Double Layer Flexible Round Duct PVC Aluminum For Ventilation System

Double Layer Flexible Round Duct PVC Aluminum For Ventilation System Product Description This duct is specifically produced for low and medium pressure heating, cooling, ventilation, exhaust and air conditioning systems. Airtight aluminium flexible ducts are produced from multi layer aluminium strengthened with high tension hard steel spring wire. It has high elasticity and flexibility. It can be easily fitted to circular, oval or rectangular connectors. In case of fire no