3镀锌产品牌号介绍 DC51D+Z(St01Z,St02Z,St03Z) DC51D+ZF DD51D+Z(St01ZR,St02ZR) DC52D+Z(St04Z),DC52D+ZF DC53D+Z(St05Z) DC53D+ZF DC54D+Z(St06Z) DC54D+ZF DD54D+Z(St06ZR) DC56D+Z(St07Z) DC56D+ZF S220GD+Z,S220GD+ZF S250GD+Z,S250GD+ZF S280GD+Z(StE280-2Z) S280GD+ZF S320GD+Z,S320GD+ZF S350GD+Z(StE345-2Z) S350GD+ZF S550GD+Z,S550GD+ZF H220PD+Z,H220PD+ZF H260PD+Z,H260PD+ZF H300LAD+Z,H300LAD+ZF H340LAD+Z(HSA340Z),H340LAD+ZF H380LAD+Z,H420LAD+Z(HSA410Z) HR340LAD+Z(HSA340ZR) HR420LAD+Z(HSA410ZR) H180YD+Z,H180YD+ZF H220YD+Z,