In the in-house laboratory, we have the possibility of self-monitoring our products. The most modern equipment is used for this purpose to ensure the compliance with the strict quality criteria. The high demands placed on the aggregates make comprehensive quality assurance within the framework of certification essential. The in-house inspections ensure that the required quality characteristics are fulfilled. At the same time, they guarantee the high-quality standard of the different production lines. We also offer this service to our customers in the form of external monitoring. In order to convince yourself of our high quality, you can find our quality protection certificate in the download section of our website.