High Temperature Flexible Air Duct, Air Condition Duct, Insulation Air Duct manufacturer / supplier in China, offering Insulated Portable AC Hose 4"-59" Diameter 3mm Thermal Barrier, Explosive Proof Duct - Conductive Flexible Ventilation Hose with Grounding Wire, Industrial Flexible High Temperature Hose [-45° C to 300° C] Insulated & Abrasion-Resistant and so on.