Cast iron and the oxygen lance process By garikaib|2022-09-15T12:39:22+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes| Molten cast iron. Image credit engineering.com ZIMSEC O Level Combined Science Notes: Cast iron and the oxygen lance process The iron that is produced in the blast furnace contains about 4% carbon in mass terms It also has other impurities such as phosphorus and sulpher […] Quick NetOne, Econet, And Telecel Airtime Recharge Number to recharge: Airtime amount ($): EcoCash number: Buy {{error_message}} {{error_message}} Read More Comments Off on Cast iron and the oxygen lance process