We have 18 year valve production experience. The first model is the diaphragm valve, at present also in production. Most of our products are manufactured according to German standards. Now we have formed five series of products "the process control valve system", "the air operated control valve system", "the electrically operated control valve system" as well as the conveyer/transmitting instrument and the survey, the analytical control system. These products are widely used in textile printing and dyeing, water treatment, petrochemicals, biomedicine, disinfection cleansing, drink beer, food processing, paper making and deep exploration, electric power, metallurgy, oil and so on.