piston valve liner

valve 阀门专业词汇A-Z ... piston valve gear 活塞阀机构 piston valve liner 活塞阀衬 piston valve pump 活塞阀泵 ...

配汽活塞阀缸套... ... ) mode of distributing steam 配汽方式 ) piston valve liner 配汽活塞阀缸套 ) steam distribution 配汽 ...