Vintage gravyr av en kupol ugnen. En kupol eller cupola ugn är en smältande enhet används i gjuterier som kan användas att smälta gjutjärn, ni-resist järn och vissa bronser. 1884 se mer: ugn Printmaking Technique gjuteri Cupola ugn
Vintage engraving of men using a 19th Century puddling furnace in an ironworks. Puddling was an Industrial Revolution means of making iron and steel. View More: vattenpussar gjuteri stålverk Puddling furnace
Vintage engraving from 1864 a Blast Furnace, a type of metallurgical furnace used for smelting to produce industrial metals, generally iron. View More: ilustration stålverk industrin Blast Furnace
Vintage engraving of men using a flame furnace for Smelting, 19th Century. View More: industriella revolutionen Old-fashioned fabriken Flame furnace
Vintage engraving of men using a shaft furnace, 19th century. metallarbeten mineral ugn Shaft Furnace - Metalworking