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HDPE is a highly durable plastic that is resistant from natural corrosion such as water, wind, acid rain... to the erosion of solutions such as concentrated acids, alkalis, salts,…
Furthermore, the HDPE plastic material is resistant to ultraviolet rays from direct sunlight.

This type of plastic is commonly used to make hard plastic bottles such as milk jars, shampoo bottles, detergents, and so on. This is a polyethylene plastic with a high density that is considered safe, despite the fact that it does not emit toxins. However, when reused, it must be cleaned thoroughly because the remaining substances are easily converted into bacteria.

The next article Duy Tan will decode is a triangle symbol with the number 3, and we'll find out what kind of plastic it is!