What does PH stand for?
PH stands for "Pencil Hardness"
How to abbreviate "Pencil Hardness"?
"Pencil Hardness" can be abbreviated as PH
What is the meaning of PH abbreviation?
The meaning of PH abbreviation is "Pencil Hardness"
What does PH mean?
PH as abbreviation means "Pencil Hardness"
