Gantry cranes
Gantry cranes have two upright supports (portals) which move along two ground based rails. The height
of the portals depends on the maximum hook height. Gantry cranes are used in factories and in outdoor
storage yards such as railway and shipping storage areas.
龍門起重機
龍門起重機有兩個鐵軌支撐,並且能在鐵軌方向上移動
貨物的起升高度取決於最大起升高度。龍門起重機用於工廠和室外
如鐵路和航運貯存區堆場等場所
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