Aluminum is made from bauxite.

是从矿中提炼出。

Addition of partial nephelite during bauxite sintering could not only make up consumption of soda, but also attain purpose for treating nephelite.

在矿烧结过程中添加部分霞石矿,以补充碱消耗,同时达到处理霞石目。

CA Cement Clinker is a manufactured commodity which raw materials are high quality limestone and bauxite.The raw materials should be mixed according to suitable ratio to pelletize.

酸钙熟料是以经优质钙质、质原材料按适例配合，经成型后烧结至部分熔融而制成。