久久免费看少妇高潮不卡-久久人人妻人妻精品-色蜜桃婷婷激情五月天-日韩欧美国产综合网

 GT Series Valve Pneumatic Actuators , are a new series part-turn type.Whose output rotation angle is 90°.It were made of TIANJIN BAILI ERTONG MACHINERY CO., LTD.It combined with ball valves,butterfly valves and so on,pneumatic valve operation can be realized.GT actuators are also suitable for other mechanic devices with 90°rotation.With attachments such as solenoid