是时候升级你的浏览器了

Referring recordings of archives of Federal Mining Office it is proved that graphite has been mined already before 1755 under the term of "water plumbum". Industrially used winning has been started in the year 1832, since that time beeing the company "Grafitbergbau Kaisersberg" is a private property. A continous development of all areas has resulted in an advanced, customized and family-owned business. As company's outdoor advertising concerning quality level of products we have successfully passed an offical inspection and the high standard of our quality controlling process, which we are operating for years, guarantees best engagement to satisfy customer demands. Regular investment, design and development as well as permanent research projects in cooperation with universiti…