1.high anti-corrsion resitance and Bioligical compatibility,solves the emorrhagegums and prevedt gums'edge to be blackended. conforms to ISO9693 and CE0197 on national standard.
2.contains no carcinogentic metal elements like Nickel or Beryllium,conforms to ISO10993-5 international standard.
3.high intensity and Porcelain binding force,guarantee body repair.
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