Power transmission parts None standard or standard Chain sprocket (plate wheel) ISO9001 aproved High quality Power transmission sprocket (Carbons Steel C45, CAST IRON)ProcedureForging, Maching, Hobbing, Broaching, Driliing, Milling, GroundingSurface TreatmentHeat Treatment, Black Oxide Finished, Zinc Plated, Phosphating, PaintingIn Different Colour KINDS OF STANDARD or NON-STANDARD SPROCKET and ...