因为如果货品可被归类到前一组品目中，8454.30.0090和8479.81.0000品目应该被排除

The applicable subheading for the magnesium powder making plant will be 8419.89.9585, HTSUS, which provides for machinery, plant…whether or not electrically heated, for the treatment of materials by a process involving a change in temperature such as heating,…or cooling,…: other machinery, plant or equipment: other: other: other, other: for other materials. The rate of duty will be 4.2 percent ad valorem.

适用于镁粉生产线的是8419.89.9585 美国税则。用于利用温度变化处理材料的机器、装置及类似的实验室设备，……，不论是否电热的……：其他机器，生产线或设备：其他：其他：其他，其他：用于其他材料。关税税率百分之4.2,根据价值

Duty rates are provided for your convenience and are subject to change. The text of the most recent HTSUS and the accompanying duty rates are provided on World Wide Web at http://www.usitc.gov/tata/hts/.

（这里）提供的关税税率是便利的目的可能会改变。 最新的条文内容和关税税率以下网站有提供http://www.usitc.gov/tata/hts/

This ruling is being issued under the provisions of Part 177 of the Customs Regulations (19 C.F.R. 177).

这个（分类）裁决是根据of Part 177 of the Customs Regulations (19 C.F.R. 177) 的条文颁布的。