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GÖKTÜRK GROUP ÇELİK YAPI İNŞAAT LİMİTED ŞİRKETİ

PGC-2026042903

ISO 45001 İSGYS

prensip global certification

April 29, 2026

April 29, 2027

VALID

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ULAK PATENT (
ULAK Intellectual Property & Advanced Technologies) is not a product certification body or an approval authority.”

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