These Medium Point Felt Tip Action Markers have a very durable fiber tip. Screw on cap, pocket clip, and vibrant colors make this an industry favorite. Certificates of conformance available by batch number. Meets RDT-F7-3T. Example of sample test results: Copper <1ppm, Fluorine <6ppm, Iron 16ppm, Mercury<2ppm, Lead<1ppm, Sulfur<11ppm, Zinc<1ppm, Total Halogens 84 ppm.
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