阀罩 meaning in Chinese

cylinder cap
valve bonnet

Valves - materials for bodies , bonnets and covers - part 1 : steels specified in european standards
阀门.阀体阀盖和阀罩用材料.第1部分:欧洲标准中规定的钢材
Valves - materials for bodies , bonnets and covers - part 3 : cast iron specified in european standards
阀门.阀体阀盖和阀罩用材料.第3部分:欧洲标准中规定的铸铁
Valves - materials for bodies , bonnets and covers - part 4 : copper alloys specified in european standards
阀门.阀体阀盖和阀罩用材料.第4部分:欧洲标准中规定的铜合金
Valves - materials for bodies , bonnets and covers - part 2 : steels other than those specified in european standards
阀门.阀体阀盖和阀罩用材料.第2部分:欧洲标准中未规定的其它钢材
Transportable gas cylinders - valve protection caps and valve guards for industrial and medical gas cylinders - design , construction and tests
气瓶.工业和医用气瓶的阀保护帽和阀罩