DIN EN ISO 10893-4:2011-07 Non-destructive testing of steel tubes - Part 4: Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections (ISO 10893-4:2011); German version EN ISO 10893-4:2011
2011DIN EN ISO 10893-4:2011-07 Non-destructive testing of steel tubes - Part 4: Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections (ISO 10893-4:2011); German version EN ISO 10893-4:2011
2011DIN EN ISO 10893-4:2011 Non-destructive testing of steel tubes - Part 4: Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections (ISO 10893-4:2011); German version EN ISO 10893-4:2011