标准GMW2M-ST-S CR4 UNCOATED U ¥5.66 GMW2M-ST-S CR1 HD60G60GU镀锌 ¥6.20 UF340D+Z首钢汽车钢UF340材料0.5~1.5mm厚 ¥5.75 GMW3032M-ST-S CR210P HD60G60GU ¥5.66 GMW3032M-ST-S CR240B0 ¥5.66 GMW3032M-ST-S CR270LA ¥5.70