A liquid supply device includes a liquid supply path for supplying liquid from an upstream side toward a downstream side where the liquid is consumed. The accessory includes a camera and circuitry. The wind turbine further includes an oil pump connected to the hydraulic contractor through an oil pipe, and the wind turbine shaft installs an electrically conductive ring. The system designates a visual representation for each of the results. The finished shape is created by bringing together all of the layers, then progressively folding them around a heated mandrel that has been shaped to match the inner hollow space of a formed paper tube corner post design. The at least one first wash liquid and a second wash liquid used for creating the steam may have boiling temperatures differing by at least 5\xb0 C.