what kind of material absorb light best?

springs 发表于 2008-4-8 11:01

what kind of material absorblight best?
we need it to decorateour wall for light measuring lab.

xycad 发表于 2008-4-8 17:44

black materials

雷克发表于 2014-7-7 09:58

呵呵，低调，低调！

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