1.name:carbon steel elbow 2.standard:ASME,GB,DIN,JIS,GOST ... , German standard pipe fittings, seamless steel pipe, flange, etc.MATERIALCarbon steel,stainless steel,alloy steelWe can produce according to materials ... CURVATURE1D-1.5DPIPE FITTINGSAmerican standard, Japanese standard, German standard elbow, tee,reducer, pipe cap, flange and so on. ... with you! sch80 seamless a234 wpb carbon steel elbow