The main varieties of plastic containers are high-density polyethylene, low-density polyethylene and polystyrene. Rigid polyvinyl chloride, polypropylene, vinylidene chloride, cellulose plastic, polycarbonate, ethylene copolymer, nylon, etc.　　1. High-density polyethylene container 　　

high-density polyethylene blow-molded container is one of the most used blow-molded products. Polyethylene has low moisture permeability, non-toxic, and odorless. It is suitable for food packaging, but it is resistant to gas and fragrance. Organic vapor is permeable to food. Drugs and chemicals are not suitable for long-term storage. Generally used to contain liquid detergent, household bleach, salt, condiments, milk, sulfuric acid, acetic acid, antifreeze, etc.　　Second, low-density polyethylene container　　 low-density polyethylene is rich in flexibility, cold-resistant, moisture-proof, waterproof, and molded. It is convenient to burn, and the cost of the container is low, so it has more applications. It can be used to manufacture squeeze containers to store viscous products and be used for packaging honey, powder insecticides, liquid detergents, and chemicals.　　3. Rigid PVC container 　　 Rigid PVC has low gas and aroma permeability, oil resistance and chemical resistance. It is combined with impact resistance agents such as acrylonitrile-butadiene-styrene copolymer (abs) and methyl a-bromocrotonate Bottle mould/mold (MBS) to increase its strength and can be used for packaging food, cosmetics, liquid detergents, etc. Rigid polyvinyl chloride can also be made into plastic transparent cans or canned fruit containers.　　

Four, polystyrene container 　　 polystyrene container, can adopt sheet heat synthesis type and injection molding. General polystyrene is transparent, and impact-resistant polystyrene is translucent. Polystyrene containers can be used as packaging for yogurt, sour cheese, powdered chemical seasonings, etc.　　5. Polypropylene container 　　

Polypropylene is an ideal material for making transparent cans. Polypropylene sheets can be used to make transparent cans, and oriented polypropylene can be used as transparent hard containers. Polyflashene blow molding containers are often used for vinegar, infusion, liquid detergents, etc.

As the automobile industry becomes more and more fierce, the resulting automobile mold industry is gradually heating up. Recently, the Secretary-General of the International Mould Association Luo Baihui introduced at the Dongguan Hengli Mould Industry Summit Forum that the automobile and motorcycle industries have more than 70 billion mold needs every year. However, the manufacturing capacity of our country's large-scale precision molds is far from enough. At present, almost all of the cover molds of China's high and mid-range cars rely on imports.　　In my country's mold market, the development of automobile molds is the top priority. Because the automobile and motorcycle industries are one of the five pillar industries of China's national economy, China's automobile production and sales volume exceeded 19.31 million in 2012. From the perspective of the law of industrial economic development, China's automobile and motorcycle industries have entered the stage of 'economic take-off' However, such production and sales will inevitably bring about strong economic domestic demand and a huge market for automobile and motorcycle molds.　　
For example, the average use of plastic products per car in Germany has reached nearly 300 kilograms, accounting for about 22% of the total consumption of automotive materials. It is the country that uses the most plastic parts for automobiles and motorcycles in the world. In Japan, the average use of plastic per car has reached about 100 kilograms, and they all use plastic products for interior trims such as dashboards.　　 At present, the application of plastic products for automobiles and motorcycles has developed from ordinary decorative parts to structural parts and functional parts. Plastic commodity mould/mold The use of plastic raw materials has also been expanded from ordinary plastics to composite materials or plastic alloys with higher, higher impact resistance and better impact resistance. It is foreseeable that with the improvement of plastic materials and molding technology and processes, plastic products are used in automobiles and motorcycles.
The application of the automobile industry will become more common, which will inevitably lead to the great development of automobile and motorcycle moulds. With the rapid growth of the export of automobiles and motorcycles in China, the replacement of wood and metal by plastic molds will greatly increase the demand for plastic molds in the automobile and motorcycle industries. In particular, the development of new materials and new molding technologies makes plastic products The demand in the automobile and motorcycle industries is increasing day by day. To a certain extent, the consumption of plastic products for automobiles and motorcycles can reflect the development level of a country's automobile and motorcycle industries.