Hot runner System injection mould 1.durable and resonable price with high quality ... ,718,8407,S136,NAK80,P20,KD-61,NIMAX ect.3Hardness of steel15~60 HRC4CavitySingle-cavity ,Multi-cavity5RunnerCold runner,Yudo/DME/HASCO ... :Mature,perfect and excellence,but simple design.Other products Most of our OEM/ODM, plastic products serve for Electric Appliances, military ...