Shanghai Ritai Valve (Group) Co.,Ltd,who has the Import&Export Approval,is specializing in manufacturing various kinds of valves,holding a group of modernized high-tech team including 228employees,48 engineers and technicians and 25 branches and offices in all big cities of China.The SHANG RI brand valves used in water system and industry are popular in international market as the best service.Our valves are manufactured under and comply with strict domestic and international standards such as ...