... : ANSI B1.20.1,BS 21/2779,DIN 259/2999,ISO 228 b)Butt-welding: ASME B16.25 c)Socket Welding: ASME ... ,CF3M,SS316,SS304 ASTM A216-WCB4) Size: 1/4”, 3/8”, 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”,2 1/2” ,3” ,4”5) Working pressure: max 1000 ... ,Female threaded Stainless Steel Ball valve,Butt welding ball valve,Socket Welding Ball Valve,Male threaded Ball valve,NPT Ball Valve ...