本产品由环保PP材料制成，版面平整，手感舒适，具有良好的耐热性, 韧性。使用高频压合工艺，坚固耐用。A按扣设计。牢固紧密。让您轻松归纳分类整理文件。

This product is made of environmental protection PP material, flat layout, comfortable handle, good heat resistance and toughness. Using high frequency pressing technology, it is durable. A snap design. Firm and tight. It makes it easy for you to summarize and sort out documents.