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