Transitional Drop Cheek Elbow
29:02
The Symetrical Y Branch
22:15
Fabricating a Radius Elbow
23:31
Triangulation - Drop Cheek Elbow, fabrication
19:13
ELBOW TRANSITION : All sides reduced
12:21
Transitioning Cheek Drop Elbow
29:35
Pitched Taper Roof Jack Using Radial Lines
30:54
Paano Gumawa ng Mechanical Ducting sa Simpling Pamaraan.
26:31