Difference Between TDF Duct And Angle Duct - HARSLE Duct ...
2021-9-6u2002·u2002Angle iron flange ventilation pipe is the flange of galvanized steel plate ventilation pipe, which is angle iron. It is a kind of ventilation pipe connection. Generally, large ventilation pipes have flanges and small air pipes have no flanges. The common plate flange ventilation pipe has another name, a non-flange ventilation pipe.
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