... hardness: equivalent to glass,7 Mohs *Dust-proof, explosive proof*Durability:5years Grade A LCD monitor: Brand:LG ... paint or plastic-spray,1.5-2.0MM steel,moisture-proof,anti-rust,anti-acid,anti-dust Packing:foam ... electrolysis plate, Cold rolled plateMultimedia systemSteroelectronic effects, Magnetic proof Sound BoxNetworkRJ45network ConnectorAccessories(Optional)barcode scanners, Scanners, cameras, ...