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In the process of impact testing of metal materials, not only the high precision impact testing machine, but also the preparation of qualified samples.Our company has developed a special broaching machine for the l71-uv type impact sample notch, which can be pulled out from the sample blank to fully conform to the sample gap of GB/t229-2007 “metal charpy notch impact test method”.This machine has the advantages of high precision, long life, низький рівень шуму, beautiful appearance and so on. It is the first choice for many users in various industries.