... flat(HP80-HP430), L shaped steel, Angle steel, Seamless pipe hot rolled ship plateship plate thickness:4mm-100mm ship plate width: 1500mm ... Q620,Q690GB/T16270—1996Main products:steel plate,steel sheet,steel coil,shipbuilding steel sheet,stainless steel sheet,galvanised steel,PPG, ... round steel, channel steel, PC steel bar, flat, bulb flat, coil steel, I-beam, H-beam, square tube, rectangular tube, L ...