Leading Suppliers Globally for Metal Duct Frames or Covers

Certainly! Here is a list of well-known global suppliers of metal duct frames or covers in Markdown format:

1. Titus HVAC
2. Ruskin Company
3. Lindab Group
4. Nailor Industries Inc.
5. Price Industries
6. Jeddah Filters
7. Johnson Controls
8. United Metal Products
9. Carnes Company
10. Metal-Fab Inc.

These companies are reputable in the HVAC industry for providing quality metal duct frames and covers.