* Playlist *
00:00 Process of making ball bearings. Korean old bearing manufacturing factory
11:00 Process of making ultra-high-strength concrete pile. Korean No.1 PHC pile factory
22:18 Process of making a modern tractor rotavator. Korean agricultural machinery manufacturing factory
38:14 Process of making Korean traditional bamboo bow. Korean best bow master
50:20 Process of making Korean traditional bamboo bow. Korean best bow master

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I would like to express my gratitude to the CEO for helping with the production of the video, and I would also like to express my deep gratitude to the enthusiasm of the engineers.

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