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Carrières du Hainaut was the first ornamental stone company to receive Technical Approval for its overall operations with a certificate issued by the Belgian Association for Technical Approval in Construction.
This label is a solid guarantee for architects and users of blue stone.
Moreover, the quality assurance system at Carrières du Hainaut has been recognised as conforming to the requirements of the ISO 9001 standards by the BCCA.

Valid until 31.12.2011
Belgian Association for Technical Approval in Construction c/o Ministry of Communications and Infrastructure Administration of the Regulation of Traffic and Infrastructure, Quality Assurance Department. Approval and Specifications Department, rue de la Loi 155 B - 1040 Brussels Tel.: 02/287.31.53, Fax: 02/287.31.51
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