Rectangular Duct / Square Duct , produced by Automatic Machine which able to create Transverse Duct Flange (TDF) By using TDF , leaks can be reduced and duct installation will be easier and more economical because each ducts connecting process using TDF CORNER , not just random metal connectors.
- More ECONOMICAL: No Angle Flange required to connect ducting joints.
- The size is much more PRECISE than manual measurement.
- The RISK OF LEAKS is reduced greatly compared to products that manually created.
- The PRODUCTION and INSTALLATION process is much FASTER and more efficient than normal rectangular ducting production.
L - Shape
Joints in L form or two parts of longitudinal Pittsburgh seams.
Joints of four-piece or four parts of longitudinal Pittsburgh seams.