制球 meaning in English
ball making
pickoff
Examples
- Industrial valves . steel ball valves . specifications
工业阀门.钢制球阀.规范 - Industrial valves - steel ball valves ; german version en 1983 : 2006
工业阀门.钢制球阀 - Shipbuilding - hull cast steel globe valves
造船.船体铸钢制球阀 - Shipbuilding - forged steel globe air valves
造船.锻钢制球气阀 - Shipbuilding - cast steel globe air valves
造船.铸钢制球气阀