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