Differentiated polypropylene fiber yarns can utilize the different properties of polypropylene fibers to meet customers' diverse product needs. In addition to being used in ordinary woven belts, box bags, ropes and other products, they can also provide super-strong yarn, UV-resistant yarn, anti-aging yarn, low-temperature resistant yarn, flame retardant yarn and other differentiated products, such as mosquito nets, geotechnical fabrics, sunshade cloths, Christmas trees, etc.