The present invention concerns a sphere, characterized in that it comprises at least one polymer of hyaluronate and glucomannan. by using X-rays having different energy levels. The levers are movable by pressures from above into a working position and are securable therein and from undercut areas and are movable by movement of the workpieces after the workpieces have been jointed in the upward direction into a release position in which the undercut areas are completely released. The server sends the design drawings to the machining computers for operators to machine various parts of the mold and assemble the parts into the finished mold. 05 \u03bcm and 5 mm, has a loss factor tan \u03b4 of less than or equal to 70*10\u22124 in at least a frequency range above 1 GHz.