JOO SUNG ENGINEERING, INC.

    Duct 

- powe tech

    Duct 

- poweR tech

Exhaust fan

- AJIn

Cooling air   Duct & Insulation - power tech

fan installation

- power tech

Exhaust line Duct

- power tech

Cooling air   Duct & Insulation - power tech

Dust Exhaust

- power tech

blowe duct system

- power tech