Anil Air Tech Engineers Private Limited supplies Thermoplastic/ Cast Iron made Piston Rings/ Wearing Rings. Anil Air Tech Engineers Private Limited is an ISO 9001:2000 recognized company. Anil Air Tech Engineers Private Limited offers wide ranges of pistons & cylinders, connecting rods, cross head, valve & valve parts, piston rings/ rider rings, `O` rings & gaskets / oil seals, piston rod & oil scrapper ring, air receivers etc. Thermoplastic/ Cast Iron made Piston Rings/ Wearing Rings is durable and available in perfect roundness.