Since the company established, focused on the concept of environmental protection, the folder paper selects non-toxic harmless animal protein glue.

公司自成立以来，就以环保为理念，文件夹裱糊选用无毒无害的动物蛋白胶。

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Glue: Adhesive substance resembling gelatin, extracted from animal tissue, particularly hides and bones, or from fish, casein (milk protein), or vegetables.

动物胶：从动物或鱼的皮、骨、酪蛋白中提炼出来的明胶状黏结剂。

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