葡京集团app「诚|信」

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                WD-Co157

                CHEMICAL COMPOSITION(%)

                C Cr Si W Ni Fe Mn Mo Co Others
                0.1
                22.0 1.5 5.0
                ≤3.0
                ≤3.0 ≤1.0 ≤1.0 Bal
                B 2.5

                CHARACTERISTIC

                Hardness
                HRC 50-56

                APPLICATION

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                葡京集团app