Deresin spray cleaning – It makes use of the clean capacity of alkaline cleaner, and physical characteristics of supersonic vibration, to achieve perfect cleaning effect of the oil spot on working surface. Deresin wind knife - It makes use of the wind velocity, induce by high pressure air blowing machine, to erase the residual cleaner of working surface. Water jet cleaning –It makes use of the pressed water, that induce by pump, to wash out the residual cleaner of working surface. Soft water jet cleaning and wind knife drying, hot wind drying, and then make use of the above methods to finish the cleaning work.