According to the standard regulations, seat belts and safety ropes should be made of nylon, viscose, and silk materials, and metal accessories should be made of ordinary carbon steel. In fact, due to the low strength of vinylon material, it is being used less and less in actual production. Silk material has similar strength to nylon, good heat resistance, and light weight, making it a good material for making seat belts. However, it is expensive and rarely used except in special places. With the continuous development of science and technology and the research and development of new technologies and products, some high-strength, lightweight, and comfortable new materials are used in the production of seat belts and safety ropes. These materials should not be excluded from the production of seat belts.

In addition, producers should pay attention to identifying high-strength fibers and polypropylene fibers when selecting raw materials. Polypropylene fiber is not resistant to aging and is a material prohibited by the state from being used in the production of seat belts. If polypropylene is used to produce seat belts, it will pose a great threat to the life safety of the users. Due to the similarity in appearance between polypropylene filament and high-strength filament, it is difficult for non professionals to identify them. Therefore, manufacturers should pay special attention when purchasing raw materials. When its authenticity cannot be identified, it should be sent to relevant departments for inspection. Only after passing the inspection can it be used. Users of seat belts should also raise their self-protection awareness, pay attention to identifying the materials of the seat belt when purchasing, and request relevant certificates from the manufacturing enterprise. Avoid using when unable to confirm.

According to the safety belt standard, welded semi-circular rings, triangular rings, 8-shaped rings, standard shaped rings, and circular rings are not allowed to be used. However, some companies still use welded components to assemble seat belts in order to reduce production costs, and some users have not paid enough attention to this issue, which poses great safety hazards. The welding process itself is an ancient production process, with good welding quality and welding joint strength not lower than other parts of the accessory; If the welding quality is poor, the metal parts will first disconnect from the weld when subjected to force. The enterprises that produce welding parts are mostly informal manufacturers with low technical level, poor processing ability, and inability to guarantee quality. Using such accessories to assemble seat belts is very dangerous. Once a falling accident occurs, casualties are inevitable. Therefore, both producers, sellers, and users should pay sufficient attention to this issue and ensure quality control.