Warehouse cages have a fixed capacity, stack neatly, and show their contents at a glance, which makes stocktaking easy. They are common on factory floors and also work as display, promotion, and storage containers in supermarkets. An upgraded cage can sit on racking or a production line and can be stacked; wheeled models move easily around the workshop; adding a PVC or steel plate liner stops small parts from falling through. By folding method, there are standard outward-fold, double-fold, and inward-fold types. By function, there are four main types. The first is the caster wheel warehouse cage. Wheels are fitted under the bottom, usually two swivel casters and two braked casters. It moves nimbly and lightly and is mostly used for short-distance turnover on the production floor. The second is the towing warehouse cage. Towing attachments are added on the left and right sides, usually with caster wheels as well. Several cages connect front to back and move freely across a smooth floor, towed by a towing vehicle. The third is the heavy-duty warehouse cage. This special cage was developed from customer demand. It is welded from angle steel and square tube. Compared with an ordinary cage it carries more, has a firmer structure, and has a powder-coated surface. The fourth is the foldable warehouse cage. It is convenient to access at any time, and empty cages fold flat to save space. Shanghai customers with a need can contact Xintongnuo. Tell us your working conditions and we will recommend the right type.