Antirust oil WD-40:1, remove rust 2, dehumidification 3, rust solution 4, lubrication 5, clean WD-40 antirust lubricant - six big ... and air, achieve long-term antirust effect.[ applicable scope ]WD-40 applies to any electronic precision instruments ( such as missile ... or impurities, prompted the current smooth stability.[ applicable scope ]WD-40 can make a lot of electrical equipment running smoothly ...