Which is better, a gem tire or a gem king?

Gemstone tires are of good quality. Gemstone tire is a product of Shandong Fangxing Rubber Co., Ltd. Its R&: D design comes from TTA, and most of its core personnel and engineers come from Michelin. Excellent R&D personnel; Ma pai, Han Tai, Bridgestone s; And then recruited d talents. In the tire industry, TTA basically represents R&: D-class, one-step hybrid technology is currently in the leading position.