[国外标准] BS EN ISO 8491-2004 Metallic materials. Tube (in full section). Bend test.
[国外标准] BS EN 8491-2008 Method for assessment of fire integrity of large diameter power cables for use as co
[航空标准] HB 8491-2014 民用飞机货舱防火要求
[国家标准] GB/T 8491-2009 高硅耐蚀铸铁件
[国家标准] GB 8491-1987 高硅耐蚀铸铁件