HPM50,P21,15NI2MN 预硬高硬度镜面塑胶模具钢
S136H,GS-2316 ..
HPM50,P21,15NI..
NAK80 NAK55 预硬..
1.2738,4CR2MON..
塑胶模具钢M238,PX88..
1.2080,SKD1,CR..