Szutest Technical Inspection and Certification hereby confirms that the manufacturer of the above mentioned products,has determined and applied a quality assurance system ,that satisfies the requirements of directive97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States conceming pressure equipment ,Annex I sec.4.3. this quality assurance system has been subjected to a specific assesement for material for material acc,to directive 97/23/EC with regard to the materials mentioned above.