How to select Crystal products

① raw material: Crystal products of excellent materials, should not see the glue and cotton; pure texture, smooth, crystal clear as well.

② works: Crystal products processing is divided into two kinds, namely grinders and carving. Crystal Necklace, bracelet, earrings and so on belong to grinding products Avalokitesvara, painted snuff bottles belongs to sculpture.

③ polishing: polishing the affects of Crystal products price tag. Includes soft polishing polishing and polishing hard.

Black holes: for wearing Crystal products (such as necklaces, bracelets, beads), depends on the hole is straight, porosity and thickness is uniform, there are no hairline cracks. Hole wall must be clear and transparent, no "white mark".