China Hardmetals--Sampling GB Standards Search Result |
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GB/T 6885-2020 Hardmetals--Sampling and testing method of mixed powders 硬质合金 混合粉取样和试验方法 - 中英文版 |
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GB/T 6885-1986 Hardmetals--Sampling and testing of mixed powder 硬质合金 混合粉取样和试验方法 - 中英文版 |
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