This standard specifies the sampling, inspection and determination of inspection results for import and export metallurgical rolls. This standard applies to the import and export of cast rolls (including cast iron rolls, cast steel rolls), forged rolls (including forged steel rolls, forged semi-steel rolls, forged white iron rolls), continuous casting composite rolls and other metallurgical rolls for strip rolling. A smooth roll of the above-mentioned unperforated profile steel roll.
SN/T 1409-2004 history
2004SN/T 1409-2004 Rules for the inspection of the performance requirements of mill rolls for import and export