类别层次结构提供了根据不同用途组织产品的能力。
A category hierarchy provides the ability to organize products for different purposes.
每小时根据不同用途收费，详情请联络我们。
Please contact us for hourly rates. Charges varies according to usages.
客户可根据不同用途选用各种牌号的环氧树脂产品。
Customers can choose different brands of products according to their application.
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