... treatment2Bushing,SleeveGate Number(Steel,Aluminum or other material)OD,ID,Length,Roughness,Concentric,or other requiremntZinc plating,Oxide, ... Number(Steel,Aluminum or other material)Basic Dimensions,thickness,platness and other requirementPlating,Polish or other finish ... Number(Steel,Aluminum or other material)Basic Dimensions,thickness,platness and other requirementZinc plating,Oxide,Anodize or ...