Original sentence: The Chinese and locals in Sri Lanka adopted the production methods of creating wootz steel from the Cheras by the 5th century BC.The crucible steel production process started in the 6th century BC, at production sites of Kodumanal in Tamil Nadu, Golconda in Telangana, Karnataka and Sri Lanka and exported globally; the Chera Dynasty producing what was termed the finest steel in the world, i.The method was to heat black magnetite ore in the presence of carbon in a sealed clay crucible inside a charcoal furnace to completely remove slag.Wootz steel originated in South India in Tamilakam, most likely in the modern day Indian state of Kerala
Edited sentence: The Chinese and locals in Sri Lanka adopted the production methods of creating wootz steel from the Chera Tamils by the 5th century BC.The Tamilakam method was to heat black magnetite ore in the presence of carbon in a sealed clay crucible inside a charcoal furnace to completely remove slag.The crucible steel production process started in the 6th century BC, at production sites of Kodumanal in Tamil Nadu, Golconda in Telangana, Karnataka and Sri Lanka and exported globally; the Tamils of the Chera Dynasty producing what was termed the finest steel in the world, i.Wootz steel originated in South India, in Tamilakam most likely modern day Indian state of Kerala