What does HDR stand for?
HDR stands for "Horizontal Drilling Regulations"
How to abbreviate "Horizontal Drilling Regulations"?
"Horizontal Drilling Regulations" can be abbreviated as HDR
What is the meaning of HDR abbreviation?
The meaning of HDR abbreviation is "Horizontal Drilling Regulations"
What does HDR mean?
HDR as abbreviation means "Horizontal Drilling Regulations"
