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1·Check piston diameter on oil piston shank with micrometer gauge.

使用千分尺在机油活塞体上检查活塞直径。

2·Check the piston diameter on the piston shank using a micrometer gauge.

用千分尺在活塞体上检测活塞直径。

3·With any contained extrusion die, best results are often obtained by forming wire that is somewhat larger in diameter than the finished shank.

当使用任何闭合式挤压模时，选择线径稍大于成品柄杆的金属丝成型效果最佳。