... ,CR,SBR,IIR,HNBR,ACM,FLS,AFLS 2. Product:o ring 3. Certification:ISO9002:2009,TS16949 ,NSF ,ACS . Best ... of sealing components, the basic products are: o ring.X-Ring V-Ring.R-Ring. Y-Ring.U-Ring., Oil Seal,PU oil seals , rubber flat ... , engine parts and accessories,compression mold , etc. Company Name: Best Ring Technology Co. , Ltd. Business Type: Manufacturer Ownership Type: Joint ventureRegistered ...