The key equipment of a pilot plant to produce ultra-fine tourmaline powder with jet mill and stirred ball mill is described.
本文主要利用以气流磨和搅拌磨为主体的超细粉碎中试线，对电气石超细粉体的制备工艺进行了探讨。
This new type pilot cold rolling mill has been used successfully.
该新型冷轧实验轧机已经成功投入使用。
This new type pilot cold rolling mill has been used successfully.
该新型冷轧实验轧机已经成功投入使用。
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