... :A234 WPB 4.Standard:ANSI B16.9 ANSI B16.9 dn20 pipe fittings Production name45/90/180,Long/Short Radius Elbows, Equal ... /2 up to 96 From 1/2 to 24 (Seamless Pipe Fittings), From 24 to 96(Weld Pipes)ScheduleSCH10,SCH20,SCH30 ... HACE & HIC Fittings contacter:Anna 86-15132790778 ANSI B16.9 dn20 pipe fittings