very Lovely open-grained pig iron的意思|示意

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非常可爱的开粒生铁

伟晶生铁 ... very open-grained pig iron 伟晶生铁 ; 极粗晶生铁;伟晶生铁 very Lovely open-grained pig iron 伟晶生铁 Micro-fine grained mixture iron ore 微细粒混合铁矿石 ...