GB/T 39655.1-2020造船船用螺旋桨制造公差第1部分:直径大于2.5m的螺旋桨标准
英文:Shipbuilding—Ship screw propellers—Manufacturing tolerances—Part 1:Propellers of diameter greater than 2.5m GB/T 3965...
英文:Shipbuilding—Ship screw propellers—Manufacturing tolerances—Part 1:Propellers of diameter greater than 2.5m GB/T 3965...