1.0379 1.4112 1.8881 RHA780D NKHA780L SHA780D KBHF780B Cu-P SSACC RCUP-HC NKHKC SSACD RCUP-HD NKHKD SSACE RCUP-HE NKHKE SANH310AC SHTB310 SSAH310 RCUP-H310 SANH370AC SHTB370 SSAH370 RCUP-H370 NKHK370 SCA370CR 热处理硬度，切削性和耐磨性，适用于精密冲剪冲压模，难加工的冷锻、深抽和挫牙用模及高速冲剪冲头，不锈钢板冲头。