Conceptronics
8B, Raja Naba Krishna Street
Kolkata- 700005, West Bengal (India)
Expo Engineering Enterprise
No. 18, Rabindra Sarani, Poddar Court, Shop No. 7, Gate No. 4
Kolkata- 700001, West Bengal (India)
G. K. Enterprise
No. 86/1B, East Sinthee Road
Kolkata- 700030, West Bengal (India)
Roshan Enterprises
No. 4/4, S. B. Colony, 1st Floor, Ghosh Para Road, Lalkuthi, Barrackpore
Kolkata- 700120, West Bengal (India)
Control Devices, Kolkata
No. 9A, Hari Pal Lane, Behind Scotish Church College
Kolkata- 700006, West Bengal (India)
General Electric Motor Company
No. 12, Pollock Street, 1st Floor, Room No. 42
Kolkata- 700001, West Bengal (India)
Siren Engineering Concern
Baltikuri, Kalitala Near.-Surkimill
Kolkata- 711000, West Bengal (India)
J. M. Electronics
32/1- D, Graham Road
Kolkata- 700040, West Bengal (India)