一,涂镀类热镀锌,电镀锌 H220PD+ZHC220PD+Z,H220YD+ZHC220YD+Z, H260PD+ZHC260PD+Z,H260YD+ZHC220YD+Z, S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z,S550GD+Z, 低合金高强度钢: H260LAD+Z,HC260LAD+Z,H30