组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 20081.1-2021
Pneumatic fluid power—Compressed air pressure regulators and filter-regulators—Part 1:Main characteristics to be included in literature from suppliers and product-marking requirements
GB/T 15382-2021
General specifications of gas cylinder valves
GB/T 40333-2021
Vacuum gauges—Definitions and specifications for quadrupole mass spectrometers
GB/T 37162.3-2021
Hydraulic fluid power—Monitoring the level of particulate contamination of the fluid—Part 3:Use of the filter blockage technique
GB/T 15242.4-2021
Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 4:Dimensions and tolerances of bearing rings groove
GB/T 15242.3-2021
Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 3:Dimensions and tolerances of groove for co-axial seals
GB/T 6577-2021
Types, dimensions and tolerances of groove for seals with bearing rings for hydraulic cylinders piston
GB/T 2351-2021
Fluid power systems and components—Outside diameters of tubes and inside diameters of hoses
GB/T 786.3-2021
Fluid power systems and components—Graphical symbols and circuit diagrams—Part 3: Symbol modules and connected symbols in circuit diagrams
GB/T 786.1-2021
Fluid power systems and components—Graphical symbols and circuit diagrams—Part 1: Graphical symbols
GB/T 40079-2021
Classification system and qualification procedures for fugitive emission type testing of valves
GB/T 40077-2021
Reciprocating positive displacement pumps and pump units—Technical requirements
GB/T 39986-2021
Pumps—Testing—Submersible mixers for wasterwater and similar applications
GB/T 39984-2021
Pump system energy assessment
GB/T 24596-2021
Ductile iron pipes and fittings—Polyurethane coatings
GB/T 11640-2021
Seamless aluminum alloy gas cylinders
GB/T 2877.2-2021
Hydraulic two-port slip-in cartridge valves—Part 2: Mounting dimensions
GB/T 39959-2021
Liquid pumps and pump units—Noise test code—Grades 2 and 3 of accuracy
GB/T 39956.2-2021
Pneumatic fluid power—Electro-pneumatic pressure control valves—Part 2: Test methods to determine main characteristics to include in the supplier's literature
GB/T 39956.1-2021
Pneumatic fluid power—Electro-pneumatic pressure control valves—Part 1:Main characteristics to include in the supplier's literature