Maintenance-free and corrosion-resistant stem sealing的意思|示意
美 / /
英 / /
免维护和耐腐蚀阀杆密封
Maintenance-free and corrosion-resistant stem sealing的网络常见释义
阀杆密封免维护 ...liding caps on the wedge由于塑料滑动楔形上限低扭矩 Maintenance-free and corrosion-resistant stem sealing阀杆密封免维护，耐腐蚀 With O-ring sealing与O型环密封 ..