Tianjin Tanggu TWT Valve Co., Ltd. was originally established in 1956 and specialized in manufacture and development of a variety of valves such as Butterfly valves, Gate valves , Check valves and Control valves. As an industry pioneer, TWT Valve has over 60 years of experience in services such as; Urban Water Supply and Drainage, Sewage Treatment, Seawater Desalination, Electricity, Petroleum, Chemical, Metallurgy, Heating, Ships, Medicine, Paper and other applications to create outstanding performance. TWT Valve offers safe, reliable and high-quality valves and also proud to be the first valve manufacturer in China to obtain ISO 9001 certificates issued by DNV: 2008 Quality System Certification; including EU Pressure Equipment Directive 97/23/EC (CE certification) China Classification Society Factory certification. "Integrity, Quality, Innovation" are the core values of TWT Valve and also the cornerstone of the company's philosophy and corporate culture, as it was at the beginning of the enterprise in 1956.