WROUGHT IRON AND MIRROR CAST IRON IN INGOTS INGOTS OR OTHER PRIMARY FORMS: - WROUGHT IRON UNALLOYED WITH 0.5% OR LESS BY MASS OF PHOSPHORUS: - - WITH LESS THAN 0.1% BY MASS OF MANGANESE
WROUGHT IRON AND MIRROR CAST IRON IN INGOTS INGOTS OR OTHER PRIMARY FORMS: - WROUGHT IRON UNALLOYED WITH 0.5% OR LESS BY MASS OF PHOSPHORUS: - - WITH LESS THAN 0.1% BY MASS OF MANGANESE