China Check Valve manufacturers
China Check Valve manufacturers Executive standard Deign specFaca to faceFlanged endTest and check GB/T12235GB/T12221ASME B16.5JB/T9092 Main performance specification Nominal pressureShell testBody materialApplicable medium 1.6MPA2.4CF8/CF8MWATER,STEAM,OIL MAIN external and connecting dime