The major metal minerals recycled include tantalum niobite, fine spar, tantalum aeschynite, wolframite and scheelite, which have large density of generally 5 to 7.
的金属矿物钽铌铁矿、细晶石、钽易解石、黑钨矿、白钨矿，密度比较大，一般为5~7。
The major metal minerals recycled include tantalum niobite, fine spar, tantalum aeschynite, wolframite and scheelite, which have large density of generally 5 to 7.
的金属矿物钽铌铁矿、细晶石、钽易解石、黑钨矿、白钨矿，密度比较大，一般为5~7。
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