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铝及铝合金三项标准,CB/T16474-1996变形铝及铝合金牌号表示方法、GB/T16475-1996变形铝及铝合金状态代号、GB/T3190-1996变形铝及铝合金化学成分,
Aluminum and aluminum alloy three standards, CB / T16474-1996 deformation of aluminum and aluminum alloy grades that GB / T16475-1996 deformation of aluminum and aluminum alloy code, GB / T3190-1996 deformed aluminum and aluminum alloy chemical composition,