GB/Z 38434-2019 金属材料 力学性能试验用试样制备指南
标准号:GB/Z 38434-2019标准名称:金属材料 力学性能试验用试样制备指南英文名称:Metallic materia ls-Guide to test...
国家标准2023.08.10
标准号:GB/Z 38434-2019标准名称:金属材料 力学性能试验用试样制备指南英文名称:Metallic materia ls-Guide to test...
国家标准2023.08.10
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