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    3M 311-1250 Polyurethane foam for noise reduction Ear plugs for noise reduction

    Manufacturer: 3M
    With reflective color, cylindrical shape, one end rounded, easy to wear For comfort throughout the working hours, reducing noise. NRR 33 dB
    SKU: กล่อง/Box
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    ฿50.00
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    The smooth outer surface is made from the most soft polyurethane foam (The World's Softest Earplugs). ANSI S3.19-1974 with 1 plastic box containing 200 pairs.

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