SEVERING of metal by rolling B21B 15/00
滚管培养法
rolling tube cultivation
暂无补充释义。
相关词条
stabilisation against rolling
rolling vane gearing, hydrostatic
wire race rolling-contact bearing
making gear teeth by rolling off a tool relatively to a workpiece
rolling pressure machine
Chlorite/Mica Phlegm-Rolling Pill
grinding by rolling with the tool being a grinding worm