用铁砂(磁铁矿)尾矿为原料可制备性能优良的吸收材料。

We can make superior absorption materials by using iron-sand (magnetite ore) tailings.

黑刚玉砂(又名低铝刚玉砂，铁砂粉)是一种新型抛光材料。

Black Aluminium Oxide AbrasiveBlack Aluminium Oxide abrasive (lower Aluminium Oxide abrasive) is a new type abrasive material for polishing various metal works.

黑刚玉砂（又名低铝刚玉砂，铁砂粉）是一种新型抛光材料。

Black Aluminium Oxide AbrasiveBlack Aluminium Oxide Abrasive(lower Aluminium Oxide Abrasive)is a new type abrasive material for polishing various metal works.

目前积极为属下工厂开发进口五矿和原材料，如铁砂及棕榈丝等。

Currently active for their imports of Minmetals Development Factory and raw materials such as silk, such as iron ore and palm.