tensile tester

Eyeglass frames quality issues and testing methods: tensile performance

The strength of the hinges, nose bridge and other welded joints of the glasses are evaluated by the eyeglasses frame tensile tester. If they do not reach the standard and break off, the glasses are unqualified and need to be discarded and redone. Qualified eyeglass frames need to be guaranteed to be safe to wear for 2 years or more.

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