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 ... to carry and transportFeature and advantage of the tool box flight case1,lightweight, high capacity with good fireproof plywood and aluminum ...