Middle Duty Racking: Widely used in warehouse&libiary; Load capacity:200-500kg/layer; ... and durable shelving system that is smart and clean in appearance, making it ideal for a wide variety ... or awkward items. 2.It is widely used in museum,hosipal,libiary. 3.Long Span Shelving has ... 4.It is widely used in supermarket, store, and other enterprises.This product is in the level of international standard, ...