mobile slipway crane with suspended hydraulic riveting machines during the construction of rms oceanic at the harland & wolff shipyard in belfast - 液壓升降平台 幅插畫檔、美工圖案、卡通及圖標
birkenhead warehouses and hydraulic water tower near liverpool — masts and sailing ships line the mersey as dock machinery powers a modern port - 液壓升降平台 幅插畫檔、美工圖案、卡通及圖標