Tianjin Adar Ltd. (www.yada-mfj.com) is located in Tianjin Nankai District Miyun Road, South Road, Hardware City, a district 17 103, Contact: Mr. Ma a seal The best stored at room temperature below 30 ℃, avoid high temperature seals aging; 2 seals must be stored in a sealed package, avoid moisture in the air or dust exposure; 3 seals must avoid glare, avoid sealing pieces are air ozone erosion or early aging. Various sealing performance factor is the different skf seals company, such as mechanical seals (packing, etc.) factors are temperature, medium, wear, exposure to stress. O-type O-ring cross section, a simple shape Tianjin skf seal material is rubber, polyurethane skf seal wear better price, so the hydraulic system is mainly used for static sealing. YX-ring: YX-ring with a cross-section width to height ratio greater than 2, and based on the use of the stability requirements skf seals, YX-ring work lip shorter than the non-working lip, which is divided into hole YX YX-ring and shaft ring, not roll when YX-ring to use, so YX-ring suitable for high-pressure, high-speed hydraulic cylinder selection.