1)Constituted by all-steel sheet,high mechanic strength and loading capacity,excellent fire-proof; 2)Surface was coated with static epoxy powder,light gloss,anti-wear and anticorrosion; 3)High dimension accuracy,excellent interchangeability,easy to install and disassembly,convenient to maintenance; 4)The carpet is put on the sursafe of bare panel ,artistic and excellent decorative appearance.