... 5-30mm 2. ZINC 40-140um or 280-900g/m2 3. Strong productivity GB/T 3094 erw welded hot dip ... 17100(EN 10025), ST33, ST37, ASTM A500, ASTM A 53: Gr. A, Gr B, Gr C, Q195, Q215, Q235, Q275, Q295, Q345,08F ... 301.5-4.0120*802.0-5.060*301.5-3.060*401.5-4.0160*802.75-5.070* ... you are interested in our products, please do not hesitate to contact us! Contact Info.Viola Sales ManagerM: 0086-13920567232E: ...