the friedrich wilhelms-hütte is a steel casting factory, based in mülheim an der ruhr - 冶金學 幅插畫檔、美工圖案、卡通及圖標工廠, 雕刻圖像
heavy and power related vector illustration. machine, plant, energy, engineering, industry - 冶金學 幅插畫檔、美工圖案、卡通及圖標
heavy and power related vector illustration. machine, plant, energy, engineering, industry - 冶金學 幅插畫檔、美工圖案、卡通及圖標能源, 空中交通工具
smelter workers tapping raw matte slag inside a furnace hall — glowing molten material pours into metal containers as laborers guide the flow with long iron tools amid flames, smoke and intense heat - 冶金學 幅插畫檔、美工圖案、卡通及圖標
antique illustration of 19th century industry, technology and craftsmanship: metallurgy wire works - 冶金學 幅插畫檔、美工圖案、卡通及圖標
antique illustration of 19th century industry, technology and craftsmanship: metallurgy barrow - 冶金學 幅插畫檔、美工圖案、卡通及圖標
heavy and power related vector illustration. machine, plant, energy, engineering, industry - 冶金學 幅插畫檔、美工圖案、卡通及圖標
industrial history, siemens rotatory furnace, direct reduction metallurgical furnace, vintage illustration 19th century 1870s, german text - 冶金學 幅插畫檔、美工圖案、卡通及圖標