ZH

RU

ES

link

link, Total:311 items.

In the international standard classification, link involves: Structure and structure elements, Fasteners for aerospace construction, Diagnostic, maintenance and test equipment, Road vehicle systems, Gears, Bearings, Sewing machines and other equipment for the clothing industry, Products of non-ferrous metals, Internal combustion engines, Aircraft and space vehicles in general, Aerospace engines and propulsion systems, Iron and steel products, Flexible drives and transmissions, Mining equipment, Components for aerospace construction, Small craft, Manufacturing forming processes, Coatings and related processes used in aerospace industry, Chipless working equipment, Machine tool systems, Rotary-reciprocating mechanisms and their parts, Fluid power systems, Agricultural machines, implements and equipment, Seals, glands, Shafts and couplings, Compressors and pneumatic machines, Railway rolling stock, Shipbuilding and marine structures in general, Electrical accessories, Kitchen equipment, Ferrous metals, Powder metallurgy, Woodworking equipment, Internal combustion engines for road vehicles, Hand-held tools, Ground service and maintenance equipment, Testing of metals, Industrial automation systems, Rubber and plastics products, Non-destructive testing, Equipment for petroleum and natural gas industries, Electromechanical components for electronic and telecommunications equipment.


Professional Standard - Aviation, link

Society of Automotive Engineers (SAE), link

ESDU - Engineering Sciences Data Unit, link

  • ESDU 10019-2011 Effect of link length tolerances on the performance of four-bar linkages
  • DWN 10019-2011 Effect of link length tolerances on the performance of four-bar linkages (Issue 4)
  • DWN 10019-2010 Effect of link length tolerances on the performance of four-bar linkages (Issue 2)
  • ESDU 90022 C-1995 Force analysis of planar linkages.
  • ESDU 90022 D-2010 Force analysis of planar linkages
  • ESDU 89043-1989 A comparison of techniques for balancing planar linkages.
  • ESDU 89028 A-1990 A procedure for force-balancing planar linkages using counterweights.
  • ESDU 90007 B-2010 Procedures for balancing planar linkages using rotating counterweights
  • ESDU 90007 A-1993 Procedures for balancing planar linkages using rotating counterweights.
  • ESDU 81033 A-1982 Atlas of performance curves for crank-rocker and slider-crank linkages.
  • ESDU 76005-1976 Kinematic and dynamic data for crank-rocker and slider-crank linkages. (Mechanisms Workbench.)

U.S. Military Regulations and Norms, link

ISUZU - Isuzu Motors Ltd., link

HU-MSZT, link

Professional Standard - Traffic, link

  • JT/T 122-1993 Connecting rods bushing boring machine
  • JT/T 122-2007 Con-Rod bushing boring machine
  • JT/T 131-1993 Hydraulic check-out stand of connecting rod
  • JT/T 54-1993 Technical Requirements for Repairing Connecting Rods of Marine Diesel Engines
  • JT/T 55-1993 Technical requirements for repairing main bearing bushes and connecting rod bearing bushes of marine diesel engines
  • JT/T 50-1993 Repair technical requirements for connecting rod bushing and piston pin hole bushing of marine diesel engine

PL-PKN, link

Korean Agency for Technology and Standards (KATS), link

Association of German Mechanical Engineers, link

  • VDI 2123-2008 Plain linkages - Design of four-bar linkages favourable for transference for oscillatory motion in the same direction
  • VDI 2130-1984 Crank and rocker mechanisms; design and computation in four-link planar linkages
  • VDI 2124-2008 Plain linkages - Design of four-bar linkages favourable for transference for oscillatory motion in opposite directions
  • VDI 2145-1980 Planar, four-bar linkages; terminology, systematic approach
  • VDI 2154-1971 Spherical four-bar linkages; explanation of terms and system
  • VDI 2729-1995 Modular kinematic analysis of planer linkages with rotating and sliding joints

Professional Standard-Ships, link

  • CB/T 699-2008 Connecting rod of marine diesel engine
  • CB 699-1968 Diesel engine connecting rod specification
  • CB/T 3536-1994 Technical Requirements for Repairing Connecting Rods of Marine Diesel Engines
  • CB 700-1968 Diesel engine connecting rod bolts and nuts specification
  • CB/T 700-1968 Technical specifications of diesel engine connecting rod bolts and nuts
  • CB/T 3565-1993 Marine Crankshaft Connecting Rod Radial Piston Hydraulic Motor
  • CB/T 3535-1994 Technical requirements for repairing main bearing bushes and connecting rod bearing bushes of marine diesel engines
  • CB/T 3683-1995 Repair Technical Requirements for Marine Crankshaft Connecting Rod Radial Piston Hydraulic Motor
  • CB/T 3539-1994 Repair technical requirements for connecting rod bushing and piston pin hole bushing of marine diesel engine

RU-GOST R, link

  • GOST 13843-1978 Rod aluminium wire. Technical conditions
  • GOST 25553-1982 One stage hydraulic cylinders at nominal pressure 16 MPa. Connected threades of rods and plungers
  • GOST R 53813-2010 Automobile engines. Connecting rods. Technical requirements and test methods
  • GOST R 53557-2009 Motor vehicles. Connecting rod bolts. General technical requirements and methods of tests
  • GOST R IEC 127-6-1999 Miniature fuses. Part 6. Fuse-holders for miniature cartridge fuse-links
  • GOST 25020-1984 Hydraulic and pneumatic cylinders. Piston rod and plunger threads

IN-BIS, link

GOSTR, link

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, link

  • GB/T 23340-2018 Internal combustion engines—Connecting-rods—Specification

CZ-CSN, link

U.S. Air Force, link

Defense Logistics Agency, link

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

  • GB/T 23340-2009 Internal combustion engines.Connecting-rods.Spectification
  • GB 3271-1982 Connecting rod bolts for reciprocating internal combustion engines--Technical specifications
  • GB/T 35093-2018 CNC straight-side link-drive press.Accuracy
  • GB/T 1151-2012 Internal combustion engines.Main and connecting rod bearings.Specifications
  • GB/T 1151-2023 Specifications for main bearing bushes and connecting rod bearing bushes of internal combustion engines
  • GB/T 1151-1993 Internal combustion engines. Main and connecting bearings. Specification
  • GB/T 25762-2010 Rolling bearing.Needle roller and cage assemblies for motorcycle connecting rod

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

  • CNS 9174-1983 Connecting Rod of Engine for Motor Cycle
  • CNS 5496-1989 Feed Lifting Rock Shaft Connecting Rods of Sewing Machines for Industrial Use
  • CNS 5294-1988 Crank Connecting Rod of Household Sewing Machines
  • CNS 5494-1989 Needle Bar Connecting Links of Sewing Machines for Industrial Use
  • CNS 5492-1989 Thread Take-up Levers (Link Type) of Sewing Machines for Inoustrial Use
  • CNS 7032-1986 Dimensions of Link Type Drawbars for Agricultural Wheel Tractors

Professional Standard - Machinery, link

  • JB/T 6721-1993 Specification for internal combustion engine crank
  • JB/T 9902.1-1999 Precision Inspection of Connecting Rod Boring Machine
  • JB/T 9902.2-1999 Technical conditions of connecting rod boring machine
  • JB/T 6722-1993 Internal Combustion Engine Connecting Rod Magnetic Particle Inspection
  • JB/T 11795-2014 Internal combustion engines.Fractured connecting rod.Specification
  • JB/T 8837-2000 Internal combustion engines.Connecting rod bolts.Metallographic examination
  • JB/T 3372-1992 Needle roller and cage assemblies for connecting rods
  • JB/T 8417-1996 Specifications for connecting rod nuts of internal combustion engines
  • JB/T 8416-1996 Specifications for internal combustion engine connecting rod bolts
  • JB/T 51047-1999 Internal combustion engine connecting rod product quality classification
  • JB/T 9764-1999 internal combustion engines.Connecting-rod small-end wrapped bushes.Specifications
  • JB/T 7515-1994 Four-phase side-by-side connecting rod impulse CVT
  • JB/T 6951-1993 Triphase side-by-side connecting rod impulse CVT
  • JB/T 2236-2005 Reciprocating piston compressor connecting rod small end bushing
  • JB/T 7292.1-2007 Internal combustion engine bushes Connecting-rod small-end bushes Specification
  • JB/T 6721.2-2007 Internal combustion engines.connecting-rods.Part 2: Magnetic particle inspection
  • JB/T 2236-1991 Reciprocating piston compressor connecting rod small end bushing
  • JB/T 9764-2015 Specifications for coiled connecting rod bushings for internal combustion engines
  • JB/T 7292.1-1994 Specifications for internal combustion engine bushings and connecting rod bushings
  • JB/T 51045-1999 Product quality classification of internal combustion engine connecting rod bolts
  • JB/T 51046-1999 Product Quality Grading of Connecting Rod Nuts for Internal Combustion Engines
  • JB/T 51011-1999 Product Quality Grading of Connecting Rod Bushings for Internal Combustion Engines
  • JB/T 11651-2013 Technical specification for aluminum connecting rod of general small gasoline engine
  • JB/T 9743-1999 Internal combustion engines.Magnetic particle testing specifications for connecting rod bolts
  • JB/T 10783.2-2007 Straight-side four point multi-link Part2:Testing of the accuracy
  • JB/T 10659-2006 Nondestructive testing Ultrasonic testing of forged steel materials Testing of connecting rods
  • JB/T 51109-1999 Product Quality Grading of Main Bearing and Connecting Rod Bearings of Internal Combustion Engines
  • JB/T 10659-2015 Ultrasonic testing of connecting rods in non-destructive testing forged steel materials
  • JB/T 3372-2004 Rolling bearings-Needle roller and cage assemblies for connecting rod bearing arrangements
  • JB/T 12255-2015 Specification for sintered valve plate, connecting rod and piston of refrigeration compressor
  • JB/T 10782.2-2007 Straight-side double-action multi-link press Part2:Testing of the accuracy
  • JB/T 10660-2015 Non-destructive testing of forged steel materials Ultrasonic testing of connecting rod bolts
  • JB/T 53083-1999 Product quality classification of three-phase parallel-rod pulsating continuously variable transmission
  • JB/T 7293.3-2014 Internal combustion engines.Bolts and nuts.Part 3: Connecting rod bolts.Metallographic examination
  • JB/T 10660-2006 Non destructive testing Ultrasonic testing of forged steel materials Testing of connecting red bolts
  • JB/T 7293.2-2010 Internal combustion engines.bolts and nuts.Part 2:Connecting rod bolts.Specification
  • JB/T 7293.4-2010 Internal combustion engines.Bolts and nuts.Part 4:Connecting rod bolts.Magnetic particle testing
  • JB/T 7293.8-2010 Internal combustion engines.Bolts and nuts.Part 8:Connecting rod nuts.Specification
  • JB/T 5919-1991 Dimensions and markings of crankshaft connecting rod radial plugging hydraulic motor mounting flange and shaft extension (1)

Professional Standard - Ferrous Metallurgy, link

  • YB/T 4157-2007 High temperature lever shut-off butterfly valve
  • YB/T 6103-2023 Non-quenched and tempered structural steel rods for automobile expansion connecting rods

International Organization for Standardization (ISO), link

Association Francaise de Normalisation, link

  • NF EN 16241+A1:2016 Applications ferroviaires - Régleur de timonerie
  • NF EN 16241/IN1:2016 Applications ferroviaires - Régleur de timonerie
  • NF E64-107:1986 Woodworking machines. Parallel link sawing machines. Nomenclature.
  • NF EN 4692:2017 Série aérospatiale - Bielle avec axes intégrés - Clip de verrouillage
  • NF E66-405:1983 Shanks for pneumatic hammers.
  • NF EN 2644:1998 Série aérospatiale - Bielles équipées pour commandes de vol - Spécification technique
  • NF L35-140:1954 Fork joints for control linkage. Model with threaded end (rech.).
  • NF EN 4691-2:2018 Série aérospatiale - Bielle avec axes intégrés - Partie 2 : vue d'ensemble
  • NF EN 2289:1996 Série aérospatiale - Corps de bielle en alliage d'aluminium pour commandes de vol - Spécification technique.
  • NF EN 4691-1:2017 Série aérospatiale - Bielle avec axes intégrés - Partie 1 : spécification technique
  • NF EN 4694:2017 Série aérospatiale - Bielle avec axes intégrés - Code assemblage D, E et F
  • NF EN 4695:2017 Série aérospatiale - Bielle avec axes intégrés - Code assemblage G, H et K
  • NF EN 4693:2017 Série aérospatiale - Bielle avec axes intégrés - Code assemblage A, B et C
  • NF U10-201:1997 Agricultural tractors. Test procedures. Part 2 : rear three-point linkage lifting capacity.
  • NF E48-037:2006 Hydrolic fluid power - Cylinders - Housing dimensions for rectangular-section-cut bearing rings for pistons and rods.
  • NF E48-037*NF ISO 10766:2014 Hydraulic fluid power - Cylinders - Housing dimensions for rectangular-section-cut bearing rings for pistons and rods
  • NF C93-463:1982 Components for electronic equipment. Connecting bars. General requirements.

RO-ASRO, link

German Institute for Standardization, link

  • DIN 5543:1980-05 Laminated springs; spring link washers and intermediate spring link washers for spring suspension
  • DIN 42966:1961 Ball bearings, conrad type, for electrical machines; tolerances and radial clearance
  • DIN 87380:1980 Remote control gear with transmission tubing for manual operation; fork links for uncoupling with square hole for setting-up connection
  • DIN 87380:2017 Remote control gear with transmission tube for manual operation - Fork links for uncoupling with square hole for setting-up connection
  • DIN ISO 3952-1:1995-01 Simplified representation for kinematics - Part 1: Representation of motion of links; identical with ISO 3952-1:1981

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

  • T/ZACA 043-2022 Connecting rods for heavy duty diesel engines
  • T/ZZB 2895-2022 Internal combustion engine—Precision forging of fracture splitting connecting rod
  • T/CCMI 13.2-2022 Engine Explosive Connecting Rod Blank Specifications Part 2: Commercial Vehicle Engine Explosive Connecting Rod
  • T/CCMI 13.1-2021 Specifications for rough parts of connecting rods for engine breakage Part 1: Breakout connecting rods for engines of passenger cars
  • T/CASME 551-2023 Cold stamping die for automobile rear cross link
  • T/JSQA 110-2021 Crankshaft connecting rod assembly of motorcycle engine
  • T/SSEA 0040-2019 Non-quenched and tempered round steel for automobile crankshaft and connecting rod
  • T/GDC 224-2023 Fully embedded two-link hinge for built-in dishwashers
  • T/ZZB 3148-2023 Iron-based sintered connecting rod for refrigerator compressor
  • T/ZZB 1558-2020 General utility small gasoline engine—Split type crankshaft connecting rod assembly
  • T/CICEIA /CAMS21-2021 Reciprocating internal combustion engines - Connecting rod - Quality grading specification

Danish Standards Foundation, link

  • DS/EN ISO 13929:2001 Small craft - Steering gear - Geared link systems
  • DS/ISO 8140:1989 Pneumatic fluid power - Cylinders, 10 bar (1 000 kPa) series - Rod end clevis - Mounting dimensions

North Atlantic Treaty Organization Standards Agency, link

Yunnan Provincial Standard of the People's Republic of China, link

  • DB53/T 444-2012 Specifications for Expansion-broken Connecting Rods of Internal Combustion Engines

Professional Standard - Railway, link

  • TB/T 432-1975 Connecting Rods for Standard Gauge Railway Turnouts
  • TB/T 1818-2009 Components of diesel engine for locomotive and rail car.Connecting rod
  • TB/T 1818-1987 Diesel engine connecting rod specification for diesel locomotive
  • TB/T 1435-2009 Components of diesel engine for locomotive and rail car Main bearing and connecting rod bearing
  • TB/T 1435-1993 Specifications for main bearing and connecting rod bearings for diesel locomotive diesel engines

Professional Standard - Automobile, link

  • QC/T 527-1999 Automobile engine connecting rod technical conditions
  • QC/T 280-1999 Specifications for main bearing bushes and connecting rod bearing bushes of automobile engines
  • QC/T 686-2002 Motorcycle and Moped Engine Combined Crankshaft Connecting Rod Assembly Specifications

SAE - SAE International, link

  • SAE J2131-1992 Front-Mounted Linkage for Agricultural Wheeled Tractors
  • SAE J2028-1992 Front-Wheel-Drive Constant Velocity Joint Boot Seals@ Recommended Practice
  • SAE J2028-2016 Front-Wheel-Drive Constant Velocity Joint Boot Seals

工业和信息化部/国家能源局, link

  • JB/T 12661-2016 Internal combustion engine connecting rod fatigue test method
  • JB/T 12892-2016 High power diesel engine connecting rod technical conditions
  • JB/T 12734-2016 Process specifications for remanufacturing internal combustion engine connecting rods
  • JB/T 13533-2018 Single-action closed-type multi-link four-point servo mechanical press precision

KR-KS, link

American Society for Testing and Materials (ASTM), link

  • ASTM A49-12(2019) Standard Specification for Heat-Treated Carbon Steel Joint Bars, Microalloyed Joint Bars, and Forged Carbon Steel Compromise Joint Bars
  • ASTM F2973-14 Standard Specification for Insulating Lifting Links for Load Lifting Equipment Working Near Energized Power Lines

AR-IRAM, link

Canadian Standards Association (CSA), link

工业和信息化部, link

  • JB/T 13895-2020 Closed multi-link cold and warm extrusion press
  • JB/T 13505-2018 Technical conditions of powder metallurgy connecting rods for internal combustion engines
  • JB/T 2236-2020 Reciprocating piston compressor connecting rod small end bushing
  • JB/T 14124.3-2021 Multi-link toggle cold extrusion presses Part 3: Precision
  • QC/T 1139-2020 Technical Specifications for Auto Parts Remanufactured Products Connecting Rods
  • JB/T 7292.1-2018 Internal Combustion Engine Bushings Part 1: Technical Conditions of Connecting Rod Bushings
  • JB/T 14124.2-2021 Multi-link toggle-type cold extrusion presses Part 2: Technical conditions
  • JB/T 14124.1-2021 Multi-link toggle cold extrusion press Part 1: Basic parameters
  • JB/T 13585.2-2019 CNC Crankshaft Connecting Rod Journal Lathe Part 2: Technical Conditions
  • JB/T 13585.1-2019 CNC Crankshaft Connecting Rod Journal Lathe Part 1: Accuracy Inspection

AENOR, link

Lithuanian Standards Office , link

  • LST EN ISO 13929:2002 Small craft - Steering gear - Geared link systems (ISO 13929:2001)
  • LST ISO 11001-3:2009 Agricultural wheeled tractors and implements - Three-point hitch couplers - Part 3: Link coupler (ISO 11001-3:2009, identical)
  • LST ISO 2332:2009 Agricultural tractors and machinery - Connection of implements via three-point linkage - Clearance zone around implement (ISO 2332:2009, identical)

Professional Standard - Farm Machinery, link

  • NJ 309-1983 Metallographic inspection standard for internal combustion engine connecting rod bolts

Professional Standard - Military and Civilian Products, link

International Electrotechnical Commission (IEC), link

AT-ON, link

  • ONORM M 2030-1974 Hydraulic cylinders; connecting holes, connecting forks; assembly dimensions
  • ONORM ISO 6022:1985 Hydraulic fluid power; Single rod cylinders; mounting dimensions; 250 bar (25 MPa)-series;
  • ONORM EN 2792-1991 Aerospace series - Rod ends, adjustable, double fork and threaded shank with engagement: 1,5xthread0-Dimensions and loads
  • ONORM ISO 6020 Teil.1:1985 Hydraulic fluid power; Single rod cylinders; mounting dimensions; 160 bar (76MPa) series; medium series
  • ONORM ISO 6432:1986 Pneumatic fluid power; Single rod cylinder; 10 bar (1 MP?) series; boresfrom 8 mm to 25 mm; mounting dimensions

VN-TCVN, link

  • TCVN 1737-1985 Tractor and combine engines.Connecting rods.Technical requirements
  • TCVN 1738-1985 Tractor and combine engines.Connecting rod bolts.Technical requirements
  • TCVN 1739-1985 Tractor and combine engines.Nuts of connecting rod.Technical requiements

Professional Standard - Agriculture, link

  • JB/T 51047.1-1993 Internal combustion engine connecting rod product quality grading quality index
  • NY/T 111-1989 2ZT-935, 2ZT-735 connecting rod motorized rice transplanter repair quality standard

American Society of Mechanical Engineers (ASME), link

  • ASME B29.28-2015 High-Strength Chains for Power Transmission and Tension Linkages

SE-SIS, link

IT-UNI, link

International Federation of Trucks and Engines, link

NATO - North Atlantic Treaty Organization, link

  • STANAG 3820-1988 27 mm X 145 Ammunition and Links for Aircraft Guns (ED 1 AMD 2; To obtain please contact your national Defense Standardization Office or the NATO Standardization Office website: http:/ so.nato.int so@ Phone: +32 (0)2 – 707 5556@ email: nso@nso.nato.int. F
  • STANAG 3820-1998 27 mm x 145 Ammunition and Links for Aircraft Guns (ED 2 AMD 1 Amendment 1@ 02/25/1999; To obtain please contact your national Defense Standardization Office or the NATO Standardization Office website: http:/ so.nato.int so@ Phone: +32 (0)2 – 707 5556@ em

BR-ABNT, link

ES-AENOR, link

British Standards Institution (BSI), link

  • BS 6509:1984 Specification for clearance zone on implements for the three-point linkage to agricultural tractors
  • BS ISO 8140:1995 Pneumatic fluid power - Cylinders, 1 000 kPa (10 bar) series - Rod end clevis - Mounting dimensions
  • BS ISO 10766:2006 Hydraulic fluid power - Cylinders - Housing dimensions forrectangular-sect bearing rings for pistons and rods
  • BS ISO 10766:2014 Hydraulic fluid power. Cylinders. Housing dimensions for rectangular-section-cut bearing rings for pistons and rods
  • BS 6818-1:1987 Front-mounted linkage and power take-off for agricultural wheeled tractors. Specification for power take-off
  • BS ISO 730:2009+A1:2014 Agricultural wheeled tractors. Rear-mounted three-point linkage. Categories 1N, 1, 2N, 2, 3N, 3, 4N and 4
  • BS ISO 21866-1:2020 Plain bearings. Automotive engine bearing test rig using actual connecting rods. Test rig
  • BS EN 60269-6:2011 Low-voltage fuses. Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems

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

  • GJB 3193-1998 Specifications for main bearings and connecting rod bearings of armored vehicle diesel engines

国家铁路局, link

  • TB/T 3475.3-2019 Diesel engine parts for locomotives and EMUs Part 3: Connecting rods
  • TB/T 3475.5-2019 Diesel engine parts for locomotives and EMUs Part 5: Main bearings and connecting rod bearings

Aerospace Industries Association/ANSI Aerospace Standards, link

  • AIA/NAS NAS 1049-1994 Sling Link, Welded, Alloy Steel, Pear Shaped (for Ground Support Equipment) (Rev. 2)

国家市场监督管理总局、中国国家标准化管理委员会, link

  • GB/T 36230-2018 CNC Straight-side link-drive press—Performance requirements and test methods

GM Europe, link

  • GME7030-2006 Pleuel, Stahl-Schmiedeteil Connecting Rod, Steel-Forging Part English/German; Includes Appendix A and B

NL-NEN, link

  • NEN 2985-1989 Stainless steel stub-ends for flanges with connecting dimensions according ISO-PN 10

Standard Association of Australia (SAA), link

Aerospace, Security and Defence Industries Association of Europe (ASD), link

  • ASD-STAN PREN 2067-1989 Aerospace Series Rod-Ends with Self-Aligning Ball Bearings Technical Specification (Issue P 1)
  • ASD-STAN PREN 2068-1989 Aerospace Series Rod-Ends with Self-Lubricating Self-Aligning Bearings Technical Specification (Issue P 1)
  • ASD-STAN PREN 2587-1989 Aerospace Series Rod-Ends, Adjustable Double Fork and Threaded Shank Dimensions and Loads

General Motors do Brasil, link

  • GMSA LTP 219-2011 Requirement for acceptance of surface defects on casting connecting rod Crit茅rios de aceita莽茫o para defeitos superficiais em bielas fundidas Do Not use on New Programs; No Replacement

YU-JUS, link

  • JUS N.E5.744-1991 Miniature fuses. Cartridge fuse links 5 mm x 20 mm. Time-lag (surge-proof). High-breaklng capacity

Professional Standard - Petroleum, link

国家能源局, link





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