When molten iron rushes like a river, and flames tear through the night, a converter is the pulse of a city. With its 1,600 breaths, it forges the silence of ore into the roar of steel; with its 45-minute extreme transformation, it transforms the clunky molten iron into a hard skeleton that supports skyscrapers, high-speed railways, aircraft carriers, and dreams. Every swing is a dialogue between the earth and the stars; every spark is a salute to the future from humanity. Choosing a converter means choosing to forge the scorching present into a promising tomorrow.