Information for Investors
The main aktivity of the company Vaclav Kaizr – Kovovyroba is the production and assembly of steel constructions and structures.
The company holds the following certificates:
- ČSN EN ISO 9001: 2016 - Quality management system
- ČSN EN ISO 14001: 2016 - Environmental management system
- ČSN EN ISO 3834-2: 2006 - Quality requirements for fusion welding of metallic materials - Part 2: Higher quality requirements
- ČSN EN 1090-2: 2019 - Production and assembly of steel structures (successor to the Large Certificate of Competence)
We mainly use structural steels of quality S235 and S355 for the production of steel structures.
Execution of welding works:
- welders hold European tests according to ČSN EN ISO 9606-1
- welding methods 111 - Manual arc welding with a coated electrode and 135 - Arc welding with a melting electrode in active gas - MAG
- the company owns several WPQRs - Welding Procedure Qualification Record according to ISO 15614-1: 2004
- welds are performed according to WPS - Welding Procedure Specification
- welding engineer - welding supervision according to ČSN EN ISO 14731
- visual inspection of welds, level 2
- quality of welds in the highest grade B according to ČSN EN ISO 5817
More information can be found in the steel construction section.