Description

• Composite: no layering. No bubbles. Without white spots. No wrinkles.
• Bag: edge without false hot, no shrinkage. Smooth, firm 
• Thickness: **6 ± *0%U
• mouth: the base for the white, cover is black, after gamma-sterilization no yellowing. good sealing and do not leak after Loading

• boiled germicidal test: **0 ± 2 ℃ sterilization and boiled for *5 minutes, cooled to room temperature, no elimination, no obvious pucker.
• Droped test: it does not break leakage dropped 3 times from ***0mm irregular in height