The benchmark delivery variety of ferrosilicon futures: silicon meeting the national standards of People's Republic of China (PRC).

Iron "(GB/T 2272-2009) stipulates that the brand is FeSi75-B (silicon content ≥72.0%,

Phosphorus content ≤0.04%, sulfur content ≤0.02%, carbon content ≤0.2%), and the particle size is

10-60mm ferrosilicon, in which: there is no requirement for the contents of manganese and chromium; Particle size deviation is too small

Not more than 5%, not more than 8% on the screen.