D. C. Engineering Co.
No. 122 / 1 - A, A. P. C. Road, Near Manicktala Junction
Kolkata- 700006, West Bengal (India)
Golden Engineering Works
No. 3, Onrait, 2nd Lane, Entaly
Kolkata- 700014, West Bengal (India)
Tecmac India
Narayan Residency, 327, Bidhan Pally
Kolkata- 700084, West Bengal (India)
Mecon
No. 440, Indira Gandhi Road, Konnagar
Hooghly- 712235, West Bengal (India)