hardeners in the threatened parts of bottles?
anybody knows how the threathened part (on the top) of bottles are made? I cant find it on the internet. I want to know if chemical hardeners are used, cause that would probably mean to better not melt it, i guess
As far as i know it´s just normal plastic, but then thicker. cause it´s not really possible to add hardeners to only a part of a product.
This is how they make normal drinking bottles
ok thanks, yeah i was thinking the same but wanted to be sure cause i will work with kids
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