GB/T 42792-2024航空用铝合金管、棒、型材及线材通用技术规范国家标准
英文:General technical specification of aluminium alloy tubes, rods, profiles and wires for aviation products GB/T 42792-2...
英文:General technical specification of aluminium alloy tubes, rods, profiles and wires for aviation products GB/T 42792-2...