- Harishrum Engineers Pvt. Ltd.
- helicalcoil inserts, wire thread insert, tap & gauges, insert fixing tools, screw heliform helixerts, heliserts, fastman gripp stainless steel inserts,self locking inserts,,Helicoil Inserts Group, ....
- Address:33/1, N.S. Road, 56 Marshall House, Kolkata, West Bengal, India