Injection molding: It uses the screw or plunger of the injection machine to solidify the molten material in the cylinder through the nozzle of the injection machine and the gating system of the mould, and injects it into the cavity to solidify.

Blow molding: It is to place the extruded molten plastic blank in the mold, blow it with compressed air and stick it to the wall of the cavity, and harden it into a plastic part after cooling.