16 Inner Dyeing stain color liquid 1. Review Our AIDITE has found in 2007, we are one of the earliest and best professional manufacture of dental zircona ceramic blocks; Besides the zirconia blocks, we also could supply all kinds of dental consumbles, like WAX, PMMA, COLOR LIQUID, SINTERIG SAGGER, ZIRCONIA BEADS, GLAZING SUIT etc; 2. Specifications:16colors A: A1 A2 A3 A3.5 A4 B: B1 B2 B3 B4 C: C1 C2 C3 C4 D: D2 D3 D4 3. Full Certifications: CE CE0029 ISO13485 SYSTEM FDA K111291 4. The package: