What does OPK stand for?
OPK stands for "Operator Protect Key"
How to abbreviate "Operator Protect Key"?
"Operator Protect Key" can be abbreviated as OPK
What is the meaning of OPK abbreviation?
The meaning of OPK abbreviation is "Operator Protect Key"
What does OPK mean?
OPK as abbreviation means "Operator Protect Key"
