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

in #lubrication • 6 years ago

Congratulations @kai601! You received a personal award!

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

You can view your badges on your Steem Board and compare to others on the Steem Ranking

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