11. Among Friday's gainers were some high technology issues and non-ferrous metals . 12. :Dhokra is non ferrous metal casting using the lost-wax casting technique. 13. Today, more aluminum is produced than all other non-ferrous metals combined. 14. Among Friday's losers were Sony, NEC and Hitachi, brokerages and non-ferrous metal issues. 15. Landmines often contain enough ferrous metal to be detectable with appropriate magnetic sensors. 16. Kapan has been a major centre for the production of many non-ferrous metals . 17. Anglovaal has iron ore, ferrous metals , mineral sands and gold assets. 18. The earliest stud finders detected ferrous metals using compasslike pivoting magnets. 19. In addition, the company generates significant quantities of non-ferrous metal as a byproduct. 20. Major trade items are seafood products, timber products, and ferrous metals .
