stage case 1,16 U ,523*555*753mm size 2light weight, portable 3,9mm ... and 5mm alu frame 4TUV factory case 2012 hot sale 16 U fligt case for stage.MAIN INFORMANTION OF THE STAGE ... D555*H2099mm several layer plywood with 0.8mm fireproof board,1.5mm aluminum,3"strengthen wheel,wheel height:150mm 6U ... 0 or 9.0 mm fireproof melamine board and 1.3 or 1.5 mm aluminum extrusions frame2.inside is elastic cotton ...