欧美精品 亚洲日韩-亚洲欧美日韩综合在线观看-国产欧美日韩一区二区三区-亚洲 欧美 国产 日韩

 The general explosion-proof multi-turn valve electric actuator-XZA series is always used to gate valve, stop valve and diaphragm valve. which drive the valve plate move straight forwards. If  XZA series combine with the second grade reducing mechanism such as turbine and gear reducer ect, the combination can be used to control the quarter-turn valve, such as butterfly valve , plug valve etc.