Home / Standards / GB 3107.7-1991 GB 3107.7-1991 Abolished Explosive rocket signal for ships 船用声响火箭信号 Standard Type GB ICS 47.080 CCS U27 Status 废止 Issue Date 1991-05-22 Implementation 1992-03-01 Responsible Dept 国家标准委 Drafting Unit N/A