1 to buy a piece of white bread dry or dried, of course dry steamed buns steamed buns in Shandong or the northeast line (Wang Zi small steamed buns exception). In accordance with the relevant dimensions of your collections, into one or several. 2 delimit a region, in a relative to clean works to operation white plane is large enough. 3 dry bread or steamed buns (remember do not rancid) of the middle part to pull a piece of it, gently pat or brush on the screen, and so. Bread steamed buns can absorb dust and other foreign matters on the screen. 4 use a soft brush to brush the wall paint, similar to the kind of (to be soft, than children toothbrush and soft), gently put the bread steamed buns on the screen. 5 Finally, to ensure the completion of clean-up work well, the collection and placed in a transparent condition good wall or the base, to ensure that the oil to get the best show.