2008

Release time:

2024-05-27

Through the United States "UL" certification<br>Jianzhi Group closely combines theory and practice in the field of science and technology. According to the needs of pipe thread detection, the "portable pipe fitting angle detection device and its accessories" invented by Jianzhi Group was patented on January 28, 2009.</br>

2008 through the United States "UL" certification

Keywords:

2009

2007

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