Jin Yingmin, general manager of Tianjin Lovol Doushan Engine Co., Ltd., sent a letter of thanks to congratulate our company on the successful ignition of our EGR module product equipped with the first national four regulation prototype of Lovol Doosan. At the same time, he also expressed his heartfelt thanks to the product quality of Longsheng technology, the response speed of the team and the strong support. The high reliability of Longsheng's sample letter and the high quality of the company's cooperation have been proved.

Our company has always maintained the working attitude of striving for perfection in product production, pursuing perfection in quality, persisting in building excellent product projects, completing the contract agreement of both parties on time according to quality and quantity, which ultimately contributed to the success of the carrying out of the vehicle, which was fully affirmed and praised by customers, and laid a solid foundation for further cooperation and promoting the smooth development of various work in the later stage.

In the future, the company promises to continue to adhere to the working attitude of striving for perfection, and actively contribute to fight the blue sky defense war in China.