LD單梁起重機通常是指由橋架在軌道上的主梁和起重小車組合而成的起重機械。而單梁起重機橋架的主梁多采用工字型鋼或鋼型與鋼板的組合截面。起重小車常為手拉葫蘆、電動葫蘆,或者用葫蘆作為起升機構部件裝配而成。...
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