If you are going for a nice spherical stone, begin with the corners and rub them down evenly. Once you've your stone formed like you want, you're willing to utilize a finer-grain sandpaper. Periodically, dip the stone into your bucket of water to help keep the stone damp. ออกแบบหน้าบ้านสวย และปลอดภัยด้วยกระเบื้องปูพื้นไม่ลื่น https://beediadiamond.com/catalog/polishing-stones