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Banner MINI-BEAM: Aperture; Horizontal Slotted; 0.5 x 6.44 mm (0.02 x 0.25 in); For Opposed Mode MINI-BEAM Sensors - QTY 20 (AP31-020H)
https://www.branom.com/shop/27130-banner-mini-beam-aperture-horizontal-slotted-0-5-x-6-44-mm-0-02-x-0-25-in-for-opposed-mode-mini-beam-sensors-qty-20-ap31-020h-18142
https://www.branom.com/web/image/product.template/18142/image_1920?unique=0b1a179
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