1.Timing pulley is of high quality 2. Non-standard, OEM available 3.Good quality raw material, precision machining Timing pulley, ... bearing, timing tensioner, steel sheave, conveyor pulley are high quality and most competitive in market.Features:Teeth Type: MXL,XL,L ... :1045 carbon steel, aluminum alloy frequently used,brass and nylon available.Surface treatment:black oxdizing,phosphating,anodize,zinc ...