China Jinyuan Plumbing Company Limited. is a professional company specializes in producing various plumbing materials as brass & bronze valves, double check valve, double check valves, copper fittings, brass fittings, faucets, bibcock, and so on. Quality assurance and customer satisfaction lead Hortai's top belief. Our professional manner is to regard any details in process for your content. With superior quality, attractive designs, and competitive pricing, we have carved out a large share in internatioanl market as Europe and North America. Furthermore, our excellent services and on-time delivery have won us great reputation among our customers. We can produce double check valve, double check valves according to your requirements.