check valve hole liner

valve... ... check-valve guidance 止回阀导座 check-valve hole liner 止回阀孔衬圈 check-valve lever spring 止回阀杆弹簧 ...

valve- 阀门专业术语中英文对照 -... ... check-valve guidance 阀阀阀 止回 座 check-valve hole liner 阀阀 阀阀 止回 孔 圈 ...