TDF system is divided into three types: T-12, T-15, duplex machine Z-T12. Both sides of T-12 and T-15 are formed at the same time, one side forms into trans-verse flange shape ", and the other side forms crooked clip shape “. Both sides of duplex machine Z-T12. are formed into “ shape at the same time. Its width range can be adjusted from 300mm to 1530mm.
TDF of ACL may produce both transverse duct snap flange and the corresponding duct corner. The technical data of T-12DC and T-15DC is listed bellow:


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