High melting point and excellent abrasion and impact resistance, used as aggregate for mortar, blasting abrasive, and watertreatment filter sand.​

Attracts great attention in civil engineering and construction applications such as waste disposal. Used as foundry sand and pet sand.

Second to diamond in hardness, used as an abrasive for blast abrasives and water jet cutting.

Alloy of iron and chrome. It has the property of enhancing the corrosion and wear resistance of steel and is added to various special steels.

Alloy of iron and manganese. Mainly used as a deoxidizer / desulfurizer as an auxiliary material for steelmaking.

Alloy of manganese and silicon. Used to remove oxygen and sulfur in molten steel when adding iron, and to add manganese and silicon.

A compound of silicon and iron made from silica, reducing materials, and iron sources. Used for improving the strength of steel.

Used for industrial products by the fire resistance and insulation properties, also used for cosmetics and surface finishing utilizing its design.