Shanghai Yingyi Environmental Technology Co., Ltd. is a company that integrates manufacturing, sales, and service, focusing on central air conditioning end products. Headquartered in Shanghai, China, it currently has two major production bases in Shanghai and Hefei, mainly producing air vents, air valves, static pressure boxes, air conditioners, mufflers, constant variable air volume valves, and other products. The company has always taken continuous improvement of product quality as its long-term goal, forging its own brand, and relying on strong technical research and development strength, excellent product quality, and perfect after-sales service, it has won unanimous praise from numerous design institutes, engineering companies, and direct users.