There are mainly two kinds of materials for nose bridge: metal and plastic. The plastic nose bar is generally made of PE, PP and PET, and the specific formula varies from manufacturer to manufacturer. For the all-plastic nose bar, the special material SE8153 for the all-plastic nose bar has been developed, which is made of polyolefin material.
Compared with the traditional metal nose bar, the all-plastic nose bar also has the excellent performance of multiple external force bending deformation, force loss and non-rebound, and maintaining the existing shape unchanged for a long time. More importantly, the all-plastic nose bar also has the advantages of higher production efficiency, more light and flexible, and more environmental protection