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0086279936
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0086279936
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0086279936
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0865598567
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What kind of design is good for extending the lifetime of wire-drawing dies? 2017-11-06 15:49:02
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What factors affect the hardness of spray coating in thermal spraying? 2017-11-06 14:39:49
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What factors affect the hardness of spray coating in thermal spraying? 2017-11-06 14:39:36
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