What does PPD stand for?
PPD stands for "Paraphenylene-Diamine"
How to abbreviate "Paraphenylene-Diamine"?
"Paraphenylene-Diamine" can be abbreviated as PPD
What is the meaning of PPD abbreviation?
The meaning of PPD abbreviation is "Paraphenylene-Diamine"
What does PPD mean?
PPD as abbreviation means "Paraphenylene-Diamine"
