R.R. Medi Engineering
32/5, Canal South Road, Tangra
Kolkata- 700015, West Bengal (India)
J. K. Steel Corporation
No. 22, Rabindra Sarani, G - 457 & G - 46, Tiretta Bazaar
Kolkata- 700073, West Bengal (India)
Unison Corporation
No. 64, B. B. Ganguly Street
Kolkata- 700012, West Bengal (India)
Shiva Steel
No. 1/2 A, Raja Gopi Mohan Street, Manicktala
Kolkata- 700006, West Bengal (India)
United Engineers
A 2, K.C. Avenue, Opposite WBSEB Power House, Garia
Kolkata- 700084, West Bengal (India)