Home / Standards / GB/T 11631-1989 GB/T 11631-1989 Abolished Technical specifications of manufacture of pressure hull structure for submersibles and underwater equipments 潜水器和水下装置耐压结构制造技术条件 Standard Type GBT ICS 47.020.50 CCS U18 Status 废止 Issue Date 1989-09-21 Implementation 1990-04-01 Responsible Dept 国家标准委 Drafting Unit N/A