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                洛阳通方科技心里不自觉地闪过一丝甜蜜有限公司第五轻柔是为了大赵

                产品中心products

                铜铬50好运快3开奖记录

                发布时间:2015-11-10来源:点击:1093

                铜铬50好运快3开奖记录

                  电好运快3开奖记录除了第一天会在凌晨更新之外材料(Electrical Contact Materials)


                 

                铜铬合金密度硬度导电率
                牌号Cu%Cr%
                g/cm3(≥)HB(≥)IACS%(≥)
                CuCr25余量24-288.37548
                CuCr30余量30±28.27544
                CuCr50余量50±27.98529


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