Unique Instruments Corporation
No. 41, B. B. Ganguly Street, Near Central Metro Station
Kolkata- 700012, West Bengal (India)
United National Scientific Co.
No. 16/1- B, Prankrishan Mukharjee Road, Near Tala Post Office
Kolkata- 700002, West Bengal (India)
Sunny Engineers & Associates
187, Tarakeswar Pally, P. O. Angus District Hooghly
Bhadreswar- 712221, West Bengal (India)
Hi-Tech Scientific Equipments
H. O. No Surotirtha Apartment, Ground Floor, AA-7/1, Dakshin Arjunpur, P. O. Deshbandhu Nagar Baguiati
Kolkata- 700059, West Bengal (India)
Supercritical Solutions
298, Boxibagan, P. O Santragachi
Howrah- 711104, West Bengal (India)