日本特级淫片免费看,综合色一区二区三区,天天射天天更新天天日,最新日韩精品视频免费在线观看,av免费在线观看欧洲,女人一区二区三区视频,日本理论片一区二区三区,91久久国产综合久久久,日本色网视频在线观看

FAQ
Why the armature plate has been sucked,but has a slight vibration and the suction is insufficient.
4 years ago243 Clicks
Q:  Why the armature plate has been sucked,but has a slight vibration and the suction is insufficient.
A:check whether the body surface of magnetic lock and adjust the armature plate is appressed,or try to adjust the looseness of armature plate,or check if the Current  and voltage is sufficient
 
Professional electric locks manufacturers-YLI ElecAll rights reserved,Email:yli@yli.cn
Login
Register