This format may also be appropriate for certain other categories of products.
此格式也可以适用于某些其它种类的产品。
One of the hottest categories of products in this year's show is wearable devices.
一个产品在今年的展会上最热门的类别是可穿戴设备。
Produce pressure vessels, pressure vessels and equipment mixed three categories of products.
主要生产压力容器, 常压容器及混合设备三大类产品。
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