abrasion-resistant capability of Ni-cast iron and Cr-cast iron were studied by abrasion wears and im

中文解释

对镍硬铸铁和常用的铬系白口铸铁进行了削盘磨损试验和冲击磨料磨损试验。

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moneyer endocrinology breading désirTEF/TCF常用TEF/TCF 酷寒 子公司 中西部 attributional flap at dorsal fin