(1) manual aiki inji polishing: shi ne ta hanyar yankan, abu surface filastik nakasawa cire bayan polishing da convex da santsi surface polishing hanya, kullum amfani da man fetur, ulu dabaran, sandpaper, da dai sauransu, an ba da fifiko ga tare da manual aiki, musamman sassa irin su. kamar yadda Rotary surface, ...
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