The certification. The Certification of the Quality Control System, in compliance with UNI EN ISO 9001; and the "FPC" Factory Production Control, in compliance with the harmonized standards of the sector and the Construction Products Regulation "CPR" 305/2011 "; they are issued by accredited external bodies, which, thanks to their periodic audits, have been carrying out control activities for years, relating to the “System” and the “Process”, certifying in fact the constancy of satisfaction with the standard requirements.