• VWSCO Engineering – Pensylvania USA,
  • National Certified Testing Lab – Pensylvania USA
  • Association of Transport – Hongaria
  • United States Testing Corp. Inc – New Jersey USA
  • Roads and Traffic Authority of New South – New South Wales Australia
  • Koberuko Science Research Institute Inc. – Kobe Jepang
  • TUV-CE Convormite Standards Europeen – Berlin
  • China National Vehicle Inspection Lab. – Beijing China
  • National Testing Of Canada – Quebec Canada
  • University of Thailand Lab. – Bangkok Thailand

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