... Air-proof, Water-proof, sound insulation, thermal insulation, Anti-aging, Good-combustion-retarding performance, Easy maintenance, Environmental protection ... are available for your choice.4. Accessories with anti-loosing and anti-theft device ensure steadiness and security.5. ... qualified Alloy Aluminium 80series, 88series, 50series, 70series. etc.b. Wall thickness 0.8mm-4mmc. various Surface treatmenst: ...