Hazra Engineering Concern
95/1, Makardah Road, Shanpur Kalitala
Howrah- 711101, West Bengal (India)
B.S. Enterprise
BG-07, Sector-2, Salt Lake City
Kolkata- 700091, West Bengal (India)
Shankar Engineering & Trading Co.
No. 6- A, Kiran Shankar Rai Road
Kolkata- 700001, West Bengal (India)
Ma Tara Enterprise
Dharsa Mullick Para, Near Azad High School, Baltikuri
Howrah- 711113, West Bengal (India)
Shree Jagannath Iron Foundry (p) Ltd.
P-200, Benaras Road
Howrah- 711108, West Bengal (India)
Rohini Iron & Steel
2, R.N. Tagore Road
Kolkata- 700076, West Bengal (India)
S. K. Das & Brothers
No. 212/ 1/ 2, Panchanantala Road
Howrah- 711101, West Bengal (India)