Unique Instruments Corporation
No. 41, B. B. Ganguly Street, Near Central Metro Station
Kolkata- 700012, West Bengal (India)
Industrial Supply Syndicate
32 & 54, Ezra Street
Kolkata- 700001, West Bengal (India)
RaRiA Scientific Instrument Company
No. 114- B, C. R. Avenue Near Calcutta Medical College
Kolkata- 700073, West Bengal (India)
Techno Trade Engineering Co.
No. 285/B, B. B. Ganguly Street
Kolkata- 700012, West Bengal (India)
Varun Enterprises
No. 33/1, Netaji Subhas Road, First Floor, Room No. 137, Marshall House
Kolkata- 700001, West Bengal (India)