With the progress of science and technology, consumers have higher and higher requirements for commodities. At the same time, with the increasing popularity of cars, traffic safety has been paid more and more attention, so the development of safety seat industry is more and more rapid, manufacturers improve production technology to meet the needs of more consumers, Every stage car seat is produced in recent years, it can not only meet the needs of consumers to protect children, It also saves cost and resources, so it is welcomed by people.