1. Mechanical Polishing Mechanical polishing shi ne dogara da yankan, nakasar filastik daga cikin kayan don cire ɓangaren maɗaukaki na farfajiyar da aka goge da kuma samun hanyar polishing mai santsi, gabaɗaya ta yin amfani da tube dutsen mai, ƙafafun ulu, sandpaper, da dai sauransu. , wanda aka fi amfani da hannu,...
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