Allodizing is a method of corrosion protection by the formation of a hard, airtight oxide coating on the surface of aluminum alloy parts by chemical means. ( )
A.The oxide coating on the surface of aluminum alloy parts can be formed by physical means. B.The oxide coating on the surface of aluminum alloy parts acts the function of corrosion protection. C.The aluminum alloy can protect the oxide coating from corrosion.正确答案B
