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Rotary Percussion Drill series
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PS wire line sampling method
Continuous impact dynamic penetration test
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Big Man Rock Mall Construction Method
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Small diameter steel pipe pile micro pile method
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2021.12.24
News
New Year’s Holiday Closing Notice
2021.10.12
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We start Facebook
2021.02.04
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Our activity in Africa appear in the JICA’s newsletter “Handwashing News”
2020.09.08
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CHINA ROCK 2019
2020.09.01
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Renewal of web site
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