检查孔盖 meaning in English

cover of access
inspection cover
inspection plate
manhole plate

Brake drum inspection hole cover
闸轮检查孔盖
Standard specification for manhole cover assembly , bolted , raised , oiltight and watertight
防油防水隆起的螺栓连接检查孔盖组件标准规范
Standard specification for manhole cover assembly bolted , semi - flush , oiltight and watertight
防油防水半嵌入螺栓连接检查孔盖组件标准规范
Standard specification for manhole cover assembly , bolted , semi - flush , oiltight and watertight , hinged
防油防水半嵌入螺栓铰接检查孔盖组件