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Amazon.com: Cloudray 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter : Arts, Crafts & Sewing
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Amazon.com: Lightobject 12mm/15mm/18mm/20mm Laser Head with Air Assisted Connector. Ideal for K40 Machine : Sports & Outdoors
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