... 2.material:PPR 3.type:elbow,coupling,tee,three way valves 4.size:1/2", 3/4 ... moulds. We have made many injection plastic PPR Three Way Ball Valve.Primary Competitive Advantages:1. ... steelMolding life:>1,000,000shotsNameplastic three way ball valveHardness of Cavity & Core:32-55HRCHardness of Wear Parts ... angel pin, etc.Runner:ColdCooling system:In core baffle cooling and in cavity plate chain drilling ...