<Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (June 2015) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> This article relies too much on references to primary sources . Please improve this by adding secondary or tertiary sources . (June 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article relies too much on references to primary sources . Please improve this by adding secondary or tertiary sources . (June 2015) (Learn how and when to remove this template message) </Td> </Tr> <Table> (SAIL) <Tr> <Th> Type </Th> <Td> State - owned enterprise public company </Td> </Tr> <Tr> <Th> Traded as </Th> <Td> NSE: SAIL </Td> </Tr> <Tr> <Th> Industry </Th> <Td> Steel </Td> </Tr> <Tr> <Th> Founded </Th> <Td> 1964 </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Bokaro, Jharkhand, India </Td> </Tr> <Tr> <Th> Products </Th> <Td> Hot Rolled & Cold Rolled </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.sail.co.in </Td> </Tr> </Table>

Bokaro bhilai and rourkela primary known for which industry