... .F. C is 95% 2.1-10mm,sulfur 0.4 max,ash 4%-9% 3.Be made from Ningxia Taixi blind coal 4. ... High absorptivity in molten steel Specifications of 90%-95%:1. F·C:95%, V.M ... :1.0%(MAX),A:4.0%(MAX),MOI:1.0%(MAX ... ),S:0.20%(MAX)2. F·C:93%, V.M ... 5%(MAX),MOI:1.0%(MAX),S:0.30%(MAX)4. F·C:90%, V.M:2.0%(MAX),A:8. ...