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It is known that non-rupture test, such as the hardness test, an be used to replace rupture tension test on iron and steel casting. 鋼鐵鑄件用非破壞性的硬度檢驗代替破壞性的抗拉強度檢驗并在生產(chǎn)中應(yīng)用，國內(nèi)外均已有報導(dǎo)。