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Lead and cadmium in optical and filter glass.

光学玻璃及滤光玻璃中所用的铅及镉.

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Lead and cadmium optical and filter glass.

用于光学及滤波器玻璃中的铅和镉.

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We can also make optical filter glass of special size according to our client requirement.

我们也可按照客户的需要,定制特殊规格的光学滤色镜.

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