check-valve clamp

valve 阀门专业词汇A-Z ... check-valve case 止回阀箱 check-valve clamp 止回阀夹 check-valve guidance 止回阀导座 ...

valve-... ... check-valve case 阀阀 止回 箱 check-valve clamp 阀阀 止回 check-valve guidance 阀阀阀 止回 座 ...