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Pipe (NPS) Thread Round Die, High Speed Steel 1/4 - 18 N.P.S. X 1-1/2" O.D.: Amazon.com: Industrial & Scientific
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NPS® Steel Height Adjustable Science Lab Table, 24 X 72, HPL Top, Black | B2813002 - GLOBALindustrial.com
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1/8"-27 NPS Round Pipe Die, 1" Outside Diameter - High Speed Steel - National Pipe Straight, By Dies Round NPS - Walmart.com
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