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產品描述:硫酸鋇原礦中精選加工而成,比重在4.0—4.2之間,顯白色或黃色,粒度≥325目,硫酸鋇含量≥90%,是放射機房室內常用的材料。

硫酸鋇原礦中精選加工而成,比重在4.0—4.2之間,顯白色或黃色,粒度≥325目,硫酸鋇含量≥90%,是放射機房室內常用的材料。

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办公室添的我好爽视频免费
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