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- · 2017. 1. 4. · (200mmX200mm) -o. 15 05 1.9 1.8¾2.1 1904 27 26N31 180 O. 03g (MPa) 2016...
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· 2017. 1. 4. · (200mmX200mm) -o. 15 05 1.9 1.8¾2.1 1904 27 26N31 180 O. 03g (MPa) 2016 (GB/T4100-2006 G) > 18 ±
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