spacer 1,high quality and low price 2, ... experience for 20 years Circular slitting blade, Rubber bonded spacer ,Spacer Scrap chopper knife,Separating disc ,Straight cutting blade,Characteristics ... different customers.To the circular slitting blade, steel core, spacer with OD less than 200mm, their flatness and parallelism ... controlled within 2µ, thickness could be within +~-1µ. spacer of excavator gear