国泰工业集团是世界颜料工业的领导者之一，也是第三大合成氧化铁颜料生产商。
Cathay Industries Group is one of the world's leading manufacturers in color industry, being ranked as 3rd largest manufacturer of synthetic Iron Oxides.
研究了纳米氧化铁颜料的制备工艺，采用超声振荡和固相法相结合的方法合成纳米氧化铁。
Through orthogonal experimental design, the preparation of iron oxide nanometer particles by ultrasonic-solid phase reaction was studied.
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