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| |
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Certificate of national patent on bearings for continuous rolling and casting mill, the No. is ZL2007 2 0092342 |
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Certificate of qualified measurement |
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Certificate of quality management system in accordance with ISO9001:2000 |
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Total6 1/2    |
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| 2010-6-23 |
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| 2010-5-6 |
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| 2010-4-23 |
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