Century Mechanical Systems [I] Pvt. Ltd offers Triple Laminated Insulated Flexible Duct. Century Mechanical Systems [I] Pvt. Ltd supplies a wide range of insulation materials like flexible ducts, fibreglass & expanded polystyrene along with tubing and sheeting products. The Triple Laminated Insulated Flexible Duct available under the brand name "Supaflex" of model 13APM is made of triple lamination of Aluminium Foil, Polyester and Metallized Polyester Film bonded to a coated spring steel wire helix. The Triple Laminated Insulated Flexible Duct is provided with thermal efficiency by wrapping the outer part with fibreglass reinforced metallized polyester film laminate.