GA 306.2-2007.Flame retardant and fire resistive cables-Classification and requirement for flame ret...
GA公共安全标准
GA公共安全标准
GA公共安全标准
GA 306.2-2001 阻燃及耐火电缆:塑料绝缘阻燃及耐火电缆分级和要求第2部分:耐火电缆
GA 306.2-2001.Flame Retardant and Fire Resistive cables:Classification and requirement for flame ret...