seamless steel pipe:Specification: ASTM A106/A53/API 5L GR.B Size: from 1/2" to 36", OD from 21.3 mm to 914.4 mm Wall Thickness: from 4 mm to 40 mm Schedule: SCH10,SCH20, SCH40, STD, SCH80, XS, etc. Length: 5.8 meters for 20ft container, 6-12 meters for 40ft container Packing: In bundles,...