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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - 3o4pg6g
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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - bum34ar
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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - 07p1ls2
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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - fdkfx92
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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - 4ma9s6f
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Unr Students Rejoice!  The Ultimate 2024 Holiday Guide - 8qosafg


Please enable it to continue. 英制:例如1/2npt (1/2代表每英寸内的牙数是14,大径20. 955、 中径19. 793、小径18. 631) 如:3/16-32 unf-1b)3/16是螺纹大径(外径),以英寸计算,1 inch = 25. 4 mm 32是指每英寸 … Un和unr有什么区,代表什么?un是英制统一螺纹,牙型角是60度,公称直径以英寸为单位。其中外螺纹牙底做成相应圆弧(半径为0. 12825p至0. 14434p)的用unr表示。粗牙的是unc,细 … Un,unf,unc;是英寸制统一螺纹的识别 un是英文unified national的缩写,属于统一螺纹的恒定螺距系列。unf是英文unified national fine的缩写,是统一螺纹细牙系列。unc是英文unified … 粗牙螺纹(unc)、细牙螺纹(unf)、超细牙螺纹 (unef)、特殊牙距螺纹 (uns)之间有牙形、牙齿量、适用情况的区别: 1、牙形 unc表示美国统一螺纹un系列(外螺纹牙底半径任选)中的粗 … Were sorry but web site doesnt work properly without javascript enabled. Unr:外螺纹设计牙型根部必须为圆弧 (in order to reduce the rate of threading tool crest wear and to improve fatigue strength of a flat root thread, the design profile of the unr thread has a non … Unr 圆弧牙底恒定螺距系列的统一螺纹 牙型角为60°的英制螺纹,具有圆弧牙底的unr、unrc、unrf、unref、unrs 只用于外螺纹而没有内螺纹 以上为美国标准ansib1. 1标准牙型 (牙底是平的或随意倒圆的)的内、外螺纹 圆弧牙底的unr、unrc、unrf、unref、nrs只用于外螺纹而没有内螺纹