21. Such percentages for more valuable non-ferrous metals may be significantly greater. 22. In addition, the company generates significant quantities of non-ferrous metal as a byproduct. 23. The earliest stud finders detected ferrous metals using compasslike pivoting magnets. 24. Anglovaal has iron ore, ferrous metals , mineral sands and gold assets. 25. _MINING . Military units run nearly 150 major mines producing coal and ferrous metals . 26. Magnets from electronics are shown used to gather the smallest of ferrous metal scraps. 27. NISCO involves the pressing and smelting of ferrous metals and sales of steel materials. 28. Gainers included securities stocks and some steel and non-ferrous metals . 29. Hamanaka, who gave his occupation as unemployed, formerly headed Sumitomo's non-ferrous metals trading department. 30. Other parts of the ship were constructed from non-ferrous metals for a similar reason.
