Stomatal, dispersed shrinkage, shrinkage cavity, sonim and slag inclusion belong to this kind of defect.
于这种类型的缺陷有气孔、缩松、缩孔、夹砂、夹渣等。
Stomatal, dispersed shrinkage, shrinkage cavity, sonim and slag inclusion belong to this kind of defect.
于这种类型的缺陷有气孔、缩松、缩孔、夹砂、夹渣等。
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