Ruian Shuanglong Plumbing Valve Core Co., Ltd, founded in 1999.We are a professional engaged in the manufacture and sale of Ceramic Cartridge. After years of hard work, the scale expands gradually and products quality improve dramatically. It has reached the industry standard in its design, service and manufacturing. We can supply a wide range of prducts to meet ever-changing market demands.Customized orders are welcomed.Our products have passed ISO9000 and French ACS .The products are manufactured in strict accordance with the standard of China's GB18145-2003.We are equiped to do the sealing performance test, burst pressure test, flow test, life cycle test, cold/hot fatigue test to ensure in supplying high-quality products for the faucet manufacturer in both home and abroad.We sincerely look forward to the cooperation with you, and we aim to provide you more high-quality products with good prices. Looking forward to your consultation!