国产免费高清一本二本三本_蜜臀不卡在线观看_国语av狠狠色婷婷丁香综合激情_黄色视频免费大片_老熟妇乱子伦系列视频_最近中文字幕版免费_一区二区三区 亚洲欧美_锏铜铜好多水_岛国大片网站在线观看_日韩午夜福利片在线

SMT series valve actuator adopts advanced non-invasive design concept.This series products has the characteristic of exquisite appearance,reliable performance,stability and efficient.The intelligent control system is advanced.The degree of explosion-proof is Ex db ⅡC T4 Gb.

SMT-Z series is multi-turn type.They are suitable for automatic control of globe valve,gate valve,throttle valve,sluice and other valves.