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sun, Total:500 items.

In the international standard classification, sun involves: Medical equipment, Solar energy engineering, Miscellaneous domestic and commercial equipment, Medical sciences and health care facilities in general, Protective equipment, Farm buildings, structures and installations, Electronic tubes, Vocabularies, Semi-manufactures of timber, Services, (No title), Geology. Meteorology. Hydrology, Agricultural machines, implements and equipment, Elements of buildings, Lamps and related equipment, Insulating materials, Machine tool systems, Road engineering, Iron and steel products, Glass, Semiconducting materials, Optoelectronics. Laser equipment, Galvanic cells and batteries, Graphic technology, Fishing and fish breeding, Domestic, commercial and industrial heating appliances, Protection of and in buildings, Installations in buildings, Products of non-ferrous metals, Paints and varnishes, Inorganic chemicals, Rectifiers. Convertors. Stabilized power supply, Non-ferrous metals, Body care equipment, Astronomy. Geodesy. Geography, Construction materials, Electrical accessories, Beverages, Switchgear and controlgear, Metrology and measurement in general, Plastics, Optics and optical measurements, Test conditions and procedures in general, Rubber and plastics products, Transport, Company organization and management, Wind turbine systems and other alternative sources of energy, Radiation measurements, Electrical engineering in general, Products of the chemical industry.


Association Francaise de Normalisation, sun

  • NF X31-003:1998 Qualité du sol - Description du sol
  • NF EN ISO 25177:2019 Qualité du sol - Description du sol sur le terrain
  • NF P50-533:2014 Solar energy - Solar thermal collectors - Test methods
  • NF P50-533*NF EN ISO 9806:2017 Solar energy - Solar thermal collectors - Test methods
  • NF EN ISO 9806:2017 Énergie solaire - Capteurs thermiques solaires - Méthodes d'essai
  • NF EN ISO 28258:2013 Qualité du sol - Échange numérique de données relatives au sol
  • NF P50-301:1988 Solar energy. Solar hot water tanks. Measurement of thermal performances.
  • NF ISO 15903:2003 Qualité du sol - Format d'enregistrement des données relatives aux sols et aux sites
  • NF EN ISO 10930:2013 Qualité du sol - Mesure de la stabilité d'agrégats de sols soumis à l'action de l'eau
  • NF P50-105*NF EN ISO 9488:2000 Solar energy - Vocabulary.
  • NF EN ISO 9488:2022 Énergie solaire - Vocabulaire
  • NF P50-510:1985 SOLAR ENERGY. SOLAR COLLECTORS USING HEAT TRANSFER LIQUID. AGEING PROCESS.
  • NF P50-511:1985 SOLAR ENERGY. SOLAR COLLECTORS USING HEAT TRANSFER LIQUID. SUITABILITY FOR USE.
  • NF P50-102:1983 SOLAR ENERGY. VOCABULARY. PART 2. SOLAR COLLECTORS FOR HEAT CONVERSION.
  • NF EN ISO 15175:2018 Qualité du sol - Caractérisation des sols pollués en relation avec la protection des eaus souterraines
  • NF EN ISO 16072:2011 Qualité du sol - Méthodes de laboratoire pour la détermination de la respiration microbienne du sol
  • NF P50-502:1985 Solar energy. Solar collector using heat transfer liquid. Mechanical characteristics. Definitions. Testing.
  • NF P94-055:1993 Sols : reconnaissance et essais - Détermination de la teneur pondérale en matières organiques d'un sol - Méthode chimique.
  • NF S77-114:1997 Personal eye protection. Sunglasses and sunglare filters for general use.
  • NF P50-530-1*NF EN 12975-1+A1:2010 Thermal solar systems and components - Solar collectors - Part 1 : general requirements
  • NF P50-530-1/IN1*NF EN 12975-1/IN1:2010 Thermal solar systems and components - Solar collectors - Part 1 : general requirements
  • NF EN 50461:2006 Cellules solaires - Spécifications particulières et données de produit pour les cellules solaires en silicium cristallin
  • NF P50-530-2:2006 Thermal solar systems and components - Solar collectors - Part 2 : test methods.
  • NF P50-530-1:2006 Thermal solar systems and components - Solar collectors - Part 1 : general requirements.
  • NF C57-202*NF EN 50461:2006 Solar cells - Datasheet information and product data for crystalline silicon solar cells
  • NF EN 12975-1/IN1:2010 Installations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 : exigences générales
  • NF EN 12977-1:2018 Installations solaires thermiques et leurs composants - Installations assemblées à façon - Partie 1 : exigences générales pour chauffe-eau solaires et installations solaires combinées
  • NF EN 12977-2:2018 Installations solaires thermiques et leurs composants - Installations assemblées à façon - Partie 2 : méthodes d'essai pour chauffe-eau solaires et installations solaires combinées
  • NF S77-114-1*NF EN ISO 12312-1:2013 Eye and face protection - Sunglasses and related eyewear - Part 1: sunglasses for general use
  • NF EN ISO 14240-2:2011 Qualité du sol - Détermination de la biomasse microbienne du sol - Partie 2 : méthode par fumigation-extraction
  • NF EN 12977-4:2018 Installations solaires thermiques et leurs composants - Installations assemblées à façon - Partie 4 : méthodes d'essai des performances pour chauffe-eau solaires et installations solaires combinées
  • NF EN ISO 877-3:2018 Plastiques - Méthodes d'exposition au rayonnement solaire - Partie 3 : Exposition intensifiée par rayonnement solaire concentré
  • NF P50-530*NF EN 12975:2022 Solar collectors - General requirements
  • NF EN 12975:2022 Capteurs solaires - Exigences générales
  • NF EN ISO 11074/A1:2020 Qualité du sol - Vocabulaire - Amendement 1
  • NF S77-114-1/A1*NF EN ISO 12312-1/A1:2015 Eye and face protection - Sunglasses and related eyewear - Part 1 : sunglasses for general use
  • NF EN ISO 14240-1:2011 Qualité du sol - Détermination de la biomasse microbienne du sol - Partie 1 : méthode par respiration induite par le substrat
  • NF EN 50513:2009 Tranches de silicium solaires - Fiche technique et information produit sur les tranches au silicium cristallin pour la fabrication de cellules solaires

Taiwan Provincial Standard of the People's Republic of China, sun

  • CNS 15011-2006 Solar energy - Vocabulary (Solar thermal)
  • CNS 15067-2007 Personal eye protection - Sunglasses and sunglare filters for general use and filters for direct observation of the sun
  • CNS 15033-2006 Solar energy - Specification and classification of instruments for measuring hemispherical solar and direct solar radiation
  • CNS 12555-1989 Solar Water Heater for Dwellings
  • CNS 15125-3-2007 Solar heating - Domestic water heating systems - Part 3 : Performance test for solar plus supplementary systems

Group Standards of the People's Republic of China, sun

Korean Agency for Technology and Standards (KATS), sun

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, sun

Professional Standard - Light Industry, sun

International Organization for Standardization (ISO), sun

  • ISO 24194:2022/FDAmd 1:2023 Solar energy
  • ISO 9806:2013 Solar energy.Solar thermal collectors.Test methods
  • ISO/AWI 9806 Solar energy — Solar thermal collectors — Test methods
  • ISO 9806:2017 Solar energy - Solar thermal collectors - Test methods
  • ISO/CD 9806:2023 Solar energy — Solar thermal collectors — Test methods
  • ISO 9488:2022 Solar energy — Vocabulary
  • ISO 9060:2018 Solar energy — Specification and classification of instruments for measuring hemispherical solar and direct solar radiation
  • ISO 19467:2017 Thermal performance of windows and doors - Determination of solar heat gain coefficient using solar simulator
  • ISO 12312-1:2022 Eye and face protection — Sunglasses and related eyewear — Part 1: Sunglasses for general use
  • ISO 9488:1999 Solar energy - Vocabulary
  • ISO 12312-1:2013 Eye and face protection.Sunglasses and related eyewear.Part 1: Sunglasses for general use
  • ISO 9845-1:2022 Solar energy — Reference solar spectral irradiance at the ground at different receiving conditions — Part 1: Direct normal and hemispherical solar irradiance for air mass 1,5

European Committee for Standardization (CEN), sun

  • EN ISO 9806:2013 Solar energy - Solar thermal collectors - Test methods [Superseded: CEN EN 12975-2]
  • EN ISO 9806:2017 Solar energy - Solar thermal collectors - Test methods
  • EN ISO 9488:2022 Solar energy - Vocabulary (ISO 9488:2022)
  • CEN/TR 16999:2019 Solar energy systems for roofs - Requirements for structural connections to solar panels
  • EN 12975-2:2006 Thermal solar systems and components Solar collectors Part 2: Test methods
  • EN ISO 9488:1999 Solarenergie - Vokabular Solar Energy - Vocabulary Energie Solaire - Vocabulaire ISO 9488:1999
  • FprEN ISO 9488:2021 Solar energy - Vocabulary (ISO/FDIS 9488:2021)
  • FprEN 12975-2021 Solar collectors - General requirements
  • EN ISO 12312-1:2013 Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use
  • EN ISO 12312-1:2022 Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use (ISO 12312-1:2022)

British Standards Institution (BSI), sun

  • BS EN ISO 9806:2013 Solar energy. Solar thermal collectors. Test methods
  • BS EN ISO 9806:2017 Solar energy. Solar thermal collectors. Test methods
  • BS ISO 9060:2018 Solar energy. Specification and classification of instruments for measuring hemispherical solar and direct solar radiation
  • BS EN ISO 9488:2022 Solar energy. Vocabulary
  • BS EN ISO 9488:2000 Solar energy. Vocabulary
  • BS EN 12975-2:2001 Thermal solar systems and components - Solar collectors - Test methods
  • BS EN 12975-2:2006 Thermal solar systems and components - Solar collectors - Test methods
  • BS EN 12975-1:2006 Thermal solar systems and components - Solar collectors - General requirements
  • BS EN 12975-1:2006+A1:2010 Thermal solar systems and components - Solar collectors - General requirements
  • BS DD CEN/TS 12977-2:2010 Thermal solar systems and components - Custom built systems - Test methods for solar water heaters and combisystems
  • PD IEC/TS 62862-1-2:2017 Solar thermal electric plants. General. Creation of annual solar radiation data set for solar thermal electric (STE) plant simulation
  • BS ISO 19467:2017 Thermal performance of windows and doors. Determination of solar heat gain coefficient using solar simulator
  • BS IEC 62862-4-1:2022 Solar thermal electric plants - General requirements for the design of solar power tower plants
  • BS EN 12977-2:2012 Thermal solar systems and components. Custom built systems. Test methods for solar water heaters and combisystems
  • BS EN ISO 12312-1:2022 Eye and face protection. Sunglasses and related eyewear. Sunglasses for general use
  • BS EN ISO 12312-1:2013 Eye and face protection. Sunglasses and related eyewear. Sunglasses for general use
  • BS EN 50461:2006 Solar cells - Datasheet information and product data for crystalline silicon solar cells
  • BS EN ISO 877-3:2018 Plastics. Methods of exposure to solar radiation. Intensified weathering using concentrated solar radiation
  • 20/30402395 DC BS EN ISO 9488. Solar energy. Vocabulary
  • BS ISO 9845-1:2022 Solar energy. Reference solar spectral irradiance at the ground at different receiving conditions - Direct normal and hemispherical solar irradiance for air mass 1,5
  • DD ENV 12977-3-2001 Thermal solar systems and components. Custom built systems. Performance characterisation of stores for solar heating systems
  • BS EN ISO 22975-2:2016 Solar energy. Collector components and materials. Heat-pipes for solar thermal application. Durability and performance
  • BS ISO 19467-2:2021 Thermal Performance of windows and doors. Determination of solar heat gain coefficient using solar simulator - Centre of glazing
  • BS EN 12977-4:2018 Thermal solar systems and components. Custom built systems. Performance test methods for solar combistores
  • BS EN ISO 12312-2:2015 Eye and face protection. Sunglasses and related eyewear. Filters for direct observation of the sun
  • BS EN 50513:2009 Solar wafers - Data sheet and product information for crystalline silicon wafers for solar cell manufacturing
  • BS EN 12975:2022 Solar collectors. General requirements
  • BS EN ISO 877-3:2010 Plastics. Methods of exposure to solar radiation. Intensified weathering using concentrated solar radiation
  • BS DD CEN/TS 12977-1:2010 Thermal solar systems and components - Custom built systems - General requirements for solar water heaters and combisystems

KR-KS, sun

ES-UNE, sun

  • UNE-EN ISO 9806:2020 Solar energy - Solar thermal collectors - Test methods (ISO 9806:2017)
  • UNE-EN ISO 9488:2022 Solar energy - Vocabulary (ISO 9488:2022)
  • UNE-EN ISO 12312-1:2022 Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use (ISO 12312-1:2022) (Endorsed by Asociación Española de Normalización in September of 2022.)
  • UNE-EN 12975:2022 Solar collectors - General requirements

German Institute for Standardization, sun

  • DIN EN ISO 9806:2018-04 Solar energy - Solar thermal collectors - Test methods (ISO 9806:2017); German version EN ISO 9806:2017
  • DIN EN ISO 9806:2018 Solar energy - Solar thermal collectors - Test methods (ISO 9806:2017)
  • DIN EN ISO 9488:2001 Solar energy - Vocabulary (ISO 9488:1999); Trilingual version EN ISO 9488:1999
  • DIN EN ISO 9488:2022-12 Solar energy - Vocabulary (ISO 9488:2022); Trilingual version EN ISO 9488:2022
  • DIN CEN/TR 16999:2021-07 Solar energy systems for roofs - Requirements for structural connections to solar panels; German version CEN/TR 16999:2019
  • DIN EN 1836:2005 Personal eye-equipment - Sunglasses and sunglare filters for general use and filters for direct observation of the sun; English version of DIN EN 1836
  • DIN EN 1836:2007 Personal eye-equipment - Sunglasses and sunglare filters for general use and filters for direct observation of the sun (includes Amendment A1:2007); English version of DIN EN 1836:2007-11
  • DIN EN 12977-2:2012 Thermal solar systems and components - Custom built systems - Part 2: Test methods for solar water heaters and combisystems; German version EN 12977-2:2012
  • DIN EN 50461:2007 Solar cells - Datasheet information and product data for crystalline silicon solar cells; German version EN 50461:2006
  • DIN EN ISO 9806:2014 Solar energy - Solar thermal collectors - Test methods (ISO 9806:2013); German version EN ISO 9806:2013
  • DIN EN 50513:2009 Solar wafers - Data sheet and product information for crystalline silicon wafers for solar cell manufacturing; German version EN 50513:2009
  • DIN EN 12975:2022 Solar collectors - General requirements
  • DIN EN 12975:2018 Solar collectors - General requirements; German and English version prEN 12975:2018
  • DIN EN 12975:2022-06 Solar collectors - General requirements; German version EN 12975:2022
  • DIN CEN/TR 16999:2021 Solar energy systems for roofs - Requirements for structural connections to solar panels; German version CEN/TR 16999:2019
  • DIN SPEC 1209:2010 Thermal solar systems and components - Custom built systems - Part 2: Test methods for solar water heaters and combisystems; German version CEN/TS 12977-2:2010
  • DIN EN 12977-4:2012 Thermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores; German version EN 12977-4:2012

CEN - European Committee for Standardization, sun

  • PREN 12975-1-2011 Thermal solar systems and components Thermal solar systems and components - Solar collectors - Part 1: General requirements
  • PD CEN/TR 16999:2019 Solar energy systems for roofs - Requirements for structural connections to solar panels
  • PREN 12975-3-1-2011 Thermal solar systems and components - Solar collectors - Part 3-1: Qualification of solar absorber surface durability
  • EN 12975-2:2001 Thermal Solar Systems and Components - Solar Collectors - Part 2: Test Methods (Incorporating Corrigendum July 2002)
  • EN 1836:2005 Personal eye-equipment - Sunglasses and sunglare filters for general use and filters for direct observation of the sun (Incorporates Amendment A1: 2007)
  • PREN 12975-2018 Solar collectors - General requirements
  • EN 1836:1997 Personal Eye Protection - Sunglasses and Sunglare Filters for General Use (Incorporates Amendment A1: 2001)

RO-ASRO, sun

  • STAS 12738-1989 Solar energv SOLAR HOT WATER TANKS Measurement of thermal performances
  • STAS 12903-1990 Solar colleetors. Plane solar collectors. Classification and symbolization
  • STAS 12456/1-1986 Solar collectors FLAT-PLATE LIQUID TYPE SOLAR COLLECTORS Determination of the thermal efficiency under natural solar irradiation
  • STAS 12745-1989 Sollar collectors PLANE SOLAR COLLECTORS WITH GASOUS OR LIQUID THERMIC AGENT Determination of stagnation maxi- mum temperature under natural solar irradiation

BR-ABNT, sun

Japanese Industrial Standards Committee (JISC), sun

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., sun

AENOR, sun

国家市场监督管理总局、中国国家标准化管理委员会, sun

Professional Standard - Machinery, sun

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), sun

International Code Council, sun

U.S. Military Regulations and Norms, sun

Building Officials and Code Administrators International(U.S.), sun

Professional Standard - Forestry, sun

Danish Standards Foundation, sun

US-FCR, sun

Guangdong Provincial Standard of the People's Republic of China, sun

PT-IPQ, sun

中国气象局, sun

  • QX/T 368-2016 Solar constant and solar spectral irradiance at zero atmospheric mass
  • QX/T 89-2018 Solar Resource Assessment Methods
  • QX/T 366-2016 Standards for current reporting of solar proton events

国家能源局, sun

  • NB/T 10353-2019 Technical regulations for solar resource assessment of solar power generation projects
  • NB/T 34045-2017 Medium temperature solar collector
  • NB/T 10785-2021 Performance test method for household solar water heating system under indoor solar simulation environment
  • NB/T 34037-2016 Solar photovoltaic sprinkler system
  • NB/T 10464.5-2020 Technical Specifications for Procurement of Solar Thermal Utilization Systems Part 5: Solar Heating Projects
  • NB/T 10464.3-2020 Technical Specifications for Procurement of Solar Thermal Utilization Systems Part 3: Solar Hot Water Engineering
  • NB/T 34033-2016 Household solar water heater bracket
  • NB/T 34048-2017 Medium temperature vacuum solar absorbing coating
  • NB/T 10464.2-2020 Technical Specifications for Procurement of Solar Thermal Utilization Systems Part 2: Domestic Solar Hot Water Systems
  • NB/T 10464.4-2020 Technical Specifications for Procurement of Solar Thermal Utilization Systems Part 4: Household Solar Heating Systems

Professional Standard - Agriculture, sun

Canadian Standards Association (CSA), sun

Professional Standard - Energy, sun

Anhui Provincial Standard of the People's Republic of China, sun

Professional Standard - Aerospace, sun

Jiangxi Provincial Standard of the People's Republic of China, sun

SAE - SAE International, sun

Lithuanian Standards Office , sun

  • LST EN 1836+A1-2007 Personal eye-equipment - Sunglasses and sunglare filters for general use and filters for direct observation of the sun
  • LST EN ISO 9488:2004 Solar energy - Vocabulary (ISO 9488:1999)
  • LST EN 12975-2-2006 Thermal solar systems and components - Solar collectors - Part 2: Test methods
  • LST EN 12975-1-2006+A1-2011 Thermal solar systems and components - Solar collectors - Part 1: General requirements
  • LST EN 50461-2007 Solar cells - Datasheet information and product data for crystalline silicon solar cells

CO-ICONTEC, sun

American Society for Testing and Materials (ASTM), sun

  • ASTM E490-00a(2019) Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables
  • ASTM E490-22 Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables
  • ASTM E1084-86(2015) Standard Test Method for Solar Transmittance (Terrestrial) of Sheet Materials Using Sunlight
  • ASTM E816-05(2010) Standard Test Method for Calibration of Pyrheliometers by Comparison to Reference Pyrheliometers
  • ASTM E772-11 Standard Terminology of Solar Energy Conversion
  • ASTM E772-15(2021) Standard Terminology of Solar Energy Conversion

VN-TCVN, sun

Professional Standard - Electron, sun

SE-SIS, sun

Professional Standard - Building Materials, sun

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, sun

GM North America, sun

IET - Institution of Engineering and Technology, sun

American National Standards Institute (ANSI), sun

Hebei Provincial Standard of the People's Republic of China, sun

Henan Provincial Standard of the People's Republic of China, sun

IEC - International Electrotechnical Commission, sun

  • TS 62862-1-2-2017 Solar thermal electric plants – Part 1-2: General – Creation of annual solar radiation data set for solar thermal electric (STE) plant simulation

International Electrotechnical Commission (IEC), sun

  • IEC TS 62862-1-2:2017 Solar thermal electric plants - Part 1-2: General - Creation of annual solar radiation data set for solar thermal electric (STE) plant simulation
  • IEC 62862-4-1:2022 Solar thermal electric plants - Part 4-1: General requirements for the design of solar power tower plants

RU-GOST R, sun

  • GOST R 51595-2000 Nontraditional power engineering. Solar power engineering. Solar collectors. General specifications
  • GOST R 51596-2000 Nontraditional power engineering. Solar power engineering. Solar collectors. Method of testing
  • GOST 25645.110-1984 Solar wind. Terms and definitions
  • GOST 25645.148-1989 Solar gamma-radiation. Energy spectrum
  • GOST R 56127-2014 Renewable power engineering. Solar power engineering. Solar cells. Datasheet information and product data for crystalline silicon solar cells
  • GOST R 8.807-2012 Means measuring the irradiance of solar radiation. Verification measuring the irradiance of solar radiation. Verification procedure
  • GOST R 51831-2001 Sun glasses. General technical requirements
  • GOST 25645.151-1990 Solar hard X-rays. Energy spectrum
  • GOST 28310-1989 Solar collector. General specifications

Professional Standard - Non-ferrous Metal, sun

TH-TISI, sun

CH-SNV, sun

Underwriters Laboratories (UL), sun

Professional Standard - Meteorology, sun

IN-BIS, sun

ZA-SANS, sun

Professional Standard - Public Safety Standards, sun

Hunan Provincial Standard of the People's Republic of China, sun

NZ-SNZ, sun

  • NZS 4613:1986 Domestic Solar Water Heaters (Supersedes MP 4613: Part 1: 1979)

Standard Association of Australia (SAA), sun

American Society of Mechanical Engineers (ASME), sun

AT-ON, sun

  • ONORM M 7710-1995 Solar collectors for use of solar energy - Performance requirements, test specrfications and procedures
  • ONORM M 7710 Beib.1-1995 Data sheet for solar collectors Fiche de donnees pour capteurs solaires
  • ONORM M 7700-1991 Solar energy; terms with dejiniüons Energie solaire; termes avec dejiniüons

European Committee for Electrotechnical Standardization(CENELEC), sun

  • EN 50461:2006 Solar cells Datasheet information and product data for crystalline silicon solar cells

Institute of Electrical and Electronics Engineers (IEEE), sun

  • IEEE Std C37.24-2017 Guide for evaluating the effect of solar radiation on outdoor metal-enclosed switchgear
  • IEEE Std C37.24-1986 Guide for evaluating the effect of solar radiation on outdoor metal-enclosed switchgear

YU-JUS, sun

U.S. Air Force, sun

Gansu Provincial Standard of the People's Republic of China, sun

National Metrological Technical Specifications of the People's Republic of China, sun

BELST, sun

  • STB 443-94 Sun goggles. General technical specifications

Fujian Provincial Standard of the People's Republic of China, sun

Military Standard of the People's Republic of China-General Armament Department, sun

GOSTR, sun

  • GOST ISO 12312-1-2020 Personal eye protective equipment. Sunglasses and related eyewear. Part 1. Sunglasses for general use

Defense Logistics Agency, sun

US-UFC, sun

Society of Automotive Engineers (SAE), sun

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, sun

IL-SII, sun

Liaoning Provincial Standard of the People's Republic of China, sun

Jiangsu Provincial Standard of the People's Republic of China, sun

Shandong Provincial Standard of the People's Republic of China, sun

Professional Standard - Ferrous Metallurgy, sun

未注明发布机构, sun





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