1.  IBR Boiler Manufacture

2.  IBR Pressure vessels manufacture

3.   Piping Fabricators

4.  Boiler & Pipeline Erectors

5.  Boiler & Pipeline Repairers

6.  Steel Plate Manufactures

7.  Steel Tube Manufactures

8.  Steel Pipe Manufactures

9.   Pipe Fitting Manufactures

10.  Mounting Manufactures  Viz.: Safety Valves, Stop Valves etc