MS HVAC & Electro Mechanicals Pvt Ltd usually works fine if it is implemented and designed correctly but normally.Galvanized mild steel is the standard and most common material used in fabricating ductwork.
There are several basic types of supply duct systems. Any one of the system types, or a combination of different types, can be utilized to fit the needs of a particular structure.The general types of supply duct systems include:
1. Radial system
2. extended plenum system
3. Reducing plenum system
4. Reducing trunk system