It mainly deals with the polishing tools of super hard materials, such as gem polishing, artificial crystal polishing, etc., as well as the operation of ordinary polishing tools. For customers who need it, please email to 1985268179@ *域名隐藏* ...

主要产品/业务: It mainly deals with the polishing tools of super hard materials, such as gem polishing, artificial crystal polishing, etc., as well as the operation of ordinary polishing tools. For customers who need it, please email to 1985268179@ *域名隐藏*