Elevator ukana
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Asynchronous Geared Traction Freight Elevator
Hoʻohana ʻo Tianhongyi freight elevator i ke alakaʻi hou microcomputer controlled frequency conversion variable speed regulation system, mai ka hana a hiki i ka kikoʻī, he mea lawe kūpono ia no ka lawe ʻana i nā ukana. ʻEhā kaʻa alakaʻi a me ʻeono mau ala alakaʻi.