O Ring Manufacturer in India O Ring Manufacturers begin the process by carefully selecting materials like rubber or elastomer. Through molding or extrusion, the material is given a distinctive circular shape. Three molding processes produce O rings - compression, injection, and transfer. Later, the material is introduced to the curing process, which enhances the durability and uniformity of the o rings. The final stage of the o ring manufacturing involves the stringent quality check and testing of the o rings, which comes out as the final product. This systematic approach guarantees the production of premium quality O rings, ensuring robust sealing solutions.