Anil air tech engineers pvt ltd is an iso 9001-2000 certified trader engaged in offering a wide range of compressor spare parts and replacement parts for ingersoll rand & kirloskar brand. Anil air tech engineers pvt ltd offers piston rings/ rider rings thermoplastics, carbon filled ptfe and bronze filled ptfe. The company also offers unloader piston rings, in glass filled ptfe and bronze mettalic rings. Piston / rider rings are used in lubricated and non lubricated compressor units. The salient features of these piston rings are: