Ets Intarlaken Technologies
5th Floor, No. 117, BT Road
Kolkata- 700108, West Bengal (India)
R.S.Scientific
A- 28, Gostotala New Scheme, Garia
Kolkata- 700084, West Bengal (India)
RaRiA Scientific Instrument Company
No. 114- B, C. R. Avenue Near Calcutta Medical College
Kolkata- 700073, West Bengal (India)
Bhupendra Shah & Co.
No. 44, Ezra Street
Kolkata- 700001, West Bengal (India)
Techno Trade Engineering Co.
No. 285/B, B. B. Ganguly Street
Kolkata- 700012, West Bengal (India)