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 VCA
/ VVA
For the measurements on location
is our staff VCA / VVA certified
 DIN
24537
Production standard for gratings
DIN
Production standard for stair
treads
 NEN-ISO
1461
The specifications and inspection
methods for hot dip galvanization
NEN 5254
The industrial process of organic
coatings on hot dip galvanized or spray-galvanized products (duplex-systems)
 RAL-Gutenzeichen
638
The industrial and inspection
standard for the production of gratings
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