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Raw material to make paper straw
To make paper straw, food grade paper roll is required, the paper straw is made by 3 layers paper ， inner and middle layers are usually 120gsm paper, and 60gsm paper is commonly used as outer layer.
Food safety glue, glue each layers of paper straw together. Good glue could improve durability of paper straw in hot drinks, and not make straw easily moldy.
Ink for outer layer of paper straw printing, various color availbale. Also food grade.