Tieling Valve Co., LTD. Tieling Valve Works which was established in 1935,the company was transformed into Tieling Valve Co.,in 2013,it has a history of more than 80 years for manufacturing valves and has set up military workshops, making outstanding contributions to the cause of the liberation of the Chinese people. It was rated as one of the top 500 enterprises in China's machinery industry. In 1981, the gate valve products of the company for water industry won the first "gold medal of the Administration of the China Quality Award" in the valve industry, and was named "high-tech enterprise" by the state science and technology commission.