Plastic crate also known as logistics box, with folding resistance, aging resistance, bearing strength, tensile, compression, tear resistance, high temperature resistance, rich color and other characteristics, made of packaging box type turnover box can be used for turnover can also be used for finished product transportation, packaging light, durable, stackable. The method of plastic injection molding plastic products is to inject molten plastic into the mold of plastic products under pressure, and get various plastic parts you want after cooling and forming. There are special mechanical injection molding machines for injection molding. Currently commonly used plastics are polyethylene, polypropylene, ABS, PA, polystyrene and so on.