Home / Standards / GB/T 6661-1986 GB/T 6661-1986 Active Nipples for insert earphones 插入式耳机的乳头状接头 Standard Type GBT ICS 33.160.50 CCS M72 Status 现行 Issue Date 1986-07-31 Implementation 1987-08-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A