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SHANDONG YU YING OPTICAL INSTRUMENT CO.,LTD
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Experience:2003-02-28
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Product Details
- Place of Origin: SHANDONG,CHINA
- Brand Name: Yuying
- Model Number: YY
PMMA optical fresnel led lenses overhead projector fresnel lens
- Place of Origin: SHANDONG,CHINA
- Brand Name: Yuying
- Model Number: YY