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For the produced special bolts and nuts M20 and M24 used for bolting elements of heading linings, we possess the certificates entitling us to mark the goods with the safety mark issued by a domestic certifying institution.
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Qualification Certificates of Products |
For the fastenings elements and joints of the track structure we possess the Qualification Certificate of the Product - HPQ, issued by the Deutsche Bahn AG and the certificates of proper domestic railway institutions.
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