Pesticides can be divided into solid and liquid form in their form, and the liquid form can be divided into water, colloidal suspension and emulsifiable concentrate.Anyone who knows the properties of pesticides knows that, generally speaking, ordinary polyethylene (PE) plastic bottles can be used to

Multi-layer blow molding is a blow molding technology developed to meet the special requirements of certain industries, such as medicine, food and cosmetics, for packaging containers, such as air tightness, corrosion resistance, etc. The basic process principles and single-layer product blow molding technology Similarly, there are two main types: co-extrusion blow molding and injection (injection) blow molding. In the co-extrusion method, multiple extruded sails are used, and different resins are extruded into the multi-layer die at the same time to form a multi-layer concentric product parison, which is then blow-molded. When using injection blow molding. After injecting one layer on the male mold, the cavity is changed to inject the second layer on the first layer, and the operation is repeated to form a multi-layer product parison, and then blow molding is added. Multi-layer systems that have been used in industry include polyamide/polyolefin, polystyrene/polyacrylonitrile/polypropy