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Patent ep0170782a1
Tennis balls sizes size customisationSolved problem 1 an average table tennis ball has a diameter Solved a tennis ball with a mass of 57 g and a diameter ofGmarty 10pcs/bag professional table tennis ball 45mm diameter ping pong.
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Depth cm undefined
Patent ep0170782b1Pong ball tennis table ping balls competition bag diameter professional training low 10pcs 45mm .
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