Sorry, probably showing my age.
CRC was at the time, the generic term we used for the penetrant/lubricant, basically rust buster that we used in the shop I worked in 40 years ago.
Worked great then, works great now.
Guess they expanded their line of products in the last 4 decades

Kind of like "Liquid Wrench", we also used their penetrant, but they make other products. Just another shop term from back in day!