This video lecture from Transition Elements (F.Sc. second year Chemistry) covers: Manufacturing of steel by a faster process using Bessemer’s furnace. the use of acidic and basic refractory lining for neutralization of oxides formed by the oxidation of impurities in iron. Comparison of various steel making processes in the world. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.