What are the characteristics of PPSU spectacle frames
PPSU, scientific name: polyphenylsulfone resin. This is an amorphous thermal plastic with high transparency and high hydrolytic stability. The baby bottle made of this material has the permeability of a glass baby bottle and the lightness and drop resistance of a plastic baby bottle. At the same time, there is no bisphenol A harmful to babies, and it can withstand repeated steam sterilization. It is an ideal baby bottle Material.