| 21 26 | | 23 | | 21 08 23 20 | | | 0.1 ~ 9.9mm | | | 0 .1 ~ 2.4mm | | 24 ~ 4.9mm | | | 5.0 ~ 9.9mm | | 10.0mm 10 ~ 20cm | 23 08 26 08 | | 4 5 | 5 6 | | 4 6 | 6 8 | 8 25 26 | 20 | | | | | |