Youtube activity of "박대영" (@%EB%B0%95%EB%8C%80%EC%98%81-y5j) on "X-Machines" channel.
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Comments by video
"Hypnotic Manufacturing Process Of Electric Motor and Rotor Winding Machine. Engine Assembly Line"
"Hypnotic production process of alloy wheels by casting method and truck wheels by welding method"
"Korea's Incredible Submarine Building Technology. Amazing Skilled Welders Work At The Shipyard."
"The Manufacturing Process Of Straightening Machines For Flat Rolling Mills"
"The World's Largest Bevel Gear CNC Machine- Modern Gear Production Line. Steel Wheel Manufacturing"