Surya Engineering Co.
2, Dr. R. N. Tagore Road, Dunlop & Dakhineshwar
Kolkata- 700076, West Bengal (India)
Chem Maco
408, Jessore Road, Bus Stop, Barat Colony
Kolkata- 700055, West Bengal (India)
Bien Artium Natural Science Pvt. Ltd.
6, Mangoe Lane
Kolkata- 700001, West Bengal (India)
Hindtech Engineering Company
No. 38/1- E/2, Kashinath Dutta Road Cossipore
Kolkata- 700036, West Bengal (India)
Friends Engineering Works
No. 80/3, Kali Nath Ghosal Road, Ariadaha
Kolkata- 700057, West Bengal (India)