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Did what I always wanted to do

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Isn't this a perpetual motion machine?

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This is the first time I saw a hydraulic press fail.

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[HZK Special Photo] The Fire Rescue Team's all-mechanical debut in the venue must-kill collection (e

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Gear rings are like life, let the good life roll on

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Far more than the average family car? A palm-sized inline four! The whole process of assembly!

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【alightmotion】Free project sharing

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(Lin Guoer) Repairing a 1980 Dongfangfen tractor.

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The infrastructure madman shows his skills! Self-built "cross-river bridge" has opened to traffic

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