无机玻璃钢通风管道又称为玻镁风管，是以改性菱镁水泥为胶结料，掺入有机或无机填充料，并用中碱玻璃纤维布进行增强而制成的一种管材。具有不燃烧、耐腐蚀、强度高和重量轻等特点，被广泛应用于宾馆、饭店、大型商场、写字楼的空调工程以及矿井通风、工厂排烟、除尘等工程。在建筑工程、地下工程及工业厂房的通风中，它已经完全取代了不耐燃的有机玻璃钢通风管，并在逐步取代防腐性能差的镀锌铁皮通风管。尤其是在湿度大的地下工程和长江以南地区，它的优越性更为显著。
Inorganic glass fiber reinforced plastic ventilation pipe, also known as glass magnesium air duct, is a kind of pipe made of modified magnesite cement as binder, organic or inorganic filler, and reinforced with medium alkali glass fiber cloth. With the characteristics of non combustion, corrosion resistance, high strength and light weight, it is widely used in air conditioning engineering of hotels, restaurants, large shopping malls and office buildings, as well as mine ventilation, factory smoke exhaust, dust removal and other projects. In the ventilation of construction engineering, underground engineering and industrial workshop, it has completely replaced the fire-resistant organic glass reinforced plastic ventilation pipe, and is gradually replacing the galvanized iron sheet ventilation pipe with poor corrosion resistance. Especially in the underground engineering with high humidity and the area south of the Yangtze River, its superiority is more obvious.