water conservation and environmental protection concept illustration. - 閥 幅插畫檔、美工圖案、卡通及圖標節約用水, 矢量圖, 水龍頭
technical drawings and diagrams from 19th century engineering magazine, bremme's valve gear - 閥 幅插畫檔、美工圖案、卡通及圖標復古風格
high angle view of pipeline with red valve. oil, gas or water transportation with blue pipe line valve - 閥 幅插畫檔、美工圖案、卡通及圖標油泵 - 製造設備, 污水, 矢量圖
hydraulic or pneumatic door closer, a mechanical device that automatically closes a door after it has been opened - 閥 幅插畫檔、美工圖案、卡通及圖標鍛鐵
first experimental apparatus for hydraulic pressure, invented by charles thomas crowden victorian british engineer and inventor, 1890s, 19th century - 閥 幅插畫檔、美工圖案、卡通及圖標
technical drawings and diagrams from 19th century engineering magazine, re-seatable valve - 閥 幅插畫檔、美工圖案、卡通及圖標
black speckled gear-like outline centered on a white background, with a large circular center hole and six smaller circular cutouts around it. - 閥 幅插畫檔、美工圖案、卡通及圖標
a simple black outlined gear shape centered on a plain white background, with a clean minimalist look and no other visible elements. - 閥 幅插畫檔、美工圖案、卡通及圖標
plumbing services editable stroke line icon set – plumber, pipe repair, water leak, drain and home plumbing - 閥 幅插畫檔、美工圖案、卡通及圖標
