Rubber `O` Rings are made using CEMILAC and DGCA approved compounds of nitrile rubber, neoprene rubber, silicone rubber, EPDM, viton rubber, polyurethane rubber and fluorosilicone. Rubber `O` Rings are manufactured by Elastomeric Engineers which is an ISO 9001:2000 accredited company. Elastomeric Engineers also manufactures various types of aerospace rubber products. The Rubber `O` Rings are manufactured as per international standards in facilities equipped with latest and advanced machinery.