... Cast Iron,Carbon steel,Stainless Steel4.Operation: Hand wheel, gear, square head.5.Standard: GB,DIN,JIS,ANSI,BS. ... easy install.Wenzhou ONO Valve CO.,Ltd is a professional manufacturer of valve.Our products include globe valves,check valves,safety ... 10/ANSI B16.50Specification: 1.Drivign manner: Spur gear transmission,Bevel gear transmission,Air driving,Take pneumatically manually,Hydrodynamic driving, ...