切削性能试验表明，激光硬化的刀具寿命可以大大提高。
Test of cutting performance shows that its lifetime can be increased greatly.
采用四面刃的剪切刀片，提高了刀具的使用寿命。
The adoption of four-sideedge shearing blade prolongs the service life of blade.
功能、用途：提高机器使用效率，延长刀具寿命。
Function: Improve the efficiency of machines and extend the life of cutter.
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