159 GB/T 14515-1993 有贯穿连接的单、双面挠性印制板技术条件 Specification for single and double sided flexible printed boards with through connections 160 GB/T 14516-1993 无贯穿连接的单、双面挠性印制板技术条件 Specification for single and double sided flexible printed boards without through connections 161 GB/T 15301-1994 气体激光器总规范 General specification for gas lasers 162 GB/T 15426-1994 收讯放大电子管空白详细规范 Blank detail specification for receiving tubes 163 GB/T 15427-1994 彩色显示管测试方法 Methods of measurement of colour display tubes 164 GB/T 15648-1995 辉光放电显示管测试方法 Methods of measurement for glow discharge display tubes