60Si2MnA 60Si2CrA 60Si2CrVA 55CrMnA 60CrMnA
弹簧钢的牌号65 70 85 65mn 55si2mn 55si2mnb 55simnvb 60si2mn 60si2mna 60si2cra 60si2crva 55crmna 60crmna 60crmnmoa 50crva 60crmnba 30w4cr2va 65 70 85 65mn 55si2mn 55si2mnb 55simnvb 60si2mn 60si2mna 60si2cra 60si2crva 55crmna 60crmna 60crmnmoa 50crva 60crmnba 30w4cr2va
深圳市泰德特殊钢材有限公司
潘女士
13717084955
广东 深圳 龙岗区