Polypropylene: Relatively speaking, polypropylene has more varieties and more complex uses. There are many fields, such as homopolypropylene, block copolymer polypropylene (copp) and random copolymer polypropylene (rapp). According to different uses, homopolymerization is mainly used in the fields of wire drawing, fiber, injection, BOPP film, etc. Copolymer polypropylene is mainly used in household appliance injection parts, modified raw materials, daily injection products, pipes, etc. Used in transparent products, high performance products, high performance pipes, etc.