hot rolled seamless steel pipeSpecificationOuter Diameter: 21.3~610mm Thickness: ... s requirementStandardBS 1387, BS EN39, GB/T 3091, ASTM A53, ASTM A106, JIS G3444-2006, DIN 1626, DIN2444Grade10#, ... 20#, 16Mn,Q235,Q345,St37,St52,A53(A,B),A106(B,CSurfaceBared, Galvanized, Oiled, ... Rolled, Cold RolledPackage1. in bulk 2. packed by steel strips 3. Woven cloth with 7 slates ...