tool case flight case 1,4U lightweight, portable 2,10 mm fireproof plywood and 1.5mm aluminum 3.OEM, ... reasonable price,CE 4 U lightweight and portable tool box ... flight caseComposition of the tool box flight case1,5.0 or 9.0 mm fireproof melamine board and 1 ... .3 or 1.5 mm aluminum extrusions frame2.inside is ...