an ancient quern-stone a stone tool for hand-grinding a wide variety of materials - 砂輪 幅插畫檔、美工圖案、卡通及圖標
knives, scissors and razors for grinding, scissors grinder, knife grinder with whetstone, two woman bringing scissors for grinding, england, c. 1790, painting by francis wheatley (1747 - 1801), english painter, historic, digitally restored reproduction fr - 砂輪 幅插畫檔、美工圖案、卡通及圖標
automatic flour mill ,how all the individual machines (rollers, sifters, purifiers) are arranged into a single, multi-story factory system ,design relies on gravity ,vertical arrangement minimized the need for manual handling - 砂輪 幅插畫檔、美工圖案、卡通及圖標
vintage illustration victorian industrial machinery, whetstone, 1890s, 19th century - 砂輪 幅插畫檔、美工圖案、卡通及圖標
