RPP (polypropylene) is a kind of thermoplastic resin prepared by polymerization of propylene. Polypropylene is a kind of milk white high crystalline polymer which is non-toxic, odorless and tasteless. It is one of the lightest varieties of all plastics at present. Polypropylene has excellent mechanical properties and good chemical corrosion resistance.

　　RPP plastic has a wide range of applications, such as syringes, infusion bags, blood transfusion tools and other medical equipment; cover, handle, hand wheel and other structural parts; automobile interior parts: injection molding, infusion bag, blood transfusion tools, etc
　　Seat, armrest, headrest, door inner panel, instrument panel, steering wheel, shock pad; exterior trim:
　　Bumper and fender can also be used to make steering wheel, pedal, trunk, muffler, toolbox and other mechanical parts;
　　RPP plastic has good electrical properties, which can make many electrical parts; its excellent corrosion resistance makes it can make many chemical parts, such as pipes, chemical equipment valves and so on. RPP plastic can also be used to make general household appliances, such as door and window frame, folding chair, toilet sink, etc. Due to some unsatisfactory properties of RPP plastics, the toughness can be improved by dyeing and modification according to customer requirements, cold resistance, weather resistance and dyeability can be improved, mechanical properties and heat resistance can be further improved.