Ningbo Valve Factory Sepcializing in Large Indurial Valves. Fifty years elapsed, company now has accumunated enormous experience and techniques home and abroad, in early years, company was awarded first grade enterprize, the only nominated supplier of butterfly valve by China Engineering Ministry. Our goal: set a butterfly valve pattern in China, supplying best quality at a lower price compared with other suppliers home and abroad. Welcome to order from us, any of your inquiry shall be replied within two days at most.