1.Mechanical polishing Mechanical polishing shine hanyar polishing wanda ke kawar da sassa masu laushi masu laushi ta hanyar yankan da lalata filastik na kayan abu don samun m surface.Gabaɗaya, ana amfani da tube dutsen mai, ƙafafun ulu, sandpaper, da sauransu, galibi aikin hannu, da p...
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