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Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. Quality Control

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  • China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
    Standard:ISO 9001:2015
    China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
    Standard:ISO 14001: 2015
    China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
    Standard:SGS
    China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
    Standard:SGS
    China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
    Standard:CE
    Raw material quality control:
    • Thickness tolerance re-check
    • Yield point and tensile strength testing in-house
    • Third party inspection are welcome
    • Supply traceable mill certificate.
    Structural steel fabrication quality control:
    • 100% testing dimension tolerance <3mm
    • 20% sample welding line ultrasonic testing, no fault, full penetration
    • 20% magnetic powder testing, no bubble, no defect, Smooth and Full
    • Supply third-party inspection assistance.
    Anti-corrosion system quality control:
    • Shot blasting to reach grade Sa. 2.5, surface metal luster, no rust, no oil dirt, no welding spatter, Roughness >75um
    • Apply primer paint within 4 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75μm.
    Pre-assembly testing the connection details:

    For special shaped steel structures components, we apply pre-assembly test in workshop before package and delivery.


    Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 0

    Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 1

    Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 2

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    About Us

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    Company Profile Factory Tour Quality Control
    certifications
    • China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
      ISO 9001:2015
      China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
      ISO 14001: 2015
      China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
      SGS
      China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
      SGS
      China Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. certifications
      CE
      Raw material quality control:
      • Thickness tolerance re-check
      • Yield point and tensile strength testing in-house
      • Third party inspection are welcome
      • Supply traceable mill certificate.
      Structural steel fabrication quality control:
      • 100% testing dimension tolerance <3mm
      • 20% sample welding line ultrasonic testing, no fault, full penetration
      • 20% magnetic powder testing, no bubble, no defect, Smooth and Full
      • Supply third-party inspection assistance.
      Anti-corrosion system quality control:
      • Shot blasting to reach grade Sa. 2.5, surface metal luster, no rust, no oil dirt, no welding spatter, Roughness >75um
      • Apply primer paint within 4 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75μm.
      Pre-assembly testing the connection details:

      For special shaped steel structures components, we apply pre-assembly test in workshop before package and delivery.


      Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 0

      Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 1

      Qingdao Tsin Steel Structure Construction Technology Co.,Ltd. quality control 2

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      Room 709, Building 5, No. 176 Jufeng Road, Qingdao, Shandong, China

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      86--13969825647

      +86 13969825647
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