duralumin sheet硬铝板
duralumin powder硬铝粉
Nippon duralumin日本高强度铝铜镁合金
duralumin plate硬铝板;杜拉铝板
duralumin alclad杜拉铝覆板
Aluminium Duralumin杜拉铝
Duralumin alloy杜拉铝合金
super duralumin超级硬铝
LY12 duraluminLY12硬铝
N（名词） a light strong aluminium alloy containing 3.5–4.5 per cent of copper with small quantities of silicon, magnesium, and manganese; used in aircraft manufacture (造飞机等用的)杜拉铝 [trademark]