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

Decompression video of the skilled worker series!

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Grandpa made 100 million out of wood. It’s amazing.

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This fish is really hard to deal with!

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This time the triangular cake pot was cast very successfully.

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A secret compartment for hiding private money

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Why do rock slabs need to be broken manually? #Science #Unzip #Construction #Cool Knowledge

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The working people are so smart!

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Why does the drill bit of a horizontal directional drill spray water? #Science #StressRelief #Horizo

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Mountain snowfields, seafood feast!

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Use inertia to remove parts. #PopularScience #Unzip #Inertia #SlidingHammer

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I have a mirror.

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Why does the bearing emit "hot air" when installing it? This is the interference fit installation me

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Two kick launchers

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The process of turning gold into a gold necklace and feeling its excellent ductility...

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Thailand's heartfelt advertisement: There's more to the world than just love

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Rolling shutter on-site construction and production

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Practical Home Repair Tips

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Share 11 practical locks, which ones have you used? #lock #hard and durable #practical tools #popula

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36 Views

What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

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53 Views

Knot tying method left by the ancients

dashulaisheji

25 Views