... ,Name:Alloy steel finger for auger header assembly ,Alloy steel finger,Auger header assembly finger2,For the similar finger, ... 2),Ability for the surface finish: ElectroplateZinc plated(while,colour,dacroment),Nickel plated,copper plated,gold plated, ... Polishing Grinding and polishing,etc,except mirror finish (3),Ability for the tolerance Roundess0.002mmCylindricity0.003mmRoughnessRa0.32Straightness0.01 ...