german gasrostofen (gas roasting or calcining furnace) primarily referred to a specialized, state-of-the-art industrial metallurgical furnace used for roasting iron ores—specifically designed by engineers like per axel westman, vintage illustration 19th - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
impossible architectures: digital manipulation of kokerei hansa, old industrial relic in dortmund, germany - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
antique illustration of 19th century industry, technology and craftsmanship: metallurgy, puddling furnace - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
industrial history, puddling furnace a type of industrial reverberatory furnace, vintage illustration 19th century 1870s, german text - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
industrial history, foundry worker pouring molten metal into a crucible, vintage illustration, 19th century - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
antique illustration, metallurgy: siemens furnace with gas generator for melting steel - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
alfred krupp (1812-1887), german industrialist, wood engraving, published in 1881 - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
history engineering, industrial revolution, metal workers using a steam hammer, victorian, vintage illustration, 19th century - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
historical technical drawing of a reverberatory furnace — a type of industrial furnace used in metalworking, particularly for smelting or refining metals such as copper, lead, and tin - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
metallurgy ,tin ,lead and mercury, the art of extracting metals from their ores, and adapting them to various purposes of manufacture - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
industrial history, charcoal roasting heap, vintage illustration 19th century 1870s, german text - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
an industrial landscape view of a metallurgical processing facility featuring large cyanidation vats - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
metalworker welding helmet simple line icon design with editable stroke. suitable for infographics, web pages, mobile apps, ui, ux, and gui design. - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
pneumatic chipping hammer or scaling hammer ,it is a small, air-powered tool used primarily in industrial settings, metalworking, and masonry - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標
antique illustration of 19th century industry, technology and craftsmanship: metallurgy rolling mill - 鋼鐵廠 幅插畫檔、美工圖案、卡通及圖標