自制酸奶面膜

金的计价系数 金精粉的计价系数又名金的计价系数和金精矿的计价系数   一般生产直接成本160—170元/吨 总成本400元/吨 氰化钠消耗一般在3—15Kg 金精粉品位                  计价系数 >15g/t                           72.8 20                              75.5 30                              77.5 40                              79.2 50                              80.6 60                              81.9 70                              83.2 80                              84.5 90                              85.2 100                             86.0