TVI.TVI is a modern valve enterprise headquartered in Tianjin, integrating R&D, production and sales, with total assets of hundreds of millions of yuan and covering an area of 81,700 square meters. The company has five core organizations and more than 300 advanced equipments, producing 28 series of valve products, covering nearly 300 varieties of ball valves, butterfly valves, gate valves, etc., which are widely used in the fields of power station, chemical industry, municipal government and so on. Its ceramic valves and other more than 160 patented products leading technology, business covers the whole country and exported overseas.