... .high quality and most competitive in European market 2.Material:Plastic 3.Belt pulley, non-standard or standard ,OEM availableWhat we have ... , China(Mainland).What we manufacture and where we sell:timing belt pulleys,locking assemblies,torque limiter, gear,couplings,shaft,gears,sprockets andprocessing ... 've been ISO9001:2000 certified since 2003. Timing pulley,Timing belt pulleys