Light material: cold-rolled material, thickness between 0.2-4.0MM, is the frame left after the cold-rolled sheet is used, some areas are called punching materials, and Chongqing Sichuan area is called light material.
Since the material type is basically free of impurities, the color formation is good, and the price is generally more than 200 times higher than the heavy waste, which is one of the best material types.
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