It's all made by injection molding machine and mold
The working principle of the injection molding machine is similar to the syringe used for injection. It uses the thrust of the screw (or plunger) to inject the plasticized molten state (that is, viscous flow) of plastic into the closed cavity. , The process of obtaining products after curing and shaping for a hundred.

All plastic products require injection molding machine Injection molding is a cyclical process, each cycle mainly includes: quantitative feeding-melt plasticization-pressure injection-filling mold cooling-open answer mold parts. After removing the plastic parts, the mold is closed again for the next cycle.