Various size waterproof aluminum briefcase hard case 1.Panel:Aluminum plate 2.Handle:Metal handle 3.8 ... characteristics of sharp unfavorable penetration.The lining using the best EVA and composite back to solid, and they have the charateristics ... ,fire-proof plate,aluminum plate,PMMA Vibration-proof material available:EVA,sponge,velvet,flocked fabric,ash rubber Lock type available:number ...