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  • 11/10/2022
    What is NPTF thread

    NPTF, American dry seal conical Pipe Thread, short for National (American) Pipe Thread, belongs to the United States standard 60 degree conical Pipe Thread, used in North America. The tooth shape Angle is 60 degrees, the taper is 1:16, and the taper limit deviation is -0.005~+0.005mm/mm. National standard can refer to GB/T 12716-2011 60° sealing… Continue reading What is NPTF thread

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