... check-valve pump止回阀配流泵 chimney valve烟道阀 choker checkvalve阻汽单向阀 ...
基于734个网页-相关网页
... 烟道阀 duct damper 移动保护板 movable protective plate 有效利用系数 productivity coefficient ...
基于60个网页-相关网页
... check-valve pump止回阀配流泵 chellomney valve烟道阀 choker checkvalve阻气单向阀 ...
基于10个网页-相关网页
... 烟道清灰口：floss hole 烟道阀：flue valve 烟囱通风：chimney draft ; chimney draught,chimney ventilation ...
基于6个网页-相关网页
短语
止回阀烟道阀
check valve flue valve
止逆阀烟道阀
check valve flue valve
净化烟道蝶阀
purifying chimney flue butterfly valve
烟道止回阀
ydzhf-GR
;
flue check valve
烟道蝶阀
Butterfly valves for gas flue
·2,447,543篇论文数据，部分数据来源于NoteExpress