常见例句Increasing the purity of the raw materials used for matrix in common fired magnesia brick helps the lining life of refiringfurnace for chrome ferrou alloy making prolonged. 在普通燒鎂甎中，提高基質相原料純度，可使精鍊鉻鉄爐爐襯壽命明顯提高。 返回 Ferrou