Revisiting Table tennis Robot
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11:10
Philately -Retro First Day covers Preservation
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16:27
Tentando fazer o menor motor elétrico do mundo*
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4:02
Homemade Ping Pong Robot
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15:08
Watchmaking: Machining a Watch Gear
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30:29
Engenhosos Profissionais da Construção que Estão em Outro Nível
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9:27
Self made Table Tennis Robot
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9:29
HD thay bánh xe cao su bắn bóng cho máy tập bóng bàn HIEPASC
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23:25