Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge

Decompression video of the skilled worker series!

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Speed Bump Worker Series

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Those are super cool machines!!

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Husky|Funny Choreography

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How heavy is the tamping machine's hammer? #PopularScience #Unzip #TampingMachine #LayingFoundations

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Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe

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"The tiger in question strongly demands that the video be deleted"

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Today's stress-relief video!! An astonishing workplace scene~

jixiepangke

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Crowded Subway (HD Version)

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Irresistible mechanical charm~

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Decompression video of the workers series!

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Why do honey collectors only harvest a small portion of the hive when harvesting honey at high altit

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Come take a look at the amazing work site!!

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

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Speed Bump!! Cool Mechanical Series 6.17

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Man speed bump!! Skilled worker series~

jixiepangke

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Men's speed bumps: those cool machines~

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Let's take a look at the amazing workplace of skilled workers 9.2

jixiepangke

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When shoeing a horse, why do we use red-hot horseshoes to burn the hooves?

haoqiwanhuatong

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High Voltage Toys 8

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