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X42Cr13, DIN1.2083 弹簧钢:1770 1774 1778 1912 1914 1922 1926 1940 1957 1973
专业用钢:S355G2+N S355G3+N S355G5+M S355G6+M S355G7+N S355G7+M S355G8+N S355G8+M S355G9+N S355G9+M S355G10+N S355G10+M S420G1+Q S420G1+M ,中碳钢 。欢迎新老客户来人、来电联系业务指导工作!将与您合作共赢,同创辉煌!