ABOUT US Gemstone is a high tech group which integrates research, production and sales of alumina new material products. After 7 years of development , the company now owns 4 functionally independent production bases, 2 foreign trade companies and one technological equipment manufacturing companies. The main productio.....【Details】

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  You can order directly through made in China!

  To celebrate the opening of our made in China network,All products can be sold online, we have profes...

  【03-23-2021】【View Details】

• [03-23-2021]
  You can order directly through made in China!
• [03-23-2021]
  Properties and application of wear resistant ceramics
• [11-23-2018]
  The origin and universality of zirconia ceramics.
• [02-22-2016]
  The analysis of Zirconia ceramics micromininature cutting technique.
• [02-22-2016]
  Congratulations on GEMSTONE website in service.