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Polyetherimide (PEI) is a high performance engineering thermoplastic. PEI’s characteristics include high strength and rigidity at elevated temperatures, long term heat resistance, dimensional stability and good electrical properties.
In simple terms, ULTEM/PEI material is the updated versions of TR90. The most important is, the surface finish of PEI frames are done more excellent than TR90, it’s long-lasting color.
Wenzhou Yitai Optical Co.,Ltd.
Tel.: +86-577-88232929
Fax: +86-577-86287465
Mobile: +86-13806888027
E-mail: info@yitaioptical.com
Add.: No.11, Getian Road, Getian Industrial Park, Zeya Town, Ouhai District 325023, Wenzhou, China.