piston valve ring
短語(yǔ)詞組
- piston compressor ring valve 壓縮機(jī)環(huán)狀閥
- supply valve piston ring [鉄路]供給閥鞲韝漲圈
- large main valve piston ring 主閥大活塞環(huán)
- Main valve piston large ring 主閥鞲韝大漲圈
- Piston Ring for Control Valve 控制閥用活塞環(huán) 返回 piston valve ring