check valve ball seat

valve... ... check valve 单向阀; 单向活门; 检验阀 check-valve ball seat 止回阀球座 check-valve ball spring 止回阀球弹簧 ...

valve- 阀门专业术语中英文对照 -... ... check valve 阀 阀 向 ; 阀 阀 向活; 阀阀阀 check-valve ball seat 阀阀 阀 止回 球座 ...