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High lift pump shafts and special material pump shafts are required to be heat treated after roughing. Due to the reduced centering accuracy of the center hole, it has not been applied to the finishing of the shaft. The process requires a second center hole, which is troublesome. According to the characteristics of the large amount of refined car after heat treatment, the designed central hole sleeve is designed and manufactured to carry out the roughing of the shaft, and the effect is better.
Black Floor Drain,Anti Odor Black Floor Drain,Black Tile Insert Floor Drain,Long Rectangular Black Floor Drain
Kaiping City Jinqiang Hardware Products Co.,Ltd , https://www.jqfloordrain.com