Explosion-proof ball valve
防爆双活接球阀
Shut-off valve
截止阀
Dark valve
暗阀
Gate
闸阀
Explosion-proof ball valve
防爆双活接球阀
Shut-off valve
截止阀
Universal backwash pre-filter
万向型反冲洗前置过滤器
Backwashpre-filter
前置过滤器
Floor heating pre-filter
地暖反冲洗前置过滤器
Special red copper front filter for floor heating
地暖红古铜前置过滤器
