What does ppm stand for?
ppm stands for "Plumb Pekin Mine"
How to abbreviate "Plumb Pekin Mine"?
"Plumb Pekin Mine" can be abbreviated as ppm
What is the meaning of ppm abbreviation?
The meaning of ppm abbreviation is "Plumb Pekin Mine"
What does ppm mean?
ppm as abbreviation means "Plumb Pekin Mine"
