1)Material :Carbon Steel Q195-Q235

   2)size: 20*20mm-200*2000mm

   3)Thickness:0.6mm-4.0mm tolerance +/-5%

   4)Standard: GB/T6728/ASTM A500/BS1387

   5)Squareness: +/-0.05mm

   6)Straightness: 0.2% of length

   7)Length tolerance: -0/+5mm 

 Price based on the  actual weight not calculate weight

Rectangular tube