Tianjin Bell Automatic Instrument Technology Co., Ltd. is an enterprise belonged to famous Tianjin University of China,located in Tianjin which is one of the instrument industry base.We have forty years producion experience specialized in all kinds of valves and electric actuators.Our products are sold to all the provinces of demestic and exported to Europe and America,Southeast Asia,Middle East.Now we would like to expand business worldwide,so we will provide products with the most favorable price,the best quality and the most professional service!