(M)ost metals form an oxide layer when exposed to oxygen. Some are bad, but some "passivate" the surface, protecting it from corrosion (e.g., aluminum)
END OF SUMMER PROMO, ONLY $6! I'm the next door latina milf you always fantasized. I'm gonna give you a peek of my sex and personal life. All my content included with a single subscription (IT'S NOT JUST PORN, IT'S REAL LIFE). Follow the link in the
