
Voneseals Hydraulic Back-up Ring Designed to Prevent O-Ring Extrusion in High Pressure Sealing Systems. Full Customization Support: Customization available from samples, designs, and drawings with flexible options. Wide Material Selection: Available in PU, PTFE, rubber (NBR/FKM), and composite materials. OEM and ODM Services: Professional OEM and ODM services provided for nonstandard products. Free Sample Availability: Free samples available for testing and quick supply upon request. Global Export Experience: 8 years of export experience serving markets in North America, Europe, and Asia. Strict Quality Control: 100% inspection including visual and function checks with 24 QA/QC inspectors. Fast Delivery Capability: Lead time within 15 workdays during peak and off-peak seasons. On-Site Service Support: On-site services and regular customer visits provided when needed.