材料磁化率 ≤0.05
材料密度=7.85g/cm3

标称值            每盒个数
20kg-10kg        2
5kg-1kg            4
2kg-1kg            3
500g-1g          12
200g-1g          11
100g-1g           9
500mg-1mg     12 
20kg                 1
10kg                 1
5kg                   1
2kg                   1
1kg                   1
500g                 1
200g                 1
100g                 1
50g                   1
20g                   1
10g                   1
5g                     1
2g                     1
1g                     1
mg片码              1