1.

Standard:

Chinese GB50221-2001, Or Equivalent.

2.

Material:

Grade Q235, or equivalent to ASTM A36.

Grade Q345, equivalent to ASTM A572.

3.

Section:

I / H section, or customlized.

4.

Sand Blast:

Sweden SA 2.5 Sand blasting.

Welding:

Single level butt welding, fillet welding by electric arc welding, and Gas shielded welding.

5.

Surface treatment:

Zinc primer, Hot-dip Galvanize

6.

Certification:

ISO quality system.

7.

Advantages:

Light and high strength.

Corrosion resistance.

Labor saving and cost saving.

Long time use.