Certificates

  • China Zhengzhou Hanyun Construction Machinery Co.,Ltd certification
    CE
  • China Zhengzhou Hanyun Construction Machinery Co.,Ltd certification
    ISO9001
  • China Zhengzhou Hanyun Construction Machinery Co.,Ltd certification
    ISO14001
  • China Zhengzhou Hanyun Construction Machinery Co.,Ltd certification
    Export license
  • China Zhengzhou Hanyun Construction Machinery Co.,Ltd certification
    Business License

QC Profile

Raw materials purchasing

1. Raw materials are purchased from big qualifeid factories in China;

2. Physical inspection on raw materials like thickness, length, diameter, etc;

3. Chemical Inspection on steel components.

In-processing 

1. UT testing on welding joints;

2. Check details of semi-finished products.

After-processing

1. Test running of electrical parts;

2. Trial-installation of main structures and spare parts

 

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