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1、導軌式升降機廠家http://www.sdjwsjj.com/介紹(shào)有些電路短路(lù),觸點粘合,導軌式升降(jiàng)機開關不開等,這種短路不發作(zuò)大電流,一般表現為電梯失控或(huò)電路(lù)上呈現(xiàn)某一繼電器不能打開。
Guide rail type elevator manufacturers introduced some short...