How tennis balls are made

"So, Mei-Ping, what do you do for work?"

"Oh, I turn tennisballs the right way up, two at a time"
 
Stybar said:
"So, Mei-Ping, what do you do for work?"

"Oh, I turn tennisballs the right way up, two at a time"

I really hope the factory workers switch between jobs sometimes.
 
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