Tianjin OTS Valve Manufacturing Co., Ltd., established during the period of China's reform specializes in all kinds of industrial butterfly valves with 13340 square meters including 8600 square meters work-shop. Fixed assets of RMB20 million as well as some advanced processing equipments, among all 120 staffs (including 15 technicians). As a professional pneumatic valve manufacturer, we can provide strong ability of design, processing, assembling and testing for all Butterfly Valves. Further, as a professional pneumatic valve manufacturer, we are rich in the experience of producing butterfly valves over 10 years, all of the butterfly valves we produced keep up to the advanced standard home and aboard.