Foldable warehouse cages are widely used in product packaging and turnover. Xintongnuo has custom-built cages in Hefei for years, and the most common question is how to choose between galvanizing and powder coating, and between cold and hot galvanizing. Two surface treatments are common: galvanizing and powder coating. Galvanizing splits into cold and hot galvanizing. For internal workshop turnover, cold galvanizing is enough; hot galvanizing costs far more and is meant for long ocean shipping or damp environments. By structure, cages come in standard, wheeled, towed, hollow-panel, and fully steel-plate-lined versions. The standard model is foldable with a folding door, no hollow panel or casters, and stacks four layers in its basic configuration. Xintongnuo's regular specs include 1000×800×840, 1200×1000×890, and 800×600×640, with wire generally 6.0mm or 6.4mm and mesh 50×50 or 50×100. A-3, A-5, and A-7 are in stock. Cages are spot-welded from steel bars with a channel-steel bottom for a stable structure; multi-point wire welding guarantees folding strength; the latch lets you open the door and take goods even when cages are stacked.