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一九七三年汉诺威博览会上,首次展出了可用于切削加工的称为POLYBLOC1型的锒有多晶金刚石的刀具。这种刀具提供了对于某些工件材料经济加工的可能性,这些工件材料由于它们特殊的合金成份或填料使现有的那些刀具材料很快磨损或崩刃。带一
For the first time at the Hannover Fair in 1973, POLYBLOC1 polycrystalline diamond tools for machining were exhibited. This tool offers the possibility of economical processing of certain workpiece materials that rapidly wear or chipping off existing tool materials due to their special alloy composition or filler. With one