What does the racing seal mean?

Racing lead seal is a kind of seal with digital bar code, which is used to ensure that the vehicle meets the competition rules in the field of racing. Lead seals are made of lead-containing alloy, and numbers and two-dimensional codes will be printed on the surface, making each lead seal a unique mark. In racing, the vehicle needs to pass the compliance inspection. After passing the inspection, the core components related to the vehicle power will be sealed with lead seals to prevent drivers from modifying the vehicle before the race. Racing is a sport, which is divided into field races and off-site races. It has a history of 100 years. The earliest racing competitions were held on the roads between cities. Later, due to the great danger of road racing, professional racetracks came into being.