Acquiring Understood the science driving rock polishing, let us Have a look at an actual-everyday living transformation of the tough rock into a refined gemstone. หินขัดแม่พิมพ์ / หินน้ำมัน สำหรับขัดขึ้นเงา และขัดรอยไหม้ Rock polishing is actually a method wherein rocks are made smooth and glossy. Craftspeople often polish rocks for decoration or Successfully Submitted (Awaiting Approval)