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Konggang Road 1-,Chengdu,Sichuan,China China
double-concave lens also named bi-concave lens, is used to diverge light, the bi-concave lens is best used when the input beam is converging, it is us
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material clear optical glass NX
Persona de contacto Mr. hunter huang
Dirección Konggang Road 1-, Chengdu, Sichuan
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