GB/T 11313.4-2007
射频连接器 第4部分: 外导体内径为16mm (0.63in)、特性阻抗为50Ω、螺纹连接的射频同轴连接器 (7-16型)
Radio-frequency connectors- Part 4: R.F.coaxial connectors with inner diameter of outer conductor 16mm (0.63in) with screw lock- Characteristic impedance 50 ohms (Type 7-16)