sluice valve, check valve and meter ferrule, stopcock and gooseneck ferrule, check valve and gooseneck stopcock. meter and sluice valve
Answer Discuss in Comment
"Scientists dream about doing great things. Engineers do them."
PSC Advertisement ⏩ | Federal PSC | Bagmati PSC | PSC Karnali | PSC Lumbini | PSC Sudurpaschim | PSC Gandaki | PSC State 1.