screw thread pitch gage

1 2 3 4 5 ... 螺纹千分尺^ screw thread micrometer 螺钉螺距规^ screw thread pitch gage 螺旋传送机^ screw transfer machine ...

直角三角形_馆档网 ... "螺纹节距规"," screw thread pitch gage" "螺纹比测仪"," screw threas comparator" ...