Home / Standards / GB/T 37455-2019 GB/T 37455-2019 Active Hydraulic ring-beam jacking system for offshore platform 海洋平台液压环梁升降装置 Standard Type GBT ICS 47.020.99 CCS U35 Status 现行 Issue Date 2019-05-10 Implementation 2019-12-01 Responsible Dept 国家标准委 Drafting Unit N/A