... ability of corrosion protection and rust protection. It is widely used in families, stores, supermarkets, company storages and public institutions. ... of each one is 250- 500 kg. It is widely used in stores, supermarkets, company storages, public institutions. Heavy-duty ... make sure of the safety;5), Rich accessories: upright protector, guide rail, frame barrier, row spacer, wire decks, steel shelf, etc ...