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Home Uncategorized What kind of plastic bags are used and how are they sealed, like hot pressing.

What kind of plastic bags are used and how are they sealed, like hot pressing.

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in fact, bone blowing self sealing bag is the cheapest to make this kind of bag. If the requirements for loading products are not high, the thickness of the bag can be appropriately reduced, and the cost will naturally come down.

it can be directly made into a convenience bag, which is very convenient to tie and buckle. The one on your picture seems to be made of tin foil

I just make concave convex self sealing bags, hehe

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