... ,Q690GB/T16270—1996Main products:steel plate,steel sheet,steel coil,shipbuilding steel sheet,stainless steel sheet,galvanised steel,PPG,steel pipe, steel strip, flat steel, etcMechanical PropertiesGradeThickness(mm)Yieldpoint ... pipe, angle, re-bar, wire, round steel, channel steel, PC steel bar, flat, bulb flat, coil steel, I-beam, H-beam, square tube, rectangular ...