How to drill a triangular hole? - Rong Mama talks about industrial science and mechanical structure

Wear women's clothes once, and you will know how many perverts there are abroad

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Why Aren't All Airplanes Painted in Color? - Auntie Rong's Aviation Science Lesson

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Come and see the all-capable working people!

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Dice CNC Machining

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Sculpture is an art

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Thanks, master, you really have a wild imagination! It's better to have a clever mind than just brut

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Learn a little electrical knowledge every day

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Harmonic Drive Reducer

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Pulling out tree roots does not relieve stress

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Car Disassembly Video

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Man's Speed Bump: Obsessive-compulsive Worker

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Why is the blade of a gantry shear angled? #Science #StressRelief #HeavyMachinery #GantryShear #FunF

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If time could go back, which year would you most like to go back to?

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Men's Speed Bumps: Exciting Machinery

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As long as you find the right method, your work can be twice the result with half the effort.

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Gear machining: Why only a tiny bit of cutting is required? #Science #Unzip #Machinery #ExtremeComfo

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Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief

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Super cool mechanical series of speed bumps! 7.18

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The man as a speed bump: the skilled worker

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Japan's ride-on humanoid mecha is now on the market

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