We can offer both PU and Rubber double sided timing belt. Teeth type: DMXL,DXL,DL,DH,D5M ... V Belt, Raw Edge Cogged V Belt, Wrapped V Belt, Double V Belt, Narrow V Belt, Ribbed V Belt(PK,PJ ... ,PH,PL ribbed belt), Industrial Timing Belt( rubber timing belt, PU timing belt, Double side timing belt, open end timing belt), ... timing belt, Perforated Belt and Extral long endless belts. Double side timing belt