... ,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 ... offshore costruction, pressure vessel factory, power generation, naval and military steel fabrication, machined metal parts industries,etc.Stock over 100,000 ton ...