What does STO stand for?
STO stands for "Standards for Thick Overburden"
How to abbreviate "Standards for Thick Overburden"?
"Standards for Thick Overburden" can be abbreviated as STO
What is the meaning of STO abbreviation?
The meaning of STO abbreviation is "Standards for Thick Overburden"
What does STO mean?
STO as abbreviation means "Standards for Thick Overburden"
