技术参数：

Manganese (Mn)    Basis 46.00% - 47.99% (44% min.)

Iron (Fe)                  5.00% max.

SiO2                       15% max.

P                             0.12% max.

S                             0.10% max.

Al2O3                     8.00% max.

Size                         10-100mm 80%min.