Each of our products is proudly made by specialized professionals.

Alter is certified by TÜV SÜD Poland, we’ve got:

Certificate no. 2527-CPR-1A.336.00 of Conformity of the factory production Control
according to standards of EN1090-1:2009+A1:2011.

Certificate no. TSP-2834-373.00 of welding processes according to
PN-EN ISO 3834-3:2007.

All the welders have up to date EN 9606-1 and EN 9606-2 certificates.

Personnel of welding coordination EN ISO 14731

NDT Personnel EN ISO 17635