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At STROJÍRNY POLDI, a.s., exacting attention is paid to quality. All rolls are subject to specific tests throughout the entire production cycle.

These tests include:

  • Ultrasonic inspection for inherent defects
  • Inspection of the purity and structure of the steel
  • Inspection of hardness of the hardened layer with portable hardness testers by Equotip, Vickers, Shore and Rockwell
  • Measuring of internal stress levels by acoustic emission method
  • Dimensional checks and surface quality inspection
  • Other tests according to customer request