Yesdda?refractory?co,ltd?are?the?fastest?growing?manufacturing,?export?house?in?Refractories,?ferroalloys,?including?dead?burnt?magnesite,?caustic?calcined?magnesite?,?ferro?chrome?nitride.We?have?a?huge?marketing?set?up?across?China?with?a?very?dedicated?and?professional?team?having?vast?technical??knowledge?and?experience ...