irrigation woker using a red pvc pipe cutter to cut a polypropylene plastic sprinkler line to length - 硬管 個照片及圖片檔
detail of giant blue-colored water pipes, a peculiar system used to pump away ground-water from flooded foundations of construction sites. - 硬管 個照片及圖片檔
decentralized network nodes connections subway street network abstract background - 硬管 幅插畫檔、美工圖案、卡通及圖標