共 50 条
- [1] CR-155: A NEW HIGH-CONDUCTIVITY, HIGH-STRENGTH COPPER FOR THE WIRE INDUSTRY. Wire journal, 1979, 12 (09): : 132 - 134
- [2] Grain Strength of Aggregates and Their Effect on Concrete Strength. Deutscher Ausschuss fuer Stahlbeton, 1974, (245): : 1 - 46