鋁37%,鉀3.5%,鐵0.7%,鈉0.9%,強度5.3MPa,白度71-75
鎂質土,窯爐燒白47,強度3.3MPa,燒失6.2%,鎂20.5%,鈣0.56%
現貨15000噸,鐵2.5%,鋁33%,廠窯爐燒濕白17左右
鐵<2%,鋁>30%,泡水不泛紅