(1) Webbing Webbing se yon senti ki gen yon lajè apeprè 50mm ak yon epesè apeprè 1.2mm trikote ak fib sentetik tankou nilon oswa polyestè. Dapre itilizasyon diferan, fòs ak elongasyon ki nesesè nan senti sekirite yo reyalize pa metòd resi ak tretman chalè. ak lòt karakteristik. Li se tou pati a ki absòbe enèji nan konfli. Règleman nasyonal yo gen diferan kondisyon pou pèfòmans senti sekirite yo.
(2) Retractor a se yon aparèy ki ajiste longè senti sekirite a selon pozisyon chita ak kò moun ki rete a, epi li retire twal la lè li pa itilize.
Divize an ELR (Emergency Locking Retractor) ak ALR (Otomatik Locking Retractor).
(3) Fixing mechanism The fixing mechanism includes a buckle, a lock tongue, a fixing pin and a fixing seat. The buckle and tongue are the devices that fasten and unfasten the seat belt. Fixing one end of the webbing to the body is called a fixing plate, the fixing end of the body is called a fixing seat, and the fixing bolts are called fixing bolts. The position of the shoulder seat belt fixing pin has a great influence on the convenience of wearing the seat belt. Therefore, in order to suit passengers of various sizes, an adjustable fixing mechanism is generally used, which can adjust the position of the shoulder seat belt up and down.