In addition to light weight, high strength, good impact resistance and wear resistance, ship ropes have advantages such as corrosion resistance, mold resistance, and insect resistance. If the strength and wear resistance of nylon cables are several times greater than those of hemp and cotton cables, and the specific gravity of polypropylene cables is less than that of water, they can float on the water surface, making operation convenient and safe. Chemical fiber ropes are divided into two types according to their processing structure: 3-strand, multi-strand twisted ropes, and 8-strand, multi-strand braided ropes. The diameter of a 3-strand cable is generally 4-50 millimeters, while the diameter of an 8-strand cable is generally 35-120 millimeters. In addition to being used for mooring ships, chemical fiber ropes are also widely used in transportation, industry, mining, sports, and fishing.