Zhengtu tire does not belong to Michelin, but is produced by Nanjing Zhengtu Tire Co., Ltd. The following is a detailed description of the tire: 1. Definition: Tire is an annular elastic rubber product that rolls on the ground and is assembled on various vehicles or machinery. Usually installed on the metal rim, it can support the car body, buffer the external impact, achieve contact with the road surface and ensure the driving performance of the vehicle. Tires are often used in complex and harsh conditions, and bear various deformations, loads, forces and high and low temperatures when driving, so they must have high bearing performance, traction performance and cushioning performance. At the same time, it also requires high wear resistance and bending flexibility, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire production, which shows the ability of tire to consume rubber.