Description Aluminium flexible air ducts are specifically produced bow and medium pressure heating, cooling, ventilation, exhaust and air conditioning systems Aluminium flexible air ducts have high elasticity and flexibility and it is fire resistance Aluminium flexible air ducts can be easily fitted to circular, oval or rectangular connectors Materials: aluminium foil, non heat insulated thickness of double layers core duct is 0.02-0.03mm, thickness of steel wire is 0.9-1.2mm
