... , mechanical, industrial, trains, motorcycles, trucks, buses, and so on.1. Products Name: Differential Oil Seals2. ... :Item NameDifferential Oil Seals Or Axle SealsSizeCustomized/standard and nonstandardMaterialNBR, EPDM, SILICONE, FFPM, PTFE, etc ... ColorRed, Black, White, Clear, etcFeaturesAging-resistant; Acid and alkaline resistant;Airtight; Shock absorption, etc.OEM/ODMWelcomeCertificateCE, ...