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1、導軌式升降機廠家http://www.sdjwsjj.com/介(jiè)紹有些電路短路,觸點粘合(hé),導軌式升降機開關不開等(děng),這種(zhǒng)短路不發作大電流,一(yī)般表現為電梯失控或電路上呈現(xiàn)某一繼電器不能(néng)打開。
Guide rail type elevator manufacturers introduced some short...