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[求助] ASTM STP1248 Pendulum Impact Machines: Procedures and Specimens for Verification |
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发表于 2018-5-30 09:50:55
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发表于 2018-5-30 11:48:20
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发表于 2018-6-3 16:24:19
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发表于 2018-6-7 11:34:30
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发表于 2018-6-8 08:42:44
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