Shrijee Heavy Projects Works Ltd manufactures Wind Ventilator with 16 vanes. Shrijee Heavy Projects Works Ltd also manufactures various types of Aluminium Wind Ventilator, Alu-Zinc Wind Ventilator and Stainless Steel Wind Ventilator. The Wind Ventilator with 16 vanes is used in sewage pipe, sanitary tank pipe, mobile toilet, chimneys etc. To prevent formation of Green House Gases.