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据报导Jonas & Colver工具公司生产了一种Futumill EZNP新型铣刀。此种铣刀的切削效率高,成本低,是50年代中期推广不重磨铣刀以来的一大进展。每块刀片
Jonas & Colver Tools reportedly produced a new Futumill EZNP cutter. This type of milling cutter has the advantages of high cutting efficiency and low cost. It is a major development since the mid-1950s was launched to promote heavy-duty cutter. Each blade