square tube
1.material: Q195-Q235
2.standard: GB/ASTM/JIS/BS
3.specification:15*15mm-80*80mm
4.length:4.8m-9m

 square hollow section

1.material: Q195-Q235 

2.standard: GB/ASTM/JIS/BS 

3.specification:15*15mm-80*80mm            

4.length:4.8m-9m  square tube  rectangular tube             

5.thickness: 0.8mm-3mm                   

We can provide with the high quality,available price,fast delivery and excellent service.