... /SF-450/SF-490/SF-520/SF-525/530/535 laboratory,1) size: 48×90×78cm2) frame: high frequency ... elliptic steel pipe3) desktop: melamine decorative laminate4) seat and backrest: engineering plastic board, folding5) foot: cast steel6) welding: CO2 protecting ... , flat bed, bed combination of ordinary steel, bookcase bookshelf,laboratory equipment, the products and professional. Product is durable, beautiful ...