valve piston
短語詞組
- valve type piston 閥式活塞
- valve operating piston 閥動(dòng)活塞
- release valve lower piston 緩解閥下活塞
- valve balancing piston 閥平衡活塞
- release valve upper piston 緩解閥上活塞
- main valve lower piston 主閥下活塞
- valve type piston pu 閥形活塞泵
- valve type piston pump 閥形活塞泵
- main valve upper piston 主閥上活塞 返回 valve piston