... size elbow,reducer,weldolet,coupling,steel pipe cap,seal head,end cap,concentric reducer,eccentric reducer,steel pipe,pipe ... acc. to the standard of GB /ASTM / ASME / DIN / JIS ASTM B 16.9 /16.11 B 16 ... or reducing tee, CON reducer, ECC reducer, pipe cap,flange. CON AND ECC REDUCER: CARBON STEEL,STAINLESS ... 142018-1420MATERIAL: A234WPB,A283,A105,A53,A106,API5LSTANDARD: ASTM/ANSI,DIN,ISO,GB,JIS,BS OTHERS:1. ...