1. Water proof cv joint boot 2. Aging resistant. 3. Certification: ISO9001:2008,TS16949,ROHS, ... etc. 4. OEM/ODM highly welcomed. Rubber cv joint boot descriptions: 1. Materials: EPDM, NBR, SI, HNBR. ACM, SBR ... as your request. 2. Good elasticity and good resistance to compression deformation. 3. Performance: excellent aging resistant, chemical resistant, water proof ...