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