119079 ⎘
Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes Cooling or quenching
SULFUR-RESISTANT AND CORROSION-RESISTANT LOW-CARBON ALLOY-BASED COILED TUBING AND PREPARATION METHOD THEREOF
#2STEEL COMPOSITION, MANUFACTURING METHOD, STEEL ARTICLE AND USES HEREOF
#3STEEL MATERIAL FOR HIGH-STRENGTH LINE PIPE WITH HIGH FRACTURE TOUGHNESS IN HYDROGEN AND METHOD FOR PRODUCING THE SAME, AND STEEL PIPE FOR HIGH-STRENGTH LINE PIPE AND METHOD FOR PRODUCING THE SAME
#4STEEL MATERIAL WITH GOOD FATIGUE PROPERTY IN HYDROGEN AND METHOD FOR PRODUCING THE SAME, AND STEEL PIPE AND METHOD FOR PRODUCING THE SAME
#5LOW-ALLOY STEEL, PLATE AND WELDED PIPE RESISTANT TO CARBON DIOXIDE AND MICROORGANISM CORROSION, AND MANUFACTURING METHOD THEREFOR
#6Steel Composition for Expandable Tubular Articles, Expandable Tubular Article Having This Steel Composition, Manufacturing Method Thereof and Use Thereof
#7FORMING SYSTEM, FORMING DEVICE, AND FORMING METHOD
#8STAINLESS STEEL SEAMLESS PIPE AND PRODUCTION METHOD THEREFOR
#9HIGH-STRENGTH PETROLEUM PIPE CASING AND MANUFACTURING METHOD THEREFOR
#10STAINLESS STEEL SEAMLESS PIPE AND PRODUCTION METHOD THEREFOR
#11HOT-ROLLED STEEL SHEET AND METHOD OF PRODUCING SAME, AND ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE AND METHOD OF PRODUCING SAME
#12STEEL TUBE, VEHICLE COMPONENT, METHOD FOR PRODUCING STEEL TUBE, AND METHOD FOR PRODUCING VEHICLE COMPONENT
#13HOT ROLLED STEEL SHEET HAVING EXCELLENT COLD BENDABILITY AFTER HEATING AND QUENCHING-TEMPERING HEAT TREATMENT, STEEL PIPE, MEMBER AND MANUFACTURING METHODS THEREFOR
#14ELECTRIC RESISTANCE WELDED STEEL PIPE FOR AN AUTOMOTIVE PART, AND METHOD OF PRODUCING AUTOMOTIVE PART
#15STEEL PIPE FOR OIL CYLINDER AND MANUFACTURING METHOD THEREFOR
#16HIGH-STRENGTH SEAMLESS STAINLESS STEEL PIPE FOR OIL WELLS
#17MARTENSITIC STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR PRODUCING MARTENSITIC STAINLESS STEEL SEAMLESS PIPE
#18HIGH-STRENGTH STAINLESS SEAMLESS STEEL PIPE FOR OIL WELLS AND METHOD FOR PRODUCING THE SAME
#19STEEL PIPE FOR LINE PIPE WITH EXCELLENT LOW TEMPERATURE TOUGHNESS OF WELDED ZONE AND METHOD FOR MANUFACTURING THE SAME
#20CORROSION-RESISTANT AND HIGH TOUGHNESS OIL CASING AND METHOD FOR MANUFACTURING SAME
#21CONTINUOUS HEATING DEVICE AND CONTINUOUS HEATING METHOD
#22METHOD OF FORMING AND HEAT TREATING COILED TUBING
#23SEAMLESS STEEL TUBE RESISTANT TO CARBON DIOXIDE CORROSION AND MANUFACTURING METHOD THEREFOR
#24HIGH-STRENGTH AND HIGH-TOUGHNESS BAINITE GEOLOGICAL DRILLING PIPE AND MANUFACTURING METHOD THEREFOR
#25ELECTRIC RESISTANCE WELDED STEEL PIPE FOR MECHANICAL STRUCTURAL COMPONENTS, AND METHOD FOR PRODUCING SAME
#26ULTRA-HIGH-STRENGTH HOT-ROLLED STEEL SHEET, STEEL PIPE, MEMBER, AND MANUFACTURING METHODS THEREFOR
#27HEAT-RESISTANT STEEL FOR STEEL PIPES AND CASTINGS
#28STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME
#29HIGH-STRENGTH AND HIGH-TOUGHNESS BAINITE GEOLOGICAL DRILLING PIPE AND MANUFACTURING METHOD THEREFOR
#30HIGH-STRENGTH STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS AND METHOD FOR MANUFACTURING SAME
#31ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME
#32MARTENSITIC STAINLESS STEEL MATERIAL
#33Linepipe Steel With Enhanced Sulfide Stress Cracking Resistance
#34NON-MAGNETIC AUSTENITIC STAINLESS STEEL MATERIAL AND PRODUCTION METHOD THEREFOR
#35MARTENSITIC STAINLESS STEEL MATERIAL
#36Method of Manufacturing High Strength Steel Tubing from a Steel Composition and Components Thereof
#37STEEL AND STEEL COMPONENT
#38Multi-thickness welded vehicle structure
#39High Strength, High-Temperature Corrosion Resistant Martensitic Stainless Steel and Manufacturing Method Therefor
#40MARTENSITIC STAINLESS STEEL MATERIAL AND METHOD FOR PRODUCING MARTENSITIC STAINLESS STEEL MATERIAL
#41STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS AND METHOD FOR MANUFACTURING THE SAME
#42High-strength seamless steel pipe and method for manufacturing same
#43STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING STAINLESS STEEL SEAMLESS PIPE
#44Seamless steel pipe having desirable sulfuric acid dew-point corrosion resistance, and method for manufacturing same
#45ELECTRIC RESISTANCE WELDED STEEL PIPE, METHOD FOR PRODUCING THE SAME, LINE PIPE, AND BUILDING STRUCTURE
#46Seamless steel pipe having desirable sulfuric acid dew-point corrosion resistance, and method for manufacturing same
#47Stainless steel seamless pipe and method for manufacturing same
#48Steel material for line pipes, method for producing the same, line pipe, and method for producing the line pipe
#49Cooling device for seamless steel pipes
#50High strength steel tube and method of manufacturing a high strength steel tube
#51Stainless steel seamless pipe
#52STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME
#53Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same
#54Martensitic stainless seamless steel pipe
#55Method for manufacturing torsion beam
#56Steel material suitable for use in sour environment
#57APPARATUS FOR COOLING LONG PRODUCTS AND METHOD OF COOLING A LONG PRODUCT USING THE SAME
#58Seamless steel pipe suitable for use in sour environment
#59Electric resistance welded steel pipe or tube
#60Electric resistance welded steel tubes for high-strength thin hollow stabilizers, and methods for manufacturing the same
#61Seamless steel pipe and method for producing the same
#62Steel material and method for producing steel material
#63Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same
#64Tube product, hollow carrier of perforating gun and method of manufacturing the tube product
#65Steel pipe and method for producing steel pipe
#66Method for quenching steel pipe, equipment for quenching steel pipe, and method for manufacturing steel pipe
#67STEEL COMPOSITION IN ACCORDANCE WITH API 5L PSL-2 SPECIFICATION FOR X-65 GRADE HAVING ENHANCED HYDROGEN INDUCED CRACKING (HIC) RESISTANCE, AND METHOD OF MANUFACTURING THE STEEL THEREOF
#68Method for manufacturing cold-forged, extruded aluminum alloy tube
#69High tensile and high toughness steels
#70Seamless steel pipe heat-treatment-finishing-treatment continuous facility
#71Hot-rolled steel sheet having excellent durability and method for manufacturing same
#72Electric resistance welded steel pipe for producing hollow stabilizer, hollow stabilizer, and production methods for same
#73MARTENSITIC STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS, AND METHOD FOR MANUFACTURING SAME
#74Production method of seamless steel pipe
#75Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor
#76Ductile Fuse for Special Concentrically Braced Frames and Related Methods
#77Apparatus and methods for heating and quenching tubular members
#78Method for preventing cracking along the surface at the inner hole of a hollow shaft during horizontal water quenching
#79Piercing machine, and method for producing seamless metal pipe using the same
#80Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same
#81Method of manufacturing a tubular product and tubular product
#82Method for Producing a Wear-Resistant Steel Pipe, Wear-Resistant Steel Pipe, and Use of Such a Steel Pipe
#83High-strength seamless stainless steel pipe for oil country tubular goods and method of manufacturing high-strength seamless stainless steel pipe
#84METHOD OF PRODUCING TUBE OF DUPLEX STAINLESS STEEL
#85Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe
#86VEHICLE UNDERBODY PART MATERIAL, METHOD FOR MANUFACTURING VEHICLE UNDERBODY PART MATERIAL, AND METHOD FOR MANUFACTURING VEHICLE UNDERBODY PART
#87Method of forming and heat treating coiled tubing
#88STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE IN DEW CONDENSATION ENVIRONMENT CONTAINING SULFIDE AND METHOD FOR PRODUCING SAME
#89Steel material, oil-well steel pipe, and method for producing steel material
#90QUENCHING PROCESSING APPARATUS
#91Steel Material and Method for Producing Steel Material
#92High strength seamless stainless steel pipe and method for producing same
#93HIGH PERFORMANCE MATERIAL FOR COILED TUBING APPLICATIONS AND THE METHOD OF PRODUCING THE SAME
#94High performance material for coiled tubing applications and the method of producing the same
#95Duplex stainless steel and method for producing same
#96Systems and methods for producing hot induction pipe bends with homogeneous metallurgical and mechanical properties
#97Micro alloyed steel and method for producing said steel
#98OIL WELL PIPE FOR EXPANDABLE TUBULAR
#99Wellbore tubular air quenching
#100MARTENSITIC STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS, AND METHOD FOR PRODUCING SAME
#101High-strength seamless steel pipe for oil country tubular goods, and method for producing the same
#102Hot-rolled steel sheet for heavy-wall, high-strength line pipe, welded steel pipe for heavy-wall, high-strength line pipe, and method for producing the welded steel pipe
#103Method for producing a re-shaped component from a manganese-containing flat steel product and such a component
#104Steel pipe or tube for pressure vessels, method of producing steel pipe or tube for pressure vessels, and composite pressure vessel liner
#105HIGH CHROMIUM MARTENSITIC HEAT-RESISTANT STEEL WITH COMBINED HIGH CREEP RUPTURE STRENGTH AND OXIDATION RESISTANCE
#106Electric resistance welded clad steel pipe or tube and method of producing same
#107Seamless steel pipe and method for producing same
#108High strength stainless steel seamless pipe for oil country tubular goods
#109High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe
#1103-D printed cooling channels to produce PHS parts with tailored properties
#111Heat treatment apparatus, heat treatment method for steel workpiece, and hot bending method for steel workpiece
#112Steel material and oil-well steel pipe
#113SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME
#114High-strength seamless steel pipe for oil country tubular goods, and production method for high-strength seamless steel pipe for oil country tubular goods
#115Process of producing a duplex stainless steel tube
#116SEAMLESS STEEL PIPE AND METHOD OF MANUFACTURING THE SAME
#117PROCESSES FOR PRODUCING THICKER GAGE PRODUCTS OF NIOBIUM MICROALLOYED STEEL
#118High-strength seamless steel pipe for oil country tubular goods and method of producing the same
#119Track bushing
#120Seamless Line Pipe Resistant to Corrosion by CO2/H2S and Sulfate-Reducing Bacteria and Manufacturing Method Thereof
#121Electric resistance welded steel pipe for high-strength hollow stabilizer, and method for manufacturing electric resistance welded steel pipe for high-strength hollow stabilizer
#122ONLINE-CONTROL COOLING PROCESS FOR SEAMLESS STEEL TUBE FOR EFFECTIVELY REFINING GRAINS AND THE METHOD FOR MANUFACTURING THEREOF
#123Method for manufacturing bainite high-strength seamless steel tube, and bainite high-strength seamless steel tube
#124Seamless steel tube with high strength and toughness and manufacturing method therefor
#125Process for on-line quenching of seamless steel tube using residual heat and manufacturing method
#126STAINLESS STEEL PIPE AND METHOD OF MANUFACTURING THE SAME
#127STEEL MATERIAL FOR COMPOSITE PRESSURE VESSEL LINER, STEEL PIPE OR TUBE FOR COMPOSITE PRESSURE VESSEL LINER, AND METHOD OF MANUFACTURING STEEL PIPE OR TUBE FOR COMPOSITE PRESSURE VESSEL LINER
#128High performance material for coiled tubing applications and the method of producing the same
#129DEVICE FOR TREATING, BY HEAT TEMPERING, A METAL ELEMENT OF THE TUBE OR BAR TYPE HAVING ARCHED PORTIONS
#130MECHANICAL COMPONENT
#131Corrosion resistant steel, method for producing said steel and its use thereof
#132Steel pipe for fuel injection pipe and method for producing the same
#133Hardening apparatus for a long member, and a hardening method for a long member
#134LOW ALLOY STEEL FOR OIL COUNTRY TUBULAR GOODS HAVING EXCELLENT SULFIDE STRESS CRACKING RESISTANCE AND MANUFACTURING METHOD THEREFOR
#135Hollow stabilizer
#136Internal quench system for cooling pipe
#137High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe
#138Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner
#139Heat treatable steel, product formed thereof having ultra high strength and excellent durability, and method for manufacturing same
#140Seamless stainless steel pipe for oil country tubular goods and method of manufacturing the same
#141Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe
#142High-strength seamless steel pipe for oil country tubular goods and method of producing the same
#143High-strength seamless steel pipe for oil country tubular goods and method of producing the same
#144Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe
#145High performance material for coiled tubing applications and the method of producing the same
#146High toughness heat-treated steel pipe having three-layer structure and manufacturing method thereof
#147Thick-wall oil-well steel pipe and production method thereof
#148Heat treated steel product having high strength and excellent chemical conversion coating ability and method of production of same
#149High-strength seamless steel pipe for oil country tubular goods and method of producing the same
#150APPARATUS AND METHOD FOR QUENCHING RODS AND TUBES
#151OCTG pipe system and method of manufacturing thereof
#152High-strength seamless steel pipe for oil country tubular goods and method of producing the same
#153METHODS FOR QUENCHING METAL TUBES
#154Quenching apparatus and method for producing metallic material
#155High elastic modulus shafts and method of manufacture
#156Seamless steel pipe for line pipe and method for producing the same
#157Forming apparatus and forming method
#158Hardening method of annular workpiece
#159Steel material for highly deformable line pipes having superior strain aging resistance and superior HIC resistance, method for manufacturing same, and welded steel pipe
#160Heat treatment system and heat treatment method
#161OVERHEATING-INSENSITIVE FINE GRAINED ALLOY STEEL FOR USE IN DOUBLE HIGH-FREQUENCY HEAT TREATMENT AND METHOD OF MANUFACTURING THE SAME
#162Method for producing a tempered seamlessly hot-fabricated steel pipe
#163METHOD FOR PRODUCING HOT-ROLLED SEAMLESS PIPES FROM TRANSFORMABLE STEEL, IN PARTICULAR FOR PIPELINES FOR DEEP-WATER APPLICATIONS, AND CORRESPONDING PIPES
#164Martensitic Cr-containing steel and oil country tubular goods
#165Annealing furnace and method for annealing a steel strand
#166Heat treated heavy weight drill pipe
#167Wellbore tubular air quenching
#168Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance
#169Advanced Fe-5Cr-X Alloy
#170Method for manufacturing a worked member using an induction heating coil
#171Equipment line for manufacturing seamless steel tube or pipe and method of manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line
#172Lightweight boron tubular structure support integrated into seat structure
#173REGENERATIVE HEAT TREATMENT METHOD FOR HEAT-RESISTANT METAL MEMBER SUFFERING FROM CREEP DAMAGE
#174High-strength stainless steel pipe
#175RESISTANCE WELDING METHOD FOR SUCKER ROD
#176Seamless steel pipe for line pipe
#177Low alloy oil well steel pipe and method for manufacturing same
#178Heavy wall electric resistance welded steel pipe for line pipe and method for manufacturing the same
#179Method for manufacturing superior 13Cr friction-welded drillrod
#180Method and tool for hardening a hollow profile of a steel workpiece
#181STEEL STRUCTURE FOR HYDROGEN GAS, MEHTOD FOR PRODUCING HYDROGEN STORAGE TANK, AND METHOD FOR PRODUCING HYDROGEN LINE PIPE (AS AMENDED)
#182Method for making clad metal pipe
#183FLOWFORMING CORROSION RESISTANT ALLOY TUBES
#184Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment
#185PROCESSES FOR PRODUCING THICKER GAGE PRODUCTS OF NIOBIUM MICROALLOYED STEEL
#186500 MPA grade longitudinally-welded steel pipe with low yield ratio and manufacturing method therefor
#187COMBUSTION-CHAMBER BOWL RIM AND OF A COMBUSTION CHAMBER BOWL BASE OF A PISTON OF AN INTERNAL COMBUSTION ENGINE
#188Seamless steel pipe and method for producing same
#189High-strength stainless steel seamless tube or pipe for oil country tubular goods, and method of manufacturing the same
#190Method of manufacturing high strength stainless steel tube or pipe
#191Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well
#192Method for manufacturing heavy wall steel pipe
#193Method for producing a low alloy steel for oil country tubular goods having excellent sulfide stress cracking resistance
#194Ultra high strength alloy for severe oil and gas environments and method of preparation
#195Ultra-high toughness and high strength drill pipe and manufacturing process thereof
#196Thick-walled high-strength hot rolled steel sheet with excellent low-temperature toughness and method of producing same
#197THICK-WALLED HIGH-STRENGTH SOUR-RESISTANT LINE PIPE AND METHOD FOR PRODUCING SAME
#198High strength stainless steel seamless pipe with excellent corrosion resistance for oil well and method of manufacturing the same
#199Apparatus to quench a ring-shaped article
#200Deformation correcting device
#201Seamless steel pipe and method for producing the same
#202High-strength thick-walled electric resistance welded steel pipe having excellent low-temperature toughness and method of manufacturing the same
#203Production method and production facility of metal pipe
#204High-strength seamless steel pipe for oil well use having excellent resistance to sulfide stress cracking
#205High strength hot rolled steel sheet for line pipe use excellent in low temperature toughness and ductile fracture arrest performance and method of production of same
#206High performance material for coiled tubing applications and the method of producing the same
#207Method for producing, from a preform made of austenitic stainless steel with a low carbon content, a wear-resistant and corrosion-resistant cladding for a nuclear reactor, corresponding cladding and corresponding control cluster
#208Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing
#209Oil-well steel pipe having excellent sulfide stress cracking resistance
#210Method of making quenched and tempered steel pipe with high fatigue life
#211Classes of steels for tubular products
#212Thick-walled high-strength seamless steel pipe with excellent sour resistance for pipe for pipeline, and process for producing same
#213High elastic modulus shafts and method of manufacture
#214Injector nozzle for quenching within piping systems
#215Injector nozzle quenching process for piping systems
#216Structure for front side frames of automobile
#217Spray quench systems for heat treated metal products
#218Spray quench systems for heat treated metal products
#219Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same
#220Ultra high strength steel having good toughness
#221High frequency heating coil
#222Method for quenching steel pipe and method for producing steel pipe using the same
#223Method for generating a stress reduction in erected tube walls of a steam generator
#224METHOD FOR INHIBITING CORROSION UNDER INSULATION ON THE EXTERIOR OF A STRUCTURE
#225High-nitrogen stainless-steel pipe with high strength high ductility, and excellent corrosion and heat resistance
#226SEAMLESS STEEL PIPE FOR STEAM INJECTION AND METHOD FOR MANUFACTURING THE SAME
#227Induction heating coil, and an apparatus and method for manufacturing a worked member
#228Device and Method for Controllably Cooling Metal Billets to be Hot Extruded
#229Method of production of high-strength hollow bodies from multiphase martensitic steels
#230Method for manufacturing seamless steel pipe for line pipe and seamless steel pipe for line pipe
#231Method of making ultra high strength steel having good toughness
#232Steel tube for airbags and a process for manufacturing same
#233Heavy wall steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance
#234High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance
#235Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment
#236Method for manufacturing seamless pipes
#237Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well
#238Method for producing seamless steel pipe for oil wells excellent in sulfide stress cracking resistance
#239Method and apparatus for producing steel pipes having particular properties
#240Use of a Steel Alloy for Well Pipes for Perforation of Borehole Casings, and Well Pipe
#241QUENCHED AND TEMPERED STEEL PIPE WITH HIGH FATIGUE LIFE, AND ITS MANUFACTURING METHOD
#242High-strength steel machined product and method for manufacturing the same, and method for manufacturing diesel engine fuel injection pipe and common rail
#243THICK-WALLED HIGH-STRENGTH HOT ROLLED STEEL SHEET WITH EXCELLENT LOW-TEMPERATURE TOUGHNESS AND METHOD FOR PRODUCING SAME
#244Air cooling equipment for heat treatment process for martensitic stainless steel pipe or tube
#245HIGH STRENGTH HOT ROLLED STEEL SHEET FOR LINE PIPE USE EXCELLENT IN LOW TEMPERATURE TOUGHNESS AND DUCTILE FRACTURE ARREST PERFORMANCE AND METHOD OF PRODUCTION OF SAME
#246METHOD OF MANUFACTURING MARTENSITIC STAINLESS STEEL
#247FERRITIC HEAT-RESISTANT STEEL
#248Ultra high strength alloy for severe oil and gas environments and method of preparation
#249Welded steel pipe for high strength line pipe superior in low temperature toughness and method of production of the same
#250BAINITIC STEELS WITH BORON
#251High strength bainitic steel for OCTG applications
#252Method of quenching a ring-shaped article and apparatus therefor
#253SEAMLESS STEEL PIPE FOR USE AS VERTICAL WORK-OVER SECTIONS
#254Case Hardening Steel Tube Having Improved Workability and a Process for its Manufacture
#255Method for transforming steel blanks
#256Steel pipe for high strength line pipe superior in strain aging resistance and steel plate for high strength line pipe and methods of production of the same
#257High Strength Seamless Steel Pipe for Machine Structure Use Superior in Toughness and Weldability, and Method of Production of The Same
#258Method for Improving Residual Stress of Structure Member
#259Martensitic stainless steel tube and manufacturing method thereof
#260Ferritic Heat-Resistant Steel
#261Method for manufacture of complex heat treated tubular structure
#262High-strength steel for seamless, weldable steel pipes
#263HOT FORMING AND IN-SITU COOLING OF METALLIC ARTICLES
#264Method of manufacturing a bent pipe
#265Process for manufacturing an airbag inflator bottle member
#266Method of manufacturing martensitic stainless steel
#267Method and Device for Rapid Cooling of Work Pieces
#268Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe
#269Spray quench systems for heat treated metal products
#270Metal tube for reinforcing car body and car body reinforcement therewith
#271Seamless steel pipe for oil wells excellent in sulfide stress cracking resistance and method for producing the same
#272Track bushing and method and apparatus for producing the same
#273Method for manufacturing martensitic stainless steel tube
#274Track bushing and method and apparatus for producing the same
#275Track bushing and method and apparatus for producing the same
#276Kick-down drum material and method of manufacturing the same
#277Highly impact-resistant steel pipe and method for producing the same