backflow preventer
短語(yǔ)詞組
- backflow w preventer 回流防止器
- BFP Backflow Preventer 回流防止器
- Low -resistance backflow preventer 低阻力倒流防止器
- Reduced pressure zone backflow preventer 減壓回流防止閥
- Reduced -pressure type backflow preventer 減壓型倒流防止器
- backflow preventer with high -energy consumption 高能耗管道倒流防止器 返回 backflow preventer