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 42601.3-2023
Petroleum, petrochemical and natural gas industries—Lubrication, shaft-sealing and control-oil systems and auxiliaries—Part 3: General-purpose oil systems
GB/T 42601.1-2023
Petroleum, petrochemical and natural gas industries—Lubrication, shaft-sealing and control-oil systems and auxiliaries—Part 1: General requirements
GB/T 25151.6-2014
Fabrication and inspection method for high pressure urea equipment―Part 6: Helium leakage test method for urea high pressure equipment
GB/T 31201-2014
Complex fertilizer (slow control release) production complete equipment
GB/T 26962-2011
Specifications for high-frequency electromagnetic field comprehensive water treatment device
GB/T 25152-2010
Specification for liquid-liquid hydrocyclone separators
GB/T 25151.5-2010
Fabrication and inspection method for high pressure urea equipment - Part 5: Ammonia leakage test method for urea high pressure equipment
GB/T 25151.4-2010
Fabrication and inspection method for high pressure urea equipment - Part 4: Intergranular corrosion tendency test specimen preparation for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade
GB/T 25151.3-2010
Fabrication and inspection method for high pressure urea equipment - Part 3: Intergranular corrosion tendency test for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade
GB/T 25151.2-2010
Fabrication and inspection method for high pressure urea equipment - Part 2: Selective corrosion examination and metallography examination for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade
GB/T 25151.1-2010
Fabrication and inspection method for high pressure urea equipment - Part 1: Ultrasonic examination on the automatic strip overlay welds of stainless steel