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    1pc 3 Lines Laser Light Source Optical Physics Experiment Teaching Instrument

    • Item No : 116016524302
    • Condition : New
    • Brand : Unbranded
    • Seller : le.en-optical-lens
    • Current Bid : US $11.88

    • * Item Description

    • 2, the laser can not irradiate any reflective surface or smooth surface, excellent laser reflection. when exposed to the reflective surface will have a reflection, if just exposure to the human eye can lead to injury.
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