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3D Red Rose [ K9 Crystal ] For Indoor KTV Office Background Wall Description K9 crystal is an optical borosilicate crown glass crystal that is manufactured in China. It features exceptional physical properties ...
Professional custom 200mm optical glass big prism Large crystal suncatcher corner cube prism Right-angle prism is the most common type of prisms. It is used to re-direct a beam of light at 90 degrees from the t...