... quality, reasonable price 3. No noise, high efficiency NOVO's timing pulley:1. Plain bore: MXL, XL, L, H; T2.5 ... province, China(Mainland).What we manufacture and where we sell:timing belt pulleys,locking assemblies,torque limiter, gear,couplings,shaft,gears ... offer you:power transmission components at a competitive price and of good qualityCertification:We've been ISO9001:2000 certified since 2003 ...