2013 Taizhou Huangyan injection plastic battery box mold 1.Material:P20,2738,718,45# 2.Cavity ... in 2013 Taizhou Huangyan injection plastic battery box mold Product Name 2013 Taizhou Huangyan injection plastic battery box mold Core & Cavity SteelP20 ... ,S55C,2738// 718,2738,P20,45#.Steel hardnessHRC 30-36RunnerHot / Cool runnerMould ...