1) n plus 750 (Protective Lubricant)
 It is a kind of lubricant whose corrosion endurance is high and it protects the metal after black oxidation. Protective lubricant can also be used after zinc phosphate and manganese phosphate.

 2) n plus 760 (Protective Lubricant)
 It is a kind of lubricant whose corrosion endurance is high and it protects the metal after black oxidation. Protective lubricant can also be used after zinc phosphate and manganese phosphate.