... Elbow Wall thickness: Sch5-Sch160,XXS4.Elbow Standard: ASME B16.9,JIS, DIN, GB/T12459,5.Elbow Material: A234-WPB. ... Elbow Productivity:8000000T/Y12.Others for Elbow (1)Special design available according to requirement(2) anti-corrosion and high-temperature resistant with black ... Seamless ,welded ,but-welding,forged,casting thread Socket -weld Elbow -- ASTM A 234 WPB,WPC,WPH stainless steel (ANSI B16.9)