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1?? Cold precision forging 2?? Directly precision forging dimensional accuracy <0.07mm 3?? Precision forged special-shaped parts and no cutting 4?? ELectric conductivity>98%IACSv 5?? Hardness>HB110, after silver plating surface hardness: HV140 6?? High material utilization 7?? Press line end hardness under HB70, Pluggable end hardness>HB110