Wenzhou ONO Import and Export Co., Ltd is made up of ten top valve and machine professional companies, mainly operates the factory’s international trading affairs, on behalf of the Chinese valve mechanical quality and technical level, and at the most preferential price to open more markets abroad, to creation the China brand. Wenzhou ONO Import and Export Co., Ltd operates more than 2000 kinds of valves and hundreds of petroleum machineries. Furthermore, we can produce various non-standard products if the customers request.