美制螺紋(UNC/UNF). ※一級牙→3A/3B ; 二級牙→2A/2B ; 三級牙→1A/1B. 螺紋栓牙規P.G, 螺紋環牙規R.G. NO.01 UNC 64. NO.02 UNC 56. NO.03 UNC 48. NO.04 UNC 40 ...
確定！ 回上一頁
