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解放牌越野汽车的铰盘球面蜗杆如图1。过去,采用我厂供应的SY5×20 GB320 Z_1S酚醛树脂结合剂油石研磨。由于这种油石的性能不佳,齿面光洁度只能达▽_
Jiefang licensing off-road car’s hinge plate spherical worm shown in Figure 1. In the past, I used SY5 × 20 GB320 Z_1S phenolic resin binder whetstone grinding. Due to the poor performance of this stone, tooth surface finish can only reach ▽ _