Except as allowed by 13.4, the required markings for plate 6 mm. and under in thickness shall be by paint marking or by steel die stamping using low-stress (either round-nose or interrupted-dot) impressions.
Except as allowed by 13.4, the required markings for plate 6 mm. and under in thickness shall be by paint marking or by steel die stamping using low-stress (either round-nose or interrupted-dot) impressions.