The Ultimate Guide To Phonnarong Lohakit
The steel was finished by including carbon and manganese-not as simple as it sounds. In 1919 an open up-hearth worker described the process in his diary: "You carry a big sack of coal for your shoulders, run towards the white very hot steel in 100-ton ladle, must get close sufficient devoid of burning your facial area off to hurl the sack, employin