ERW: Outer Diameter 10-630mm, Wall Thickness 0.5-22mm LSAW: Outer Diameter 351-1600mm, Wall Thickness 5-60mm Length: 5M-16M Executive Standard:GB/T13793-1992, GB/T3091-2001, GB/T9711.1-1997, API SPEC 5L, API SPEC 5CT, EN10217, EN10219, ASTM A53or Technical agreement Material:Q195-235, 20#, Q345(B, C), L175-L555(A, B Grade Steel, X42-X80), J55, K55, N80, L80, C90, C95, P110, Q125 The package of products: painting, oil coating, Anticorrosion &Insulation, beveled edges or plain end, the protection of pipe end, packaging. Application Fields: onshore Offshore Oil and Natural Gas the transportation of coal slurry or ore pulp medium ocean platform power station chemical industry and structural tube of urban architecture