We can learn about plastic product manufacturers through the process: the plastics manufacturing methods they use, or the industries they serve, such as packaging, automobiles, etc. The final product to be produced determines the type of process to be used. Therefore, most manufacturers are only good at one or two methods. Larger factories may have three to four, but few have every process. A company that supplies products to the electronics industry may have an injection molding process to make TV casings and other components. The blow molding process used to make Pet Bottle Preform is of little use to them.
The plastics industry can be simply understood as a “manufacturer of plastic products”. Along the plastic production line, it actually has extensive links with plastic material manufacturers, resin manufacturers, Chinese additive suppliers, and many other upstream or downstream manufacturers before the product is finally produced and delivered to consumers.
The extra work that needs to be done after the parts are manufactured belongs to secondary processing. This includes printing, painting, polishing, trimming, and the like. Although most manufacturers are equipped with some form of general secondary process, some specialized processes, such as chrome plating, are usually done by experts.
Plastics are widely used in many industries such as packaging; electronics and electrical; automotive; construction and construction; household products and more. Quite a number of manufacturers sell their 5-gallon Pet Preform and products to other industries, and some manufacturers trade.