GB/T 39655.2-2020 造船 船用螺旋桨 制造公差第2部分:直径在0.8m至2.5m的螺旋桨
GB/T 39655.2-2020.Shipbuilding一Ship screw propellers-Manufacturing tolerances-Pa...
国家标准2023.08.06
GB/T 39655.2-2020.Shipbuilding一Ship screw propellers-Manufacturing tolerances-Pa...
国家标准2023.08.06
GB/T 39655.1-2020.Shipbuilding-Ship screw propellers-Manufacturing tolerances-Pa...
国家标准2023.08.05
GB/T 39853.2-2021.Power quality measurement in power supply systems-Part 2 :Func...
国家标准2023.08.05
GB/T 39854-2021.Specification of performance evaluation for photovoltaic power s...
国家标准2023.08.05
GB/T 39828-2021.Test method for determining elastic modulus of thick ceramic coa...
国家标准2023.08.05
GB/T 39826-2021.Fine ceramics-Determining flexural bond strength-Four-point bend...
国家标准2023.08.05
GB/T 39819-2021.Conveyor belts-Determination of minimum transition distance on t...
国家标准2023.08.05
GB/T 39817-2021.Conveyor belts-Propane burner mid-scale flammability test method...
国家标准2023.08.05
GB/T 39813-2021.Conveyor belts-Guidelines for storage and handling.1范围GB/T 39813...
国家标准2023.08.05
GB/T 26958.28-2020.Geometrical product specifications (GPS)一Filtration-Part 28:...
国家标准2023.08.05