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Australia |
Weld Australia |
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Croatia |
HRVATSKO DRUSTVO ZA TEHNIKU ZAVARIVANJA |
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Czech Republic |
CZECH WELDING SOCIETY ANB |
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France |
ASSOCIATION FRANÇAISE DU SOUDAGE |
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Germany |
DVS PersZert |
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Hungary |
MAGYAR HEGESZTÉSTECHNIKAI ÉS ANYAGVIZSGÁLATI EGYESÜLÉS |
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Italy |
IIS CERT srl |
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Kazakhstan |
Kazakhstan Welding Association - Kazweld |
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Poland |
Instytut Spawalnictwa |
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Romania |
ASR CERT Pers |
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Slovakia |
Vyskumny Ustav Zvaracsky-Priemyselny Institut SR |
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Slovenia |
SLOVENSKO DRUSTVO ZA VARILNO TEHNIKO |
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United kingdom |
TWI Certification Ltd. |
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