Second, the use of raw materials such as inorganic materials, fire is not burning, fire performance superior; another inorganic glass steel duct can be produced on-site, can be cut, can be drilled, can be opened, easy to install, save time, Flange duct manufacturers, reduce the user's investment costs, shorten the duration; the key is inorganic glass steel duct performance and low cost, cheaper than the use of other materials, installation does not require maintenance after completion, angle flange ducts to reduce maintenance costs. For more information about the product, welcome to continue to pay attention to Shandong Jiacheng Environmental Protection Technology Co., Ltd.