Swarna Oil & Gas Field Private Limited
Rajarhat
Kolkata- 700001, West Bengal (India)
Das Industries
No. 15, Nanda Mallick Lane Near Girish Park, Metro Station
Kolkata- 700006, West Bengal (India)
J.S. Engineering Works
No. 10/5, Thakur Das Dutta 1st Bye Lane, Kadamtala
Kolkata- 711101, West Bengal (India)
Emcon Industries
No. 14/2, Old China Bazar Street, 4th Floor, Room No. 405
Kolkata- 700001, West Bengal (India)