... ways 3. Hot runner 4. Automatic injection plastic over molding detail as follow:1,part name: Plastic Injection Mold 2,Mould core:NAK80 perhardened steel( ... ,2738 etc)3,Mould base:LKM4,Mould Cavity:multi.Specifications1.Mold Base:LKM, HASCO 2.Lifespan: 10 years3.Hardness:HRC50 ... OK.Plastic Mould Material 45#, 50#, P20, H13, 718, NAK80, S136, SKD61, etc Mold Life 10 years Mold Base LKM, HASCO, etc Mold ...