I loko o ke kaʻina hana i kēlā me kēia lā, ma muli o ka ʻelemakule o ka umu sintering, nitrogen generator, ammonia decomposition a me nā mea hana ʻē aʻe, ʻo nā huahana metallurgy pauka ma hope o ka umu he mau pilikia oxidation e like me ka blackening, yellowing, decarburization, and sandblasting on t. ..
Heluhelu hou aku