RE: 베어링 윤활 [열화상으로 본 정상적인 마찰 과 비정상적인 마찰]

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베어링 윤활 [열화상으로 본 정상적인 마찰 과 비정상적인 마찰]

in lubrication •  5 years ago 

Congratulations @kai601! You received a personal award!

Happy Birthday! - You are on the Steem blockchain for 1 year!

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Vote for @Steemitboard as a witness to get one more award and increased upvotes!
lubrication
5 years ago by

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