District-level agent in gyeongdong, nabian tianjin. Focus on sales, installation and maintenance of gas wall hangers, gas heaters, water heating mattresses, new wind systems, commercial boilers, air-conditioning and hot water equipment, solar energy equipment, further design and construction of boilers. The market for heating in the deep-tilled tianjin region has been providing efficient programmes, high-quality equipment and improved after-sales services for owners for 20 years。