"I'd identified agates, raw gems, petrified Wooden and a few very interesting rocks with purple and orange veins walking a three-mile stretch over a mountain highway. I don't have a rock tumbler so I polished them by hand. They turned out excellent. "..." a lot more Rated this text: เหมาะสำหรับขจัดส่วนหนาของสนิมบนทุกแบบของโมลด์และเหล็กตาย https://beediadiamond.com/catalog/polishing-stones