GB/T 34480-2017喷射成形锭坯锻制的铝合金锻件国家标准
英文:Aluminum alloys die forgings, hand forgings, and rolled ring forgings from spray-formed billet GB/T 34480-2017介绍: 国家标...
英文:Aluminum alloys die forgings, hand forgings, and rolled ring forgings from spray-formed billet GB/T 34480-2017介绍: 国家标...