Double Suspension Rod with Duct Panel, Galvanized coating, wire thickness is 5 MM and rod hanger length is 20 cm. If desired, we have products in different sizes... you can also buy them in different sizes... Duct Panel Double Hanger Rod products are galvanized zinc plated. Double Hanger Bar with Channel Panel, Galvanized Hook to Wire Board, Hook products, They are hanger hooks used in many places such as markets, pharmacies, glassware, electrical home appliance stores, electrical hand tools display in technical construction markets, hardware stores...