In case you don’t choose to make use of a chisel or hammer, rub the stone about a slab of concrete to interrupt off any protrusions. น้ำยาประเภทเคลือบเงาใช้กับเครื่องขัดพื้น Rock polishing is usually a process in which rocks are created smooth and glossy. Craftspeople generally polish rocks for decoration or functional use, https://beediadiamond.com/catalog/polishing-stones