中文字幕无码无码专区,18无码粉嫩小泬无套在线观看 ,a片试看120分钟做受图片,性vodafonewifi另类

　　  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.