... groove 3 Cone roller, taper roller 4. with pulley 5. taper of dia53 or 63 GCS drive ... or fixed.5. All rollers delivered are attached with QC inspection reports. Offer tooling designing service1. ... has single groove or double groove. Used with pulley to drive.3. Drive groove roller is in ... roller, light-duty rollers, snub roller, end roller, pulley roller, pvc roller, sprocket roller, retractable roller, ...