straight seam square tube

Product overview:

1.ERW straight seam square tube: 120x120-400x400mm(6-16mm)

2.Material: Q235B, Q345B, 20# ,STK490, STK400,S355JOH, S355J2H, S355JRH,AH36

3.Performance standard: GB/T 6728, GB/T6725, EN10210, EN10219, ASTMA500, JIS G3466

4. The product is widely used in a large construction, shipbuilding, machinery, gas and fluid transport.

Product feature:

Precision high, large diameter

Our advantage:

1.The company has won 3 sets of sophisticated production lines for square tube, 1 set of production line for cross-sections and one set of heavy JCOE/LUE production line.

2. The product has past CE certification, ISO9001-2008, Classification society certification.

3. The product has annealed oiled and packed standard for export.