The certificates

The certificate attesting the quality requirements for welding according to
PN-EN ISO 3834-3:2007.

 

ISO 3834 Stal-tech

 

ISO 3834 Stal-tech

ISO 3834 Stal-tech

 

 

The certificate of conformity of the factory production control attesting the norm
EN 1090-1:2009+A1:2011.

 

EN 1090 Stal-tech

 

EN 1090 Stal-tech

 

EN 1090 Stal-tech

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