Ningxiajinjing metallurgicalls and minerals industrial co.,ltd

WE HAVE ASSEMBLY LINE FOR 13000MTS BLACK SILICON GRAIN,3000MTS BLACK SILICON CARBIDE POWER AND 10000MT REFACTORY POWDER RESPECTIVELY.WE CAN PRODUCE BLACK SILICON CARBIDE GRAIN FORM GRIT.40 TO GRIT. 240 ,THE QUALITY IS IN CONFORMITY WITH STANDARD GB2477-96