聚氨酯pu熔点测试，聚乙烯树脂透光率测试

Method for the simulation of wear

镍释放测试 Nickel release test

Hinge -reliability test

Inclination - bending-test

Pull-out-force-test

夹口焊接强度测试 Soldering strength of rimlock

鼻梁焊接强度测试 Soldering strenght of bridge

烟斗焊接强度 Soldering strength of endpiece

铰链测试 Hinge test

记忆金属测试 NT Material test