材质:20#.,45#,.,20G,.12Cr1MoVG.,15CrMoG,.,16Mn,.,35CrMo,.,10CrMo910.,27SiMn.,42CrMo.,1Cr18Ni9Ti等.,产地/厂家:天津钢管厂、包钢、衡钢、宝钢、鞍钢、洪都钢厂等、大量库存欢迎新老客户光临！