Adjustable double-armed shelving with double-sided cantilever structure, where each cantilever on each level can be manually moved left or right to extend out of the shelving body for material loading and storage.

Operate the crane to hang the billets onto the shelves, then retract the jib arm after the storage and retrieval. The shelves feature double-sided cantilevers with over a dozen storage bays. Each bay can hold 2-6 tons, with the entire shelf capable of storing approximately 20-80 tons of billets.