... A53/A106/API 5L Gr.b seamless steel pipe 1.Standard:ASTM,API,DIN,GOST 2.Grade ... A106/API 5L Gr.b seamless steel pipe Product Introduction: 1. Kind: carbon steel seamless pipe 2. Size: Diameter: 1/2 ... Steel Grade:A53 (A,B),A106(A,B),API 5L Gr.B,X42,X52,X60,st42,st37,st52,SS400,SS490 4. Mill ... : ( 2inch to10 inch) 5. Pakages: black painting,beveled end,pipe cap,marking,bundles,wowen ...