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tjzhmjj
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樓主  發(fā)表于: 2020-01-09 09:05
何為天車(chē)起重機雙速雙控？知道的朋友能給詳細的講一講嗎！在這先謝謝了！
redrock99
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1樓  發(fā)表于: 2020-01-09 11:56
雙速雙控是指電機具有兩種速度，即快速，慢速，按鈕是特殊按鈕，按下一半（淺按）是一種速度，全部按下時(shí)另外一個(gè)速度

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