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Bureau Technical Inspection company (further BTI) has been established in 2016 as a legal successor of the T.I.S International OÜ in welders, welding operators certification and welding procedures inspection. Our company offers certification for welders according to standards, EN ISO 9606-1, EN ISO 9606-2 “Welders certification” and welding operators EN 14732 “Welding operators certification” and welding procedures inspection according to standards EN ISO 15607, EN ISO 15614-1.