Longi Group Co., Ltd. is a large enterprise group founded in 1971, covering an area of 680000 square meters and employing nearly 3000 people. The group company has six subsidiaries, among which Shandong Longji Machinery Co., Ltd. was listed on the Shenzhen Stock Exchange in 2010. The company is mainly engaged in the research and development, production, and sales of brake discs, brake drums, wheel hubs, brake calipers, steering knuckles, air pumps, water pumps, and oil pumps for automobiles. The products are sold to more than 50 countries and regions around the world. Abroad, it is the main supplier of large international automotive parts procurement groups, while domestically, it mainly provides independent brands, joint venture brands, and new energy vehicle accessories