China Nitrided Ferro Chrome 1-3mm Granule / N-Fecr Granlue 1-3mm Cr: 56-60%, Find details about China N-Fecr 1-3mm, Nitrided Ferro Chrome from Nitrided Ferro Chrome 1-3mm Granule / N-Fecr Granlue 1-3mm Cr: 56-60%