1.name:carbon steel elbow 2.standard:ASME,GB,DIN,JIS,GOST ... Ltd is one of the largest pipe-fittings and carbon steel seamless pipes manufacturers in China.More than 90% of our ... standard, German standard pipe fittings, seamless steel pipe, flange, etc.MATERIALCarbon steel,stainless steel,alloy steelWe can produce according to materials ... cooperate with you! sch80 seamless a234 wpb carbon steel elbow