After the liquid plastic is sprayed out of the blow molding machine, the wind force blowing out of the machine is used to blow the plastic body attached to the mold cavity of a certain shape, so as to make the product. Plastic is melted and quantitatively extruded in the screw extruder, and then molded through the mouth film, and then there is a wind ring blowing air cooling, and then there is a traction machine at a certain speed traction, winding machine will be wound into a roll. Extrusion blow molding will be thermoplastic pellets (or powder), after the extruder plasticization, through a specific die, prepared as a hot melt-like tubular parison, and then blow molding. Injection blow molding the use of open-type molds will be injected into the parison on the mandrel, to be parison after appropriate cooling (so that the parison surface curing, moving the mandrel does not cause the parison shape damage or pendant deformation), the mandrel and the parison together to the blow mold, so that the blow mold is closed through the mandrel into the compressed air, so that the parison blowing the formation of the required products, cooled and shaped to remove the product. Stretch blow molding in a specific temperature range, so that the parison forced to extend the molding, in the molding at the same time, the products of the wall of the macromolecules produced in the directional arrangement and fixed, thus greatly improving the performance of plastic containers. This is a molding method in which a bottomed parison heated to an appropriate temperature below the melting point is placed in a mold, and blow molding is performed immediately after axial stretching with a tension rod. Multi-layer blow molding is a molding method that prepares multi-layer containers by using multi-layer composite mold blanks through the blow molding process. Through a variety of different plastic layers of reasonable matching, to achieve the effective complementarity of the performance of each layer of plastic, so as to overcome some of the inherent shortcomings of single-layer plastic containers. It should be noted that within the two-platen injection molding machine, should maintain a more adequate plastic raw materials. And different raw materials, should be done according to the needs of different degrees of drying, which also allows us to meet the processing needs of the process. Generally speaking, the operation of the equipment is required to be trained, if it is a novice, try to have a staff member on the side of the guidance.