โรงงานผลิตแปรงอุตสาหกรรม สมุทรปราการ แชร์ Brushing commences following the metal is sanded and cleaned. An abrasive brush moves in a very circular movement to the metal floor to get rid of defects through the area. Brushing gives metals a homogenous floor, adding cleanness and consistency to an if not uneven surface area. https://beediadiamond.com/catalog/polishing-brush