Youqi UPH‑type oil seals are round‑shaped sealing components made of NBR and FFKM. Working temperature ranges from ‑30℃ to 220℃, delivering long service life under operating conditions. Available in standard specifications and custom sizes to satisfy diverse requirements. Multiple color options including black, white, brown, green and blue are optional. Samples are available upon request. Mainly applied for automotive sealing scenarios. Manufactured in Shanghai, China with competitive and reasonable latest price. Well‑structured for easy installation and reliable sealing performance, these UPH seals work steadily for hydraulic cylinder reciprocating motion. Custom dimensions are supported for non‑standard working conditions.