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381The conical pick tooth body of construction machinery is made of high-strength alloy structural steel such as 42CrMo and 35CrMnSi, which is strengthened by heat treatment; The alloy head is tungsten cobalt carbide (YG8, etc.), which is fixed by brazing. In mines, tunnels and other projects, it can efficiently cut and crush hard materials such as rock and concrete, and use the tapered design to reduce resistance, improve drilling guidance and wear resistance, and prolong the service life. It h
