久久国产精品免费专区,国产一区亚洲二区三区,亚洲国产精品一区二区三区,亚洲精品福利,最新99国产成人精品视频免费,一区二区亚洲视频,国产呦精品一区二区三区网站

The industry model material produced by patented granulation process, irregular but principled, porcelain free metal fixed restoration - Japanese alloy formula, produced by Beiyuan patented granulation process

The casting process is simple, easy to complete, and the operation is easy and convenient

Melting speed block, good fluidity, easy to obtain perfect castings

1. The oxide layer is soft, easy to polish, and easily obtains a bright white surface

2. Low casting temperature, energy-saving and environmentally friendly, high casting efficiency

3. After polishing, a dense passivation layer is automatically formed, which has strong corrosion resistance, good biocompatibility, and ensures the health of patients

4. Registered with the National Medical Products Administration and tested by the National Center for Disease Control and Prevention laboratory, ensuring safety