handong Tongsun Automobile Technology Co.,Ltd, a subsidiary company of Zhongtong Bus Holding Co., Ltd, is located at No.6 Weisan Road, Phoenix Industrial Park, Liaocheng city, Shandong Province. Our company was founded in 1996, covering an area of 100,000 square meters.We have professional technicians, highly qualified managers, skilled workers full of experience, and new modern equipment. All these are enable us to provide a yearly production capacity of more than 8,000,000 seats, 25,000 sets of vehicle air conditioners, as well as 30,000 sets of air conditioner for heavy trucks, machineshop trucks and electric vehicles. As one of "Shandong Hi-tech technical enterprises", Tongsun possesses advanced research & development methods and strengths, a world -leading high-performance air condition laboratory. Tongsun has initially passed ISO9001:2000quality management system certification ,TS16949 in the industry and has been granted for several times the innovative contribution award for technologies influencing the bus industry, China International Bus Contest (CIBC) bus parts energy saving and environmental protection award, and other major awards. Adhering to the corporate philosophy of customer first and people foremost, as well as the market orientation. Tongsun has 5 series and more than 30 categories, covering driver seats, touring seats, business seats, luxury business seats and city bus seats, and launches the bus air conditioner with the length ranging from 5m to 18m by use of the entirely new wind patented technology in recent years, meeting the multi-layered demands for the bus seat and the air conditioners at home and abroad. Pursuing excellence and innovation, and focusing on exquisite management, Tongsun is striving to be a world top enterprise with "exceeding expectations, creating mutual benefit and win-win result, focusing on energy saving and environmental protection, benefiting the society" as its own mission.