圓坯

規(guī)格：Φ50mm-Φ180mm

品種：45#優(yōu)質(zhì)碳素結(jié)構(gòu)鋼 40Cr/27SIMn/37Mn5等合金結(jié)構(gòu)鋼

規(guī)格：Φ16mm-Φ180mm

銷(xiāo)售熱線(xiàn):400-8760-678