含着她的花蒂啃到高潮,国产a网,国产亚洲一,www.av插插,www.桃色.com,a中文字幕解说在线,又黄又激情的视频

1. Fine powder texture, easy to shape. Facilitate the repair of individual parts of the model

2. The solidification time is appropriate, and the infusion model is easy to operate. The viscosity is easy to control during infusion

3. Low coefficient of expansion, precise model replication, and sufficient reflection of details

4. High strength and hardness, leaving no trace on the surface when the nail is scratched, suitable for precision casting molds, and easy to operate when trimming the model