insulating refractories 中文意思是什麼
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1902 - 704 methods of testing refractory materials - unshaped refractories used in monolithic construction - preparation of test pieces from insulating castables method 1902 - 704
耐火材料試驗方法.第7部分:整體結構用未成形耐火材料.第4節:隔離澆注試件制備
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