1. Mechanical Polishing Mechanical polishing waa in lagu tiirsado goynta, qallooca balaastikada ah ee dusha walaxda si meesha looga saaro qaybta convex ee dusha sare ee dhalaalaya oo aad hesho hab siman oo dusha sare ah, guud ahaan isticmaalka xariijimaha dhagaxa saliidda, giraangiraha dhogorta, warqad ciid, iwm. , inta badan gacanta lagu shaqeeyo,...
Akhri wax dheeraad ah