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GB/T 229-2007 ¡¶½ðÊôÖÊÁÏÏıȰڴ¸¹¥»÷ÊÔÑéÒªÁì¡·
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ASTM E23-12C¡¶Standard test methods for Notched Bar Impact Testing of Metallic Materials¡·
ISO148:1998 ¡¶Metallic materials-Charpy pendulum Impact test¡·
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