3B
3B or 3-B may refer to:
Third baseman
Triple (baseball)
3B Computers, a range of computers produced by AT&T during the 1980s
3B Junior, a department of the Japanese entertainment company Stardust Promotion
3B Lab, a Japanese popular music group
Three Bs, a designation for three well-known classical composers
3B, a very soft grade of pencil lead
3B may refer to:
SOS
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