Junhua offers high-performance PEEK seal products (support sealing rings, insulating rings, retaining rings, valve seats, etc.) with 175℃/1000h strength retention, 300x higher creep resistance than PTFE, and 250℃ high-temp insulation. Suitable for oil logging, ESP submersible pumps, petrochemicals, withstanding H₂S/CO₂ corrosion, replacing metals/PTFE to reduce costs & boost reliability.