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主頁 > Qualification > PATENT > Invention patent

Invention patent

A Cold Drawing Method for High Carbon Chromium Bearing Steel Guide Rail Blank
by Tianchen on 2024-04-12
Read more
A port expanding device and its expanding method for steel production process
by Tianchen on 2024-04-07
Read more
A fixture and testing method for in-situ EBSD observation of material strain
by Tianchen on 2024-04-07
Read more
A Guiding Device for Metal Surface Defect Detection Instrument - Invention Patent Certificate
by Tianchen on 2024-04-07
Read more
Patent certificate for invention of cold drawing method for medium carbon steel bars
by Tianchen on 2024-04-07
Read more
Patent certificate for invention of low-carbon alloy steel spheroidization method
by Tianchen on 2024-04-07
Read more

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