Specification :

1) Dimensions of square tube: 1/ 2" * 1/ 2" - 16" * 16"
2) Wall Thickness: 0.028" - 0.748"

3) Material: Q195, Q215, Q235, ASTM Gr. A/ B/ C, St35, St37
4) Standard:

ASTM A500, API, BS, JIS, GB, DIN16219/ DIN 10210

5) Surface treatment:

1, slight oil to anti-corrosion when transportation

2, painting with the color as yor requirement

3, hot dipped galvanizing with zinc 280-320g/ square meter or as request

6) Widely used in construction structure, machinery, container, furniture structure, electromechanical hardware, door and guardrail, hall structure, airport structure, plaza structure, sports apparatus and automotive parts

7) All the production process are made under the ISO9001: 2000 strictly