chimney valve

阀门大全(中英对照) - 豆丁网 ... check-valve pump 止回阀配流泵 chimney valve 烟道阀 choker checkvalve 阻气单向阀 ...

valve 阀门专业词汇A-Z ... check-valve to manifold pipe 止回阀至歧管管 chimney valve 烟道节气门 chlorine valve 氯阀 ...

valve-... ... check-valve to manifold pipe 阀阀 阀 阀 阀 止回 至歧管管 chimney valve 阀阀 阀 烟道 气 chlorine valve 阀阀 ...