Ordinary wollastonite: The chemical composition of wollastonite is stable, and its alkalinity value is close to 1. It is an ideal raw material for metallurgical mold slag. ; At the same time, it can reduce the types of metallurgical mold slag, simplify its production process, and reduce production costs. It has been widely used in die casting, continuous casting (slab, billet), synthetic slag and stainless steel continuous casting. .

Ordinary dolomite: mainly used as flux, refractory and magnesium and magnesium compounds in metallurgical industry. As a flux for iron and steel making, dolomite can neutralize the acid slag, improve the basicity of the slag, and reduce the activity of FeO in the slag, thereby reducing the erosion of the slag on the furnace lining. Light-burned dolomite is mainly used in steelmaking, which can improve the fluidity of steel slag, and can be used as a slag-forming agent, which can not only prolong the life of the converter, improve the fluidity of the slag, but also improve the desulfurization and dephosphorization reaction, saving a lot of fluorite. Adding dolomite in ironmaking can dilute the slag, lower the melting point of the slag, reduce fuel consumption and improve the quality of pig iron.