What does SUM stand for?
SUM stands for "Shallow Underwater Missile"
How to abbreviate "Shallow Underwater Missile"?
"Shallow Underwater Missile" can be abbreviated as SUM
What is the meaning of SUM abbreviation?
The meaning of SUM abbreviation is "Shallow Underwater Missile"
What does SUM mean?
SUM as abbreviation means "Shallow Underwater Missile"
