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CN Consulting + Baustoff-Vertriebsgesellschaft mbH
Vierlander Str. 7
21502 Geesthacht
Phone. +49 4152 40 81
Fax: +49 4152 812 22


The quality of our expanded clay is multiply certified

The manufacturing quality of products made of expanded clay is documented by a certified quality management system in accordance with DS/EN ISO 9001 and the environmental management standard DS/EN ISO 14001, as well as application-oriented analyses that are very important from the customer’s point of view. These also include third-party monitoring and research contracts with renowned institutes and universities. The following list of institutions shows where our products are analysed and tested and how very important it is to us that all areas of operation are covered.


ISO certifications in accordance with DIN EN 9001/14001

Phone. +49 4152 40 81 · Fax: +49 4152 812 22 ·
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