plastic stadium chair seat injection mould 1.mould,mold material:P20,2738H 2.Cavity:Single 3.Design software:UG,ProE plastic stadium outdoor ... stadium outdoor chair seat injection moldMould Core steel:S45C, S50C, P20, 2738, S55C, 718H, 618H, S136, 2316, NAK80,etc.Mold Cavity ... steel:S45C, S50C, P20, 2738, S55C, 718H, 618H, S136, 2316, NAK80,etc.Mold base ...