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National Standard for Aluminum Alloy Building Profiles GB 5237.1-2004 Part 1 Substrate Content
national standards of People's Republic of China
GB 5237.1-2004
Instead of GB/T 5237.1-2000
Aluminum alloy profile
Part 1: Substrate
Wrought aluminium alloy extruded profiles for architecture
-Part 1:Untreated profiles
2004-11-01 Released 2005-03-01 Implementation
Issued:
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration
Foreword
Articles 5.3, 5.4.1.5, and 5.5 of this section are mandatory, and part of the contents of Table 2, Table 3, Table 4, and Table 10 are mandatory, and the rest are Recommended.
GB 5237 "aluminum alloy construction profiles" is divided into six parts:
- Part 1: Substrate
- Part 2: Anodizing, colouring profiles
- Part 3: Electrophoretic coating profiles
- Part 4: Powder Spray Profiles
- Part 5: Fluorocarbon paint spray profiles
- Part 6: Heat insulation profiles
This part is part 1 of GB 5237. The products specified in this section cannot be used directly in buildings. This section mainly serves as the substrate standard for GB 5237.2, GB 5237.3, GB 5237.4, and GB 5237.5.
This section is a revision of GB/T 5237.1-2000. This revision will change the nature of the standard from the recommended standard to the mandatory clause, and amend the clause 5.4.1.5 to read "The comparison of door and window profiles. The nominal wall thickness shall not be less than 1.20 mm, and the measured wall thickness of aluminum alloy profiles for exterior and exterior windows shall comply with the requirements of GB/T 8478 and GB/T 8479. The smaller wall thickness shall be used for aluminum alloy profiles for curtain walls. It complies with the relevant national or industry standards for project construction."
Appendix A of this section is a normative appendix.
This section replaces GB/T 5237.1-2000 from the date of implementation.
This part was proposed by China Nonferrous Metals Industry Association.
This part is under the jurisdiction of the National Non-ferrous Metals Standardization Technical Committee.
This section mainly drafted by: Northeast Light Alloy Co., Ltd., China Nonferrous Metals Industry South China Product Quality Supervision and Inspection Center, Guangdong Xingfa Group Co., Ltd., Guangdong Jianmei Aluminum Profile Factory Co., Ltd., Foshan Jinlan Aluminum Factory Co., Ltd.
The main drafters of this section: Zuo Hongqing, Lu Xinyu, Chen Shichang, Chen Hong Zai, Wang Lai Ding, Lu Jiyan, Zhang Guibin, Wang Jurong, Zhang Zhongxing.
This part is explained by the National Non-ferrous Metals Standardization Technical Committee.
The previous versions of the standards replaced in this section were:
- GB/T 5237-1985, GB/T 5237-1993 (profiles without surface treatment), GB/T 5237.1-2000.
1 Scope
This part specifies the contract content, requirements, test methods, inspection rules and packaging, marking, transportation and storage of aluminum alloy building profiles without surface treatment.
This section applies to 6061, 6063 and 6063A aluminum alloy hot extrusion profiles used in the construction industry.
The same use of hot extruded tubes or hot extrusion profiles for other industries can also refer to this section.
2 Normative references
The clauses in the following documents become the terms of this section through the references in this section. For dated reference documents, all subsequent amendments (not including errata content) or revisions do not apply to this section. However, it is encouraged to study the various aspects of the agreement in accordance with this section whether the use of newer versions of these documents. . For undated references, the newer version applies to this section.
GB/T 228 room temperature tensile test method for metallic materials
GB/T 3190 deformed aluminum and aluminum alloy chemical composition
GB/T 3199 Aluminium and aluminium alloy processing product packaging, marking, transportation and storage
GB/T 4330 Vickers hardness test
GB/T 6987 (all parts) Aluminium and aluminum alloy chemical analysis method
GB/T 8478 aluminum alloy door
GB/T 8479 aluminum alloy window
GB/T 16865 Deformed aluminum, magnesium and alloy products for tensile test specimens
GB/T 17432 Deformed aluminum and aluminum alloy chemical composition analysis sampling method
Round cast ingot for YS/T 67 LD30, LD31 aluminum alloy extrusion
Test Method for Vickers Hardness of YS/T 420 Aluminum Alloy
YS/T 436 aluminum alloy building profile drawing atlas
3 Definitions
3.1
Untreated profiles
Substrate refers to an untreated aluminum architectural profile.
3.2
Decorative surface exposed surfaces
Decorative surface refers to the surface that can still be seen after the profile is processed into windows, doors and curtain walls. It includes surfaces that can be opened when the windows, vents, doors or panels, etc. are open and closed.
4 Order (or contract) content
Purchase orders (or contracts) for the materials listed in this standard should include the following:
a) product name;
b) Brand, status;
c) specifications;
d) Size tolerance accuracy level;
e) the number of this standard;
f) Other special requirements.
5 requirements
5.1 Product Classification
5.1.1 Brand, Status
The grade and status of the product should meet the requirements in Table 1.
Table 1
The winning combination of supply status
6061 T4, T6
6063, 6063A T5, T6
Note: When ordering with other brands and status, the supply and demand sides shall negotiate and indicate in the contract.
5.1.2 Specifications
The cross-section specifications of the building profile shall be in accordance with the provisions of YS/T 436 or determined by the technical drawings signed by the supply and demand sides, and shall be given by the supplier; the length of the building profile shall be agreed upon by the supplier and the buyer, and shall be specified in the contract.
5.1.3 Tag Example
The product's mark is expressed in the order of the product name, the winning combination number, the supply status, the specification (consisting of the section number and length of the profile) and the standard number. Examples of tags are as follows:
Aluminium profiles made of 6063 alloy, supplied with T5, profile code 421001, length gauge 6 000 mm for exterior windows, marked:
Outer window profiles G063-TS 421001X6 000 GB 5237.1-2004
5.2 Ingot Quality
The quality of ingots used for extruded profiles shall comply with YS/T 67 requirements for "homogenized" ingots.
5.3 Chemical composition
The chemical composition of 6061, 6063, 6063A profiles should meet the requirements of GB/T 3190.
5.4 Size tolerance
5.4.1 Allowable deviations in the cross-sectional dimensions of profiles
5.4.1.1 The allowable deviation of profile cross-section dimensions is divided into normal, high-precision and ultra-high-precision grades, which are in accordance with the requirements of Table 2, Table 3 and Table 4, respectively. The instructions for use in Table 2, Table 3, and Table 4 are in Appendix A.
5.4.1.2 The cross-sectional dimension of the profile allows the deviation level to be determined by both the supplier and the purchaser, but the profile of the 6063, 6063A aluminum alloy shall be used for the size of the assembly, and its allowable deviation shall be high-grade or ultra-high-grade. .
5.4.1.3 When the tolerances of the dimensions are high-precision and ultra-high-precision, the permissible deviations shall be indicated in the product drawings. The permissible deviations shall not be indicated in the drawings, but the dimensions of the parts that can be directly measured. The allowable deviation is performed at the ordinary level.
5.4.1.4 The difference between the wall thickness of each face with the same nominal wall thickness and allowable deviation in the cross-section shall not be greater than half of the corresponding wall thickness tolerance.
5.4.1.5 The nominal wall thickness of small sections of doors and windows shall not be less than 1.20 mm. The measured wall thickness of aluminum alloy sections for outer and outer windows shall comply with GB/T 8478, GB/T 8479, respectively. Provisions. The smaller measured wall thickness of aluminum alloy profiles for curtain walls shall comply with the relevant national standards or industry standards for construction projects.
5.4.1.6 The allowable deviation shall be specified in the contract or drawings, as agreed upon by the supplier and the buyer, for parts with dimensional accuracy higher than the ultra-high precision grade.
Table 2
No.
Specified size/mm Allowable deviation (±)/mm
No more than 75% of the metal body size space is greater than 25%, that is, all the dimensions of the metal body is less than 75%
All dimensions except 3 columns Hollow profile a Wall thickness when the area is not less than 70 mm2 Distance between the measuring point and datum edge
>6 to 15 >15 to 30 >30 to 60 >60 to 100 >100 to 150 >150 to 200
1 column 2 columns 3 columns 4 columns 5 columns 6 columns 7 columns 8 columns 9 columns
1 ≤ 1.00 0.13 0.18 0.18 — — — — —
2 >1.00-2.00 0.15 0.23 0.22 0.26 — — — —
3 >2.00 to 3.00 0.18 0.28 0.26 0.30 — — — —
4 >3.00 to 4.00 0.20 0.38 0.30 0.35 0.42 — — —
5 >4.00-6.00 0.23 0.53 0.35 0.40 0.47 — — —
6 >6.00 to 12.00 0.25 0.75 0.41 0.46 0.52 0.56 -
7 > 12.00 to 19.00 0.29 to 0.47 0.52 0.58 0.62 -
8 >19.00 - 25.00 0.32 - 0.53 0.58 0.63 0.71 0.83 -
9 >25.00 to 38.00 0.38 — 0.61 0.66 0.75 0.84 0.95 —
10 >38.00 to 50.00 0.45 — 0.70 0.75 0.89 1.01 1.14 1.34
11 >50.00 to 100.00 0.77 — 0.98 1.09 1.36 1.58 1.87 2.17
12 >100.00 to 150.00 1.08 — 1.31 1.44 1.82 2.19 2.60 3.00
13 >150.00 to 200.00 1.41 to 1.59 1.89 2.34 2.76 3.33 3.83
14 >200.00 to 250.00 1.74 to 1.87 2.14 2.87 3.38 3.99 4.61
Note: It is mandatory that the wall thickness deviation of the profile in the specified part size of 1.20mm to 2.00mm is specified in the table.
a Unless otherwise stated, the hollow profile referred to in this standard includes profiles in which the through hole is not completely closed and the area of ​​the hollow part is greater than twice the square of the opening width.
table 3
No.
Specified size/mm Allowable deviation (±)/mm
No more than 75% of the metal body size space is greater than 25%, that is, all parts of the metal body size is less than 75% of the size
All dimensions except 3 columns Hollow profile a Wall thickness when the area is not less than 70 mm2 Distance between the measuring point and datum edge
>6 to 15 >15 to 30 >30 to 60 >60 to 100 >100 to 150 >150 to 200
1 column 2 columns 3 columns 4 columns 5 columns 6 columns 7 columns 8 columns 9 columns
1 ≤ 1.00 0.10 0.15 0.16 — — — — —
2 >1.00 to 2.00 0.12 0.20 0.18 0.21 — — — —
3 >2.00 to 3.00 0.14 0.25 0.21 0.25 0.21 — — —
4 >3.00 to 4.00 0.16 0.35 0.25 0.30 0.38 — — —
5 >4.00 to 6.00 0.18 0.45 0.30 0.35 0.42 — — —
6 > 6.00 to 12.00 0.20 0.60 0.35 0.40 0.46 0.50 -
7 >12.00 to 19.00 0.23 — 0.41 0.45 0.51 0.56 — —
8 >19.00 to 25.00 0.25 — 0.46 0.51 0.56 0.64 0.76 —
9 >25.00 - 38.00 0.30 - 0.53 0.58 0.66 0.76 0.89 -
10 >38.00 - 50.00 0.36 - 0.61 0.66 0.79 0.91 1.07 1.27
11 >50.00 to 100.00 0.61 to 0.86 0.97 1.22 1.45 1.73 2.03
12 >100.00 to 150.00 0.86 — 1.12 1.27 1.63 1.98 2.39 2.79
13 >150.00 to 200.00 1.12 — 1.37 1.57 2.08 2.51 3.05 3.56
14 >200.00 to 250.00 1.37 — 1.63 1.88 2.54 3.05 3.68 4.32
Note: It is mandatory that the wall thickness deviation of the profile in the specified part size of 1.20mm to 2.00mm is specified in the table.
a Unless otherwise stated, the hollow profile referred to in this standard includes profiles in which the through hole is not completely closed and the area of ​​the hollow part is greater than twice the square of the opening width.
Table 4
No.
Specified size/mm Allowable deviation (±)/mm
No more than 75% of the metal body size space is greater than 25%, that is, all the dimensions of the metal body is less than 75%
All dimensions except 3 columns Hollow profile a Wall thickness when the area is not less than 70 mm2 Distance between the measuring point and datum edge
>6 to 15 >15 to 30 >30 to 60 >60 to 100 >100 to 150 >150 to 200
1 column 2 columns 3 columns 4 columns 5 columns 6 columns 7 columns 8 columns 9 columns
1 ≤ 1.00 0.08 0.10 0.14 — — — — —
2 >1.00 to 2.00 0.09 0.12 0.16 0.18 — — — —
3 >2.00 to 3.00 0.10 0.15 0.18 0.20 — — — —
4 >3.00 to 4.00 0.11 0.20 0.20 0.22 0.23 — — —
5 >4.00 to 6.00 0.12 0.25 0.23 0.24 0.26 — — —
6 > 6.00 to 12.00 0.13 0.40 0.26 0.27 0.29 0.30 -
7 >12.00 to 19.00 0.15 — 0.29 0.31 0.32 0.33 — —
8 >19.00 to 25.00 0.17 to 0.33 0.34 0.35 0.38 0.42 -
9 >25.00~38.00 0.20 — 0.38 0.39 0.41 0.45 0.49 —
10 >38.00 to 50.00 0.24 — 0.44 0.45 0.49 0.54 0.59 0.71
11 >50.00 to 100.00 0.41 — 0.61 0.65 0.76 0.85 0.96 1.13
12 >100.00 to 150.00 0.57 — 0.80 0.85 1.02 1.16 1.33 1.55
13 >150.00 to 200.00 0.75 — 0.98 1.05 1.30 1.46 1.69 1.98
14 >200.00 to 250.00 0.91 to 1.16 1.25 1.58 1.79 2.04 2.40
Note: It is mandatory that the wall thickness deviation of the profile in the specified part size of 1.20mm to 2.00mm is specified in the table.
a Unless otherwise stated, the hollow profile referred to in this standard includes profiles in which the through hole is not completely closed and the area of ​​the hollow part is greater than twice the square of the opening width.
5.4.2 Angle Allowable Deviation of Profiles
The allowable deviation of the profile angle should be in accordance with Table 5, and be noted in the drawings or in the contract. When not specified, the 6061 alloy is executed according to the fine grade, and the 6063 and 6063A alloys are executed according to the high-precision grade.
table 5
Level tolerance
Precision grade ±2°
High-precision ±1°
Ultra-high precision ±0.5°
Note: When the deviation requirement (+) or (-) is allowed, the deviation is determined by both the supplier and the buyer.
5.4.3 Plane clearance
Place a ruler across the plane of the profile, as shown in Figure 1. The gap between the profile plane and the ruler should be in accordance with Table 6. When the grade is not indicated, the 6061 alloy is executed according to the fine grade, and the 6063 and 6063A alloys are executed according to the high-precision grade.
Table 6
Profile width plane clearance
Precise high-precision ultra-high precision
≤25 ≤0.20 ≤0.15 ≤0.10
>25 ≤0.8%×B ≤0.6%×B ≤0.4%×B
Any 25mm width ≤0.20 ≤0.15 ≤0.10
Note 1: B is the width of the measured surface
Note 2: Not suitable for profile planes including openings. If it is required to combine the two sides of the opening as a complete plane, it should be noted in the drawing.
5.4.4 Surface Clearance of Profiles
Attach the standard template to the surface of the profile, as shown in Figure 2. The clearance between the profile surface and the standard template is such that the permissible larger value of the chord length per 25 mm does not exceed 0.13 mm, and the portion under 25 mm is calculated as 25 mm. When the central angle of the cross-sectional arc portion is greater than 90°, it should be determined by the chord length of the central angle of 90° plus the chord length of the remaining central angles. Profiles that require inspection of surface clearances should be noted on the drawing or in the contract. The standard template for checking the surface clearance is provided by the buyer.
5.4.5 Curvature of Profiles
The bending of the profile is to place the profile on the platform, and when the bending is stable due to its own weight, a larger clearance (h1) between the underside of the profile measured along the length of the profile and the platform, or a length of 300 mm along the length of the profile. On the surface of the profile, the measured larger value (hs) of the gap is shown in FIG. L in the figure is the length of the length.
The curvature of the profile shall comply with the provisions of Table 7. The degree of accuracy of the bending degree shall be specified in the contract, and the 6060T5 and 6063AT5 sections shall be executed according to the high-precision level, and the rest shall be executed according to the fine grade.
Table 7
The diameter of the circumcircle is less than the wall thickness, not more than
Precise high-precision ultra-high precision
Any 300mm Length hs Full Length Lmht Any 300mm Length hs Full Length Lmht Any 300mm Length hs Full Length Lmht
≤38 ≤2.4 1.5 4×L 1.3 3×L 1.0 2×L
>2.4 0.5 2×L 0.3 1×L 0.3 0.7×L
>38 — 0.5 1.5×L 0.3 0.8×L 0.3 0.5×L
5.4.6 Twisting of profiles
The method of measuring the degree of twisting is as follows: When the profile is placed on a platform and the weight is made stable by its own weight, along the length of the profile, a large distance N between the bottom surface of the profile and the platform is measured, as shown in FIG. 4 . The twist value is subtracted from the N value.
The degree of twisting is divided by the diameter of the circumscribed circle of the profile, and is expressed in millimeters allowed to be twisted per millimeter of the width of the profile. Profiles with a nominal length of less than or equal to 6 m should meet the requirements of Table 8. Big dry 6 m. Both parties negotiate. The degree of twisting accuracy shall be specified in the contract. When not specified, 6060T5 and 6063AT5 profiles shall be executed according to high-precision grades.
Table 8
Circumcircle diameter/mm Twist degree/(mm/mm width), not more than
Precise high-precision ultra-high precision
The total length per meter length over the total length per meter length over the length of each meter
>12.5 to 40 0.052 0.156 0.035 0.105 0.026 0.078
>40-80 0.035 0.105 0.026 0.078 0.017 0.052
>80-250 0.026 0.078 0.017 0.052 0.009 0.026
Example: High-precision twisted profiles are required. The diameter of the circumcircle is 120 mm and the width is 80 mm. The N value measured over a length of 1 m is 2 mm and the bending value is 1 mm. The twist value is 1 mm. , Twist width per mm of profile is l/81 = U. 012 3, look-up table 8, allows the twisting value to be 0.0l7, namely the actual twist degree is smaller than the allowable twist degree, is qualified.
5.4.7 Fillet Radius Allowable Deviation Profile Rounding is shown in Figure 5. If there is a deviation from the demanding party's requirements, indicate in the drawings that the allowable deviations refer to the provisions of Table 9.
Table 9
Corner radius tolerance
Transition fillet radius r0 +0.4
<, DIV align=center>R≤4.7 ±0.4
R>4.7 ±0.1 R
Note: When the allowable deviation requires only (+) or (-), the supply and demand parties negotiate and determine.
5.4.8 Allowable deviation of profile length
5.4.8.1 When the length requirements of the profile are specified, the contract shall indicate that when the nominal length is less than or equal to 6 m, the allowable deviation is +15 mm: when the length is greater than 6 m, the two parties are allowed to negotiate and determine the deviation.
5.4.8.2 When the total length allowable deviation is +20 mm for a section delivered in a double-footage, the margin should be added in the contract.
5.4.8.3 The delivery length of indeterminate profiles is 1 m to 6 m.
5.4.9 Permissible deviation of end cut
The cut end of the profile should not exceed 2°.
5.5 Mechanical Properties
The room temperature mechanical properties of 6063-T5, 6063-T6, 6063A-T5, 6063A-T6, 6061-T4, and 6061-T6 profiles should meet the requirements of Table 10.
Table 10
alloy
Alloy state
Wall thickness/mm tensile test hardness test
tensile strength,
Σb /MPa specifies non-proportional elongation stress, Rp0.2/MPa
Elongation/% Specimen Thickness/mm Vickers Hardness HV Vickers Hardness HW
not less than
6063 T5 all 160 110 8 0.8 58 8
T6 All 205 180 8 —
6063A T5 ≤ 5 0.8 65 10
>10 190 150 5
T6 ≤ 5 —
>10 220 180 4
6061 T4 All 180 110 16 —
T6 All 265 245 8 —
Note 1: When the measured wall thickness of the profile sampling part is less than 1.2mm, the elongation is not measured.
Note 2: The temperature-mechanical properties of quenched natural aging profiles are values ​​that are normal temperature aging for 1 month. When the tensile test is carried out at room temperature for less than one month, the sample shall be rapidly processed, and its room temperature longitudinal mechanical properties shall comply with the specifications of Table 10.
Note 3: Vickers hardness, Vickers hardness, and tensile test are only one item, and the arbitration test is tensile test.
Note 4: The tensile test requirements in the table are mandatory.
5.6 Appearance quality
5.6.1 The surface of the profile shall be clean and free from defects such as cracks, peelings, corrosion and air bubbles.
5.6.2 Minor pressure pits, bumps, and scratches are allowed on the surface of the profile. The allowable depth is shown in Table 11; the depth of the die squeezing mark is shown in Table 12. The decorative surface shall be indicated on the drawings, and if not specified, it shall be performed on the non-decorative surface.
Table 11
State Defect Allowed Depth/mm, not greater than
Decorative surface non-decorative surface
T5 0.03 0.07
T4, T6 0.06 0.10
Table 12
Alloy mold extrusion depth / mm, not more than
6061 0.06
6063
6063A 0.03
5.6.3 The end of the profile is allowed to have local deformation due to sawing. Its longitudinal length should not exceed 20 mm.
6 Test
6.1 Chemical Composition Analysis Methods
The analysis of chemical composition is conducted according to the method specified in GB/T 6987. The chemical composition analysis sampling method should be
The provisions of GB/T 17432.
6.2 Room Temperature Mechanical Properties Test Method
The tensile test of the profile is performed according to the provisions of GB/T 228. Samples are prepared according to GB/T 16865 regulations. The Vickers hardness test of the profile is carried out according to the provisions of GB/T 4340. The Vickers hardness test is carried out with a clamp-type hardness tester and is performed according to YS/T 420.
6.3 Measurement Methods
The dimensions of the profile are measured using tools such as calipers, micrometers, R gauges, feeler gauges, and steel tape measures.
6.4 appearance quality inspection method
Apply normal vision and check apricot under natural scattered light conditions without using an amplifier. When the depth of the flaw cannot be determined, it can be measured by grinding.
7 Inspection Rules
7.1 Inspection and Acceptance
7.1.1 Profiles shall be inspected and accepted by the supplier's technical supervision department to ensure that the profile quality meets the requirements of this standard (or contract) and a quality certificate shall be completed.
7.1.2 The acquirer may conduct re-inspection of the received product in accordance with the provisions of this standard. If the results of the re-inspection are not in accordance with the provisions of this standard or the contract, the relevant provisions of this standard shall be submitted to the supplier, and shall be settled through negotiation between the supplier and the buyer. . The objections that belong to the appearance quality and dimensional deviations shall be filed within one month from the date of receipt of the product. They are objections of other properties and may be filed within three months from receipt of the product. If arbitration is required, the arbitration shall be sampled on the demand side and shall be jointly conducted by the supply and demand sides.
7.2 Batches
Profiles shall be submitted for acceptance in batches. Each batch shall consist of the same grade, state, and specifications of the profiles. The batch weight shall not be limited.
7.3 Inspection items
Each batch of profiles should be examined for chemical composition, dimensions, mechanical properties, and appearance quality.
7.4 Sampling
The sampling position and sampling quantity of the profile shall meet the requirements of Table 13.
Table 13
Test item sampling position Sample number Required number of chapter number Inspection number of chapter number
The chemical composition meets the requirements of GB/T 17432 per melting or batch (per 1000kg product) not less than 1 5.3 6.1
Mechanical properties in line with the provisions of GB/T 16865 per batch of 1%, not less than 10 5.5 6.2
Deviation from any part of any size 1%, not less than 10 5.4 6.3
Appearance quality arbitrary parts by root 5.6 6.4
7.5 Judgment and Processing of Inspection Results
7.5.1 When the chemical composition fails, the entire batch is rejected. When the size and appearance quality are not qualified, it is unqualified for a single piece. It allows one-by-one inspection and the qualified person delivers.
7.5.2 When one index of mechanical properties is not qualified, four samples (further unqualified profiles) shall be taken from the batch (furnace). If the retest result still has one sample failed, Failure of the entire batch can also be tested by the supplier on a one-by-one basis, or repeated heat treatment and re-sampling.
8 Signs, Packaging, Transport, Storage
8.1 Package Mark
Profile box signs should comply with GB/T 3199 regulations.
8.2 Packaging, Transport, Storage
Profiles are not oiled, and their packaging, transportation and storage are performed according to GB/T 3199. The packing method should be specified in the contract.
8.3 Quality Certificate
Each batch of profiles should be accompanied by a quality certificate that meets the requirements of this standard. It states:
a) supplier name;
b) product name;
c) the winning combination number and status;
d) specifications;
e) weight or number of pieces;
f) batch number;
g) mechanical test results;
h) the standard number;
i) The mark of the technical supervision department of the supplier;
j) packing date;
k) Production license number and expiration date