Started in 1987, KOKO has accumulated rich experience in valve production, and has gained stable and speedy development. In 2001, KOKO was certified to API, ISO9001-2000 by TUV Rhineland, CE mark of EU PED Hmodel, member of China General Machinery Valve Association, member of China Petrochemical Material & Resources Market, member of the class-1 supply network of China National Petroleum Corporation, designated production enterprise of State Bureau of Petroleum and Chemical industry and China National Chemical Equipment Corporation, and our products have been recommended for engineering construction by Ministry of Construction of . Supported by robust capacity in development, research, production, inspection and test, as well as the all-around rigorous scientific management system, our products are given reasonable structure, exquisite workmanship, complete specifications and dependable quality. Widely used in the industries of petrochemical, natural gas, metallurgy, electric power, pharmaceutical, construction and etc. Zhejiang KOKO now has a workforce of 475, including 95 engineers and technicians, and over 350 processing and checkout equipments such as NC lathes, machining center and other hi-tech machines. We mainly produce gate valves, globe valves, ball valves, check valves, cock valves, butterfly valves, power station valves and etc, of 1/480(DN6-DN2000mm ) , 150lb -2500lb(0.1Mpa42Mpa), and working temperature from -196„ƒ680„ƒ, to the international advanced standards of API, ANSI, BS, DIN, NF, JIS, JPI, GB and so on. Materials mainly include carbon steel, alloy steel, stainless steel, Monel, 20# alloy and etc, or special valves made according to users€™ requests.Good valves made by KOKO, this is not only what people of KOKO are in pursuit of, but also the commitment to users on quality and service.