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In case you didn’t know, the two main functions of an air duct are to distribute air through a building and exhaust air out. It is one of those components that is usually quite inconspicuous, meaning that you don’t realise its existence unless it malfunctions. There are quite a few types of materials that are used to manufacture an air duct. Ducting fabrication suppliers in West Bengal discuss the materials that are used for the purpose. Here are the Types of Material an Air Duct Can be Made From 1. Sheet Metal The most popular and hence common material which is used to make an air duct is sheet metal. Most rigid ducts are made from sheet metal which, in turn, is made out of galvanised steel or aluminium. The shapes that an air duct made from sheet metal can come in are rectangular, round or a spiral oval. The reason why steel metal air ducts are so popular is that they are the most durable. Ducting fabrication suppliers in West Bengal primarily prefer this material for their...