1.ERW steel pipe 2.OD:21.3-660mm 3.W.T:1.4-22mm 4.Length:1-20m 5.Competitive price,best service,quanlity 1.Commodity Name ERW steel pipe 2.Standard API 5L, API 5CT,ASTM A53 ,ASTM A252, EN10217,EN10219 3.Outer Diameter 21.3_660 mm or 1/2inch_26inch 4.Wall Thickness 1.4mm_22 mm 5.Length 1_20 m 6.Packing small size, in bundles, big size, in bulk 7.Payment Term T/T, L/C 8.Delivery Time 45 days after we received the deposit or the