Seamless pure calcium cored wire is welded using special technology so that it is fed in at a suitable speed, melts at the bottom, adheres closely to the ladle, and is highly absorbed by the molten steel.

Crushed calcium silicate powder is used as the core material, and the outer skin is a cold-rolled steel strip.

At present, global enterprises use CaFe cored wire to refine steel, which has higher requirements for low carbon, ultra-low carbon, and low silicon steel, and strict requirements on the shape and quantity of inclusions.

Alloy cored wire is a product used in steelmaking to purify the form of steel inclusions.