Hand-held Concave Lens 4cm Diameter 10cm Focal Length Physics teaching instrument

Model No.:HTP-082

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1.All Hand-held Concave Lens 4cm pictures are 100% real sample photograph. While,due to the light and shooting technology, the physical objects and pictures will inevitably have some color differences, wish you could understand.But we will offer the most favorable price and the most exquisite products to you.

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