... ball non-teturn valve 球型止回阀 Steel Ball-Type Valve 钢珠活门 float-ball self-closing valve 浮球式自动关闭阀 ...
基于122个网页-相关网页
... ball valve with insulation jacket 具有保温套的球阀; 具有保温套的球阀 ball-and-lever valve 杠杆球阀 ball-type valve 球型瓣膜; 钢珠活门 ...
基于56个网页-相关网页
-
steel ball-type valve
-
ball-type valve
·2,447,543篇论文数据，部分数据来源于NoteExpress