Home / Standards / GB/T 42637-2023 GB/T 42637-2023 Active Specification for oceanic polymetallic sulfide resources survey 大洋多金属硫化物资源调查规范 Standard Type GBT ICS 07.060 CCS A45 Status 现行 Issue Date 2023-05-23 Implementation 2023-09-01 Responsible Dept 自然资源部(海洋) Drafting Unit N/A