The following are the specifications of different kinds of square pipe:;15*15-600*600pipes;.

Rectangular pipe:;10*20-600*500;,

wall thickness:;0.6mm;;-20mm;.

Criterion for Implementation ;GB/T6728-2002;,

material:;Q195,Q215,Q235,Q345B,20#;.

We can also produce special specification(such as special wall thickness or material)according to customersrequirement