1.Door:9-10mm thick aluminium(or 10mm thick steel) with 1mm stainless steel face.Surface with brushed treatment. Conceal hinged door frame.Each door with a Number plate place shows an individual number. 2. Body: made by 2mm thick cold-rolled steel sheet , which is fabricated through rust removing, deoiling, phosphating ect total nine processes.powder coating finish. 3. Lock: high precision dual-key lock approved by US UL safety standards ,its combination number is more than 820 thousand.Distance between lock hole is 47mm. 4. Inner boxes: made by 0.7mm thick cold rolled steel sheet, with powder coating finish,handles at the ends and can be padlocked.Red carpet inside of bottom. 5. Optional:Pull out shelf / Side panels / Top cover