Home / Standards / GB 6257-86 GB 6257-86 Blank detail specification for low-power transmitting tubes with anode dissipation power not exceeding 1 kW 阳极耗散功率不大于1KW的小功率发射管空白详细规范 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A