共 7 条
[1]
BRANTLEY FE, 1962, 6113 BUR MIN REP INV
[2]
HUTTL JB, 1961, ENG MIN J, V162, P82
[3]
KLEIN L, 1961, J METL, V13, P545
[4]
ODEGOV EV, 1958, B CVETNOJ METALLURGI, P20
[5]
WOLF, Patent No. 928672
[6]
GMELINS HANDBUCH
[7]
1959, Patent No. 91406