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canghaiyisu6:我这边做过,不过你50W的功率,靠近LED准直透镜用PMMA ,这个塑料扛得住这个温度吗? d2ENm%q*PX 我用2个透镜玻璃材料做的准直 %xyX8c{sP (2017-03-22 14:59) <3O T>E[
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