鋁38-60%,藍光白45到70
鋁54%,鋁矽比5.1,硫7%
氧化好,白度好,低鐵,陶瓷料
①鋁35%,白度45
②鋁39%,白度50
③鋁18%,白度60
鋁50%±5%,矽13%±3%,鐵20%±3%