技术支持

                                                    微米目数转换

                    微 米                  目 数                      英 寸
                   2000                    10                    0.0787
                   1680                    12                    0.0661
                   1000                    18                    0.0394
                   841                    20                    0.0331
                   707                    25                    0.0280
                   595                    30                    0.0232
                   500                    35                    0.0197
                   420                    40                    0.0165
                   354                    45                    0.0138
                   297                    50                    0.0117
                   250                    60                    0.0098
                   210                    70                    0.0083
                   177                    80                    0.0070
                   149                    100                    0.0059
                   125                    120                    0.0049
                   105                    140                    0.0041
                   88                    170                    0.0035
                   74                    200                    0.0029
                   63                    230                    0.0024
                   53                    270                    0.0021
                   44                    325                    0.0017
                   37                    400                    0.0015
                   25                    550                    0.00099
                   20                    625                    0.00079
                   10                    1250                    0.000394
                    8                    1750                    0.000315
                   5                    2500                    0.000197
                   2.5                    5000                    0.000099
                   1                    12000                    0.0000394
                                                                                                                                                返回上级菜单