铜镍合金冷凝管
condensation tube of Cu-Ni alloy
标准冷凝管合金
standard condenser tube alloy
白铜冷凝管
white copper condenser tube
仿金铜合金
gold imitating copper alloy
黄铜冷凝管
yellow copper condenser tube
面心立方铜金合金
face-centered cubic copper-gold alloy
铜合金金属型
copper alloy permanent mold