Home / Standards / GB/T 39655.1-2020 GB/T 39655.1-2020 Active Shipbuilding—Ship screw propellers—Manufacturing tolerances—Part 1:Propellers of diameter greater than 2.5m 造船 船用螺旋桨 制造公差 第1部分:直径大于2.5m的螺旋桨 Standard Type GBT ICS 47.020.01 CCS U04 Status 现行 Issue Date 2020-12-14 Implementation 2021-07-01 Responsible Dept 国家标准委 Drafting Unit N/A