Kumar Techno Refractories Mfg. Co. Pvt. Ltd.
K-70, Howrah Industrial Estate Baltikuri, Near Ati Dasnagar
Howrah- 711113, West Bengal (India)
Dutt & Co.
11/A, B. T. Road
Kolkata- 700056, West Bengal (India)
National Refractories (A Unit Of Snowtex Udyog Limited)
F - 3, Circular Mansion, 222, A. J. C. Bose Road
Kolkata- 700017, West Bengal (India)
Standard Electric Company Kolkata
No. 2, Manook Lane
Kolkata- 700001, West Bengal (India)
Kalyani Systems
57, N. S. B. Road (Near Tarbangla More)
Raniganj- 713347, West Bengal (India)