double school desk: 1.Desk top:18mmMDF with melamine board(double-face)double school desk 2.Chair top:10mm Plywood with fireproof board 3.Metal:Epoxy Powder coated,antirust, dampproof,strong 4.Board:Fireproofing, scratch-resistant,without contaminated 5.Frame:Squarely Tube40*20mm,Thickness: 1.2mm 6.Desk:1200*400*750mm Chair: 360*360*440mm