hot rolled steel angel bar  flat bar  channel bar  welded pipe  spuare pipe  steel beam
zinc: 80-450g/m2
Material: Q195.Q215, Q235, SPCC, SPCD, SPCE, ST12, SAE1006, SAE1008, 08AL
Tolerance of Width: +/-0.5mm
Tolerance of Thickness: +/-0.05mm