Specifications 1)Main classification :extra carbon,low-C,medium-C,high-C 2)Factory price 3)Guaranteed quality ferro chromium , Technical parameter (GB/T5683-1987)TypeBrandChemical Compositions(%)CrCSiPSScopeⅠⅡⅠⅡⅠⅡⅠⅡ≥≤Micro-carbonFerro chromiumFeCr69C0.0363~750.0310.03 0.250.030.025FeCr55C360521.520.04FeCr69C0.0663~750.061FeCr55C660521.520.040.060.03FeCr69C0.1063~750.110.030.25FeCr55C1060521.520. ...