... NPT, etc.Ningbo Jiekelong, branch of Ningbo Jintian Copper (Group) Co., Ltd., which is one of China’s Top 500 Enterprises ... of “High-tech Enterprises”, “Famous brand of Chinese Valves”.Limited resources, unlimited use. Established in 1998, Ningbo Jiekelong Manufacturing ... , water meters and various pipe fittings etc., the company is devoted provide high-quality professional services to all customers ...