Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Silicon, pp. 1123-1128 PDF (495.5 KB)
1128 MINERALS YEARBOOK, 1972 former capacity of 48 megav~l-t amperes and was built at a cost of about $4.2 million. - From 1966 to the end of 1971 South African exports of ferrosilicon were reduced drastically in order to meet the needs of the expanding domestic market. However, with the start of new facilities, producers predict an increase of ferrosilicon exports in excess of $7 million per year.
http://rightsstatements.org/vocab/NoC-US/1.0/| As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright