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 39949.3-2021
Hydraulic fluid power—Mounting dimensions for accessories of single rod cylinder—Part 3: 16 MPa compact series with bores from 250mm to 500mm
GB/T 39949.2-2021
Hydraulic fluid power—Mounting dimensions for accessories of single rod cylinder—Part 2:16 MPa compact series with bores from 25 mm to 220 mm
GB/T 39949.1-2021
Hydraulic fluid power—Mounting dimensions for accessories of single rod cylinder—Part 1:16 MPa medium and 25 MPa series
GB/T 39926-2021
Hydraulic fluid power—Filter element test methods—Thermal conditioning and cold start-up simulation
GB/T 39831-2021
Hydraulic fluid power—Four-port modular stack valves and four-port directional control valves, sizes 02, 03, 05, 07, 08 and 10—Clamping dimensions
GB/T 21432-2021
Graphite pressure vessels
GB/T 19934.1-2021
Hydraulic fluid power—Fatigue pressure testing of metal pressure-containing envelopes—Part 1: Test method
GB/T 19672-2021
Pipeline valves—Technical specification
GB/T 14383-2021
Forged fittings, socket-welding and threaded
GB/T 12237-2021
Steel ball valves for petroleum, petrochemical and allied industries
GB/T 4214.9-2021
Test method for noise of household and similar electrical appliances—Particular requirements for fans
GB/T 17268-2020
Non-refillable steel welded cylinders for industrial use
GB/T 5100-2020
Welded steel gas cylinders
GB/T 11638-2020
Acetylene cylinders
GB/T 20801.3-2020
Pressure pipng code—Industrial piping—Part 3:Design and calculation
GB/T 20801.4-2020
Pressure piping code—Industrial piping—Part 4:Fabrication and assembly
GB/T 20801.2-2020
Pressure piping code—Industrial piping—Part 2:Materials
GB/T 20801.6-2020
Pressure piping code—Industrial piping—Part 6:Safeguarding
GB/T 20801.5-2020
Pressure piping code—Industrial piping—Part 5:Inspection and testing
GB/T 14905-2020
Rubber and plastics hoses—Determination of adhesion between components