Not known Details About polishing stones without a tumbler
·เหมาะสำหรับใบมีดขัดโลหะอ่อนและการขัดสีThrough this stage, the rocks will grow to be polished and shiny. It is necessary to check the development in the rocks frequently and include drinking water and polishing compound as required.ขนาดของเม็ดขั