PTFE Coated O-Rings by Puja Seals in Pune, India – ideal for high-temperature, chemical-resistant sealing in industrial, pharma, and food-grade applications. PUJA Fluid Seals Pvt. Ltd. is a frontrunner PTFE Coated O Rings manufacturer headquartered at Pune, India, with over 2 decades of experience providing high-performance sealing solutions in demanding circumstances.