The invention of the ball built-in and built-out homojunction, the whole density homogeneity and locate accuracy in steel liquid.
本发明内外均质，整球密度均匀，在钢液中定位准确。
The invention of the ball built-in and built-out homojunction, the whole density homogeneity and locate accuracy in steel liquid.
本发明内外均质，整球密度均匀，在钢液中定位准确。
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