欧美综合精品久久成人网,加勒比色老久久爱综合网,亚洲人成无码WWW久久,国产精品视频男人的天堂

　　  Multi-turn intelligent valve electric actuators--IMT series are generally used to gate valves , stop valves ,diaphragm valves and rod multi-turn valves to move straight forwards. IMT series and its derived products are extensively used in petrochemical, matallurgy, energy sources, municipal, light industry, food and other fields. This series plays a significant role in pipeline control system.