What does NPK stand for?
NPK stands for "Nippon Kogaku"
How to abbreviate "Nippon Kogaku"?
"Nippon Kogaku" can be abbreviated as NPK
What is the meaning of NPK abbreviation?
The meaning of NPK abbreviation is "Nippon Kogaku"
What does NPK mean?
NPK as abbreviation means "Nippon Kogaku"
