SK牌測試針規(guī)-AA系列鋼制針規(guī)----------------------------------------------------- 直徑(mm)間隔尺寸長 度直徑精度真圓度硬度0.05-0.090.01mm5~10mm 0.5 m 0.5 m HRC480.10-0.190.01mm20mm 0.5 m 0.5 m HRC480.20-0.990.01mm40mm 1 m 0.8 m HRC651.00-10.000.001mm50mm 1 m 0.8 m HRC6510.01-20.000.01mm50mm 1.5 m 1.3 m HRC6520.00-30.000.01mm50mm 2 m 1.6 m HRC65