Class Materials Charge - Brass or Copper Sheet or strip by gram and centigram

Extra brass or copper sheet or anything by weight of gram or centigram. 

Eg - 4.5g would be charged at 

4 grams and 5 centigrams

6.04grams would be charged as 6 grams

6.45grams would be charged as 6 grams and 5 centigrams