What does OBF stand for?
OBF stands for "Oil-Based Drilling Fluid"
How to abbreviate "Oil-Based Drilling Fluid"?
"Oil-Based Drilling Fluid" can be abbreviated as OBF
What is the meaning of OBF abbreviation?
The meaning of OBF abbreviation is "Oil-Based Drilling Fluid"
What does OBF mean?
OBF as abbreviation means "Oil-Based Drilling Fluid"
