Can you summarize the features of the WQQ Portal Crane and its applications? Answer according to: WQQ Portal Crane is suitable for heavy work at seaports, river ports and freight yards and it can be equipped with hoisting hooks and grab buckets. Portal Crane is applicable to various types of cargos and can be used for handling containers. The Portal Crane is mainly composed by lifting mechanism, rotating mechanism and slewing mechanism. These three mechanisms can work separately or jointly. The single-jib or four-jib Portal Crane can be chosen according to different requested lifting capacities.
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