one continuous line drawing of cooker hood icon. single line vector illustration - 出風口 幅插畫檔、美工圖案、卡通及圖標圖示, 廚房抽油煙機, 家庭電器
green building smart glass vector icon set. electrochromic glass, and eco architecture icons - 出風口 幅插畫檔、美工圖案、卡通及圖標
history of mining, miners working in a coal mine, ventilators, basket going up the shaft, vintage illustration, 1850s 19th century - 出風口 幅插畫檔、美工圖案、卡通及圖標
antique illustration of 19th century industry, technology and craftsmanship: coal mine ventilation - 出風口 幅插畫檔、美工圖案、卡通及圖標
cartoon house electric fan for kids this is a vector illustration for preschool and home training for parents and teachers. - 出風口 幅插畫檔、美工圖案、卡通及圖標電風扇
