At present, the ultrafine spherical alumina powder produced and sold by Sanrui Baide mainly includes two series: high-purity series and easy-to-sinter series, with four major categories of products. The high-purity series products are divided into two major categories: DC3 and DC4. The powder D50 is controllable within the range of 100 nanometers to 10 microns. The products can control the types and contents of impurities according to customer requirements, and the purity of alumina can reach up to 99.999%. The Easy sintering series products are divided into two major categories: DCS3 and DCS4. The powder D50 is controllable within the range of 100 nanometers to 5 microns. The product can control the impurity content and sintering temperature according to customer requirements, with the lowest sintering temperature reaching up to 1400℃. The high-purity series and easy-to-sinder series products can be applied to fields such as thermal conductive materials, transparent ceramics, advanced ceramics, functional fillers, grinding and polishing, ceramic 3D printing, ceramic films, lithium battery separator coatings, light diffusers, ultraviolet reflective coatings for fluorescent lamps, and oxygen sensor coatings according to their respective product characteristics.

高纯系列产品是以高纯铝（3N、4N）为原料，采用直燃法生产的超细球型氧化铝粉体材料。产品按纯度分为DC3、DC4两个大类，分别对应原料高纯铝3N、4N两种纯度。高纯系列产品根据颗粒粒度不同分为S、F、U、C、M、L五类，分别对应D50=0.15、0.15、0.25、4、8、10微米五种粒径。高纯系列产品可以根据客户不同要求进行表面改性，或以悬浮液、造粒粉供应，分别以L、S、G予以标明。

高纯系列产品纯度高，特别适用于导热材料、透明陶瓷、功能填料、研磨抛光、陶瓷膜、锂电池隔膜涂层、光扩散剂等领域，也可通过表面改性适用于不同溶剂体系。

易烧结系列产品是在原料高纯铝中添加一定量的促烧结成分后，采用直燃法制成的超细球形氧化铝粉体材料，产品比高纯系列大幅降低了粉体的烧结温度，从而更易得到高致密性材料。产品按杂质含量分为DCS3、DCS4两个大类，分别对应原料高纯铝3N、4N两种纯度。易烧结系列产品根据颗粒粒度不同分为F、U两类，分别对应D50=0.15微米、D50=0.25微米两种粒径。易烧结系列产品可以根据客户不同要求进行表面改性，或以造粒粉供应，分别以L、G予以标明，也可根据客户要求进行烧结温度的调整。

易烧结系列中DCS300、DCS400规格是不添加促烧结成分，采用全新的表面活化技术的直燃法超细球形氧化铝粉体材料，新的活化技术在保留粉体高纯度的同时可以大幅度降低高纯球形粉体的烧结温度，达到与添加促烧结成分类似的烧结效果，特别适用于对纯度有高要求的场合。

易烧结系列产品烧结温度低、烧结密度高，材料填充率高、流动性好，特别适用于透明陶瓷、先进陶瓷、陶瓷3D打印、陶瓷膜等领域。