久久这里只有精品视频久,99自拍视频在线观看,久久久999免费国产精品,国产成人99久久亚洲综合精品,91久久久在线播放一区,国精品久久久久久久久久久,蜜臀久久精品久久久用户群体,久久99精品视频免费观看,97超碰人妻资源在线

IMT/JA series of electric valve actuators is a combination of part-turn valve actuators.It is suitable for ball valves, butterfly valves, plug valves, dampers and other types of valves.The series has the following features: 1 high control accuracy; 2 high transmission efficiency and speed; 3 with spline joints.