Upsetting

Industry

CPC
B21J5/08

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21JFORGING HAMMERING PRESSING METAL RIVETING FORGE FURNACES B21J5/00Methods for forging, hammering, or pressing Special equipment or accessories therefor

Current Industry

B21J5/08Upsetting

Industries

Patents Grantslast 30 patents

Information Patent Grant
Rebar upsetting process and rebar upset forging machine
- Patent number 12,090,544
- Issue date Sep 17, 2024
- ZHEJIANG RUICHENG MACHINERY MANUFACTURING CO., LTD.
- Chengtao He
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Pressing method and method of manufacturing mechanical apparatus
- Patent number 11,931,983
- Issue date Mar 19, 2024
- NSK Ltd.
- Nobuyuki Hagiwara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and device for thickening a plastically deformable hollow bo...
- Patent number 11,890,667
- Issue date Feb 6, 2024
- FELSS Systems GmbH
- Werner Michi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Forming near-net shape single-piece piston blanks
- Patent number 11,661,903
- Issue date May 30, 2023
- KS Kolbenschmidt US, Inc.
- David J. Boye
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing variable wall thickness steel pipe and vari...
- Patent number 11,590,547
- Issue date Feb 28, 2023
- Nippon Steel Corporation
- Masaaki Mizumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Manufacturing method of wire rod, manufacturing apparatus of wire r...
- Patent number 11,478,840
- Issue date Oct 25, 2022
- Nidec Corporation
- Shigeharu Sumi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for the forming manufacturing of a gear toothing and tool de...
- Patent number 11,426,785
- Issue date Aug 30, 2022
- ZF Friedrichshafen AG
- Peter Hoehne
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hollow drive shaft using upsetting method and manufacturing method...
- Patent number 11,383,291
- Issue date Jul 12, 2022
- ILJIN STEEL CORPORATION
- Sung Ha Kim
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Methods for forging a piston blank
- Patent number 11,286,877
- Issue date Mar 29, 2022
- KS Kolbenschmidt US, Inc.
- David J. Boye
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing engine valve intermediate product with boss...
- Patent number 11,285,570
- Issue date Mar 29, 2022
- NITTAN VALVE CO., LTD.
- Atsuyuki Ichimiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Forging method and forging apparatus
- Patent number 11,161,166
- Issue date Nov 2, 2021
- BUMCHUN PRECISION CO., LTD.
- Yang Il Park
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Variable nozzle unit, turbocharger, and method for manufacturing va...
- Patent number 11,131,237
- Issue date Sep 28, 2021
- IHI Corporation
- Koutarou Itou
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Swaging device and press
- Patent number 11,103,916
- Issue date Aug 31, 2021
- CIE Automotive, S.A.
- Francisco Larrucea De La Rica
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hot steel forging in horizontal press
- Patent number 11,065,673
- Issue date Jul 20, 2021
- TECNIFORJA—FORJAGEM E ESTAMPAGEM DE PEÇAS TÉCNICAS, LDA
- Artur José Pereira Teixeira Mendes
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and tools for manufacturing of seamless tubular shapes, espe...
- Patent number 11,045,853
- Issue date Jun 29, 2021
- Aalto University Foundation sr
- Pedro Vilaca
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Textured sheet metal, and process and apparatus for producing textu...
- Patent number 11,045,860
- Issue date Jun 29, 2021
- Gripmetal Limited
- Ray Arbesman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and device for thickening a plastically deformable hollow bo...
- Patent number 11,007,564
- Issue date May 18, 2021
- FELSS Systems GmbH
- Werner Michi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for controlling microstructure and texture of tantalum
- Patent number 10,961,613
- Issue date Mar 30, 2021
- Agency for Defense Development
- Seong Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Additive forging method for preparing homogenized forged pieces
- Patent number 10,953,486
- Issue date Mar 23, 2021
- INSTITUTE OF METAL RESEARCH ACADEMY OF SCIENCES
- Dianzhong Li
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for forging shaft member of constant velocity universal joint
- Patent number 10,933,462
- Issue date Mar 2, 2021
- NTN Corporation
- Yoshiya Mano
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Fastener compatible with helical toothed driver
- Patent number 10,926,384
- Issue date Feb 23, 2021
- William Norton
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Torsion beam manufacturing method, torsion beam manufacturing appar...
- Patent number 10,888,916
- Issue date Jan 12, 2021
- Nippon Steel Corporation
- Keinosuke Iguchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Nut integrated with bracket and method of manufacturing the same
- Patent number 10,883,529
- Issue date Jan 5, 2021
- Hyundai Motor Company
- Heui Bom Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Press-working apparatus, press-working method, and press-molded pro...
- Patent number 10,857,583
- Issue date Dec 8, 2020
- Nippon Steel Corporation
- Nobuo Yoshikawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
High performance titanium connecting sealing ring for deep-sea oil...
- Patent number 10,851,448
- Issue date Dec 1, 2020
- BAOJI YIXIN METALS PRODUCT WORKS
- Zicheng Sun
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Lightweight fastener design
- Patent number 10,816,024
- Issue date Oct 27, 2020
- Cold Heading, Inc.
- Alan M. Lares
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Upset protrusion joining and forging gun therefor
- Patent number 10,807,148
- Issue date Oct 20, 2020
- FCA US LLC
- Kurt P Damphousse
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Helical toothed driver and compatible fastener
- Patent number 10,780,559
- Issue date Sep 22, 2020
- William Norton
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Frame component for a belt winder and method for producing same
- Patent number 10,751,786
- Issue date Aug 25, 2020
- TRW Automotive GmbH
- Udo Zolnai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle body component, manufacturing device of the same, and manuf...
- Patent number 10,710,141
- Issue date Jul 14, 2020
- Toyota Jidosha Kabushiki Kaisha
- Naoya Kosaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
COMPOUND PROFILING FORGING METHOD FOR LARGE WIND TURBINE MAIN SHAFT
- Publication number 20240286186
- Publication date Aug 29, 2024
- Zenkung Heavy Industry (Jiangsu) Co., Ltd
- Zhenwei Yan
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
REBAR UPSETTING PROCESS AND REBAR UPSET FORGING MACHINE
- Publication number 20240226993
- Publication date Jul 11, 2024
- ZHEJIANG RUICHENG MACHINERY MANUFACTURING CO., LTD.
- Chengtao HE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
REBAR UPSETTING PROCESS AND REBAR UPSET FORGING MACHINE
- Publication number 20240131575
- Publication date Apr 25, 2024
- ZHEJIANG RUICHENG MACHINERY MANUFACTURING CO., LTD.
- Chengtao HE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HOLLOW DRIVE SHAFT USING UPSETTING METHOD AND MANUFACTURING METHOD...
- Publication number 20220297179
- Publication date Sep 22, 2022
- ILJIN STEEL CORPORATION
- Sung Ha KIM
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Near-Net Shape Single-Piece Piston Blanks
- Publication number 20220178328
- Publication date Jun 9, 2022
- KS Kolbenschmidt US, Inc.
- David J. Boye
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PRESSING METHOD AND METHOD OF MANUFACTURING MECHANICAL APPARATUS
- Publication number 20210260844
- Publication date Aug 26, 2021
- NSK Ltd.
- Nobuyuki HAGIWARA
- B30 - PRESSES
Information Patent Application
HOLLOW DRIVE SHAFT USING UPSETTING METHOD AND MANUFACTURING METHOD...
- Publication number 20210252584
- Publication date Aug 19, 2021
- ILJIN STEEL CORPORATION
- Sung Ha KIM
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD AND DEVICE FOR THICKENING A PLASTICALLY DEFORMABLE HOLLOW BO...
- Publication number 20210229160
- Publication date Jul 29, 2021
- FELSS Systems GmbH
- WERNER MICHI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR MANUFACTURING A BEARING WASHER
- Publication number 20200318686
- Publication date Oct 8, 2020
- NTN CORPORATION
- Kohei MIZUTA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF MANUFACTURING ROLLING BEARING RING
- Publication number 20200291999
- Publication date Sep 17, 2020
- NTN CORPORATION
- Kohei MIZUTA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Method for the Forming Manufacturing of a Gear Toothing and Tool De...
- Publication number 20200261961
- Publication date Aug 20, 2020
- ZF Friedrichshafen AG
- Peter Hoehne
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND APPARATUS FOR SHAFT DIAMETER ENLARGEMENT
- Publication number 20200198000
- Publication date Jun 25, 2020
- Neturen Co., Ltd.
- Yoshitaka KUWAHARA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANUFACTURING METHOD OF WIRE ROD, MANUFACTURING APPARATUS OF WIRE R...
- Publication number 20200139423
- Publication date May 7, 2020
- NIDEC CORPORATION
- Shigeharu SUMI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
ADDITIVE FORGING METHOD FOR PREPARING HOMOGENIZED FORGED PIECES
- Publication number 20190366420
- Publication date Dec 5, 2019
- INSTITUTE OF METAL RESEARCH CHINESE ACADEMY OF SCIENCES
- Mingyue SUN
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Integral Tubular Member and Methods of Manufacturing Same
- Publication number 20190338603
- Publication date Nov 7, 2019
- Complete Group Technologies Ltd.
- Ginette Marie CONRAD
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
LIGHTWEIGHT FASTENER DESIGN
- Publication number 20190242422
- Publication date Aug 8, 2019
- Cold Heading Company
- Alan M. Lares
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHODS FOR FORGING A PISTON BLANK AND RESULTANT NEAR-NET SHAPE SIN...
- Publication number 20190178204
- Publication date Jun 13, 2019
- KS Kolbenschmidt US, Inc.
- David J. Boye
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
SWAGING DEVICE AND PRESS
- Publication number 20190134698
- Publication date May 9, 2019
- CIE Automotive, S.A.
- Francisco Larrucea De La Rica
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD OF MANUFACTURING VARIABLE WALL THICKNESS STEEL PIPE AND VARI...
- Publication number 20190076902
- Publication date Mar 14, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masaaki MIZUMURA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
TEXTURED SHEET METAL, AND PROCESS AND APPARATUS FOR PRODUCING TEXTU...
- Publication number 20190076906
- Publication date Mar 14, 2019
- NuGripmetal S.A.R.L.
- Ray Arbesman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Method and Tools for Manufacturing of Seamless Tubular Shapes, Espe...
- Publication number 20190060969
- Publication date Feb 28, 2019
- Aalto University Foundation sr
- Pedro VILACA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANUFACTURING METHOD OF PRESS-MOLDED ARTICLE AND PRESS MOLDING APPA...
- Publication number 20180361461
- Publication date Dec 20, 2018
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Kazuki SAKAMOTO
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
UPSET PROTRUSION JOINING AND FORGING GUN THEREFOR
- Publication number 20180361463
- Publication date Dec 20, 2018
- Kurt P. Damphousse
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
FORGING APPARATUS AND METHOD
- Publication number 20180333768
- Publication date Nov 22, 2018
- Rolls-Royce plc
- Leslie WILKINSON
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
METHOD FOR MANUFACTURING TUBULAR MEMBER
- Publication number 20180318910
- Publication date Nov 8, 2018
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Hiroshi YOSHIDA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
COMPOSITE MEMBER AND METHOD FOR PRODUCING COMPOSITE MEMBER
- Publication number 20180304343
- Publication date Oct 25, 2018
- Neturen Co., Ltd.
- Yoshitaka KUWAHARA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HIGH PERFORMANCE TITANIUM CONNECTING SEALING RING FOR DEEP-SEA OIL...
- Publication number 20180266560
- Publication date Sep 20, 2018
- BAOJI YIXIN METALS PRODUCT WORKS
- Zicheng Sun
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR FORGING SHAFT MEMBER OF CONSTANT VELOCITY UNIVERSAL JOINT
- Publication number 20180200782
- Publication date Jul 19, 2018
- NTN Corporation
- Yoshiya MANO
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND DEVICE FOR THICKENING A PLASTICALLY DEFORMABLE HOLLOW BO...
- Publication number 20180185901
- Publication date Jul 5, 2018
- FELSS Systems GmbH
- WERNER MICHI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
CONSTRUCTING-AND-FORGING METHOD FOR PREPARING HOMOGENIZED FORGED PI...
- Publication number 20180078995
- Publication date Mar 22, 2018
- INSTITUTE OF METAL RESEARCH CHINESE ACADEMY OF SCIENCES
- Mingyue SUN
- B08 - CLEANING

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Rebar upsetting process and rebar upset forging machine

Pressing method and method of manufacturing mechanical apparatus

Method and device for thickening a plastically deformable hollow bo...

Forming near-net shape single-piece piston blanks

Method of manufacturing variable wall thickness steel pipe and vari...

Manufacturing method of wire rod, manufacturing apparatus of wire r...

Method for the forming manufacturing of a gear toothing and tool de...

Hollow drive shaft using upsetting method and manufacturing method...

Methods for forging a piston blank

Method of manufacturing engine valve intermediate product with boss...

Forging method and forging apparatus

Variable nozzle unit, turbocharger, and method for manufacturing va...

Swaging device and press

Hot steel forging in horizontal press

Method and tools for manufacturing of seamless tubular shapes, espe...

Textured sheet metal, and process and apparatus for producing textu...

Method and device for thickening a plastically deformable hollow bo...

Method for controlling microstructure and texture of tantalum

Additive forging method for preparing homogenized forged pieces

Method for forging shaft member of constant velocity universal joint

Fastener compatible with helical toothed driver

Torsion beam manufacturing method, torsion beam manufacturing appar...

Nut integrated with bracket and method of manufacturing the same

Press-working apparatus, press-working method, and press-molded pro...

High performance titanium connecting sealing ring for deep-sea oil...

Lightweight fastener design

Upset protrusion joining and forging gun therefor

Helical toothed driver and compatible fastener

Frame component for a belt winder and method for producing same

Vehicle body component, manufacturing device of the same, and manuf...

Patents Applicationslast 30 patents

COMPOUND PROFILING FORGING METHOD FOR LARGE WIND TURBINE MAIN SHAFT

REBAR UPSETTING PROCESS AND REBAR UPSET FORGING MACHINE

REBAR UPSETTING PROCESS AND REBAR UPSET FORGING MACHINE

HOLLOW DRIVE SHAFT USING UPSETTING METHOD AND MANUFACTURING METHOD...

Near-Net Shape Single-Piece Piston Blanks

PRESSING METHOD AND METHOD OF MANUFACTURING MECHANICAL APPARATUS

HOLLOW DRIVE SHAFT USING UPSETTING METHOD AND MANUFACTURING METHOD...

METHOD AND DEVICE FOR THICKENING A PLASTICALLY DEFORMABLE HOLLOW BO...

METHOD FOR MANUFACTURING A BEARING WASHER

METHOD OF MANUFACTURING ROLLING BEARING RING

Method for the Forming Manufacturing of a Gear Toothing and Tool De...

METHOD AND APPARATUS FOR SHAFT DIAMETER ENLARGEMENT

MANUFACTURING METHOD OF WIRE ROD, MANUFACTURING APPARATUS OF WIRE R...

ADDITIVE FORGING METHOD FOR PREPARING HOMOGENIZED FORGED PIECES

Integral Tubular Member and Methods of Manufacturing Same

LIGHTWEIGHT FASTENER DESIGN

METHODS FOR FORGING A PISTON BLANK AND RESULTANT NEAR-NET SHAPE SIN...

SWAGING DEVICE AND PRESS

METHOD OF MANUFACTURING VARIABLE WALL THICKNESS STEEL PIPE AND VARI...

TEXTURED SHEET METAL, AND PROCESS AND APPARATUS FOR PRODUCING TEXTU...

Method and Tools for Manufacturing of Seamless Tubular Shapes, Espe...

MANUFACTURING METHOD OF PRESS-MOLDED ARTICLE AND PRESS MOLDING APPA...

UPSET PROTRUSION JOINING AND FORGING GUN THEREFOR

FORGING APPARATUS AND METHOD

METHOD FOR MANUFACTURING TUBULAR MEMBER

COMPOSITE MEMBER AND METHOD FOR PRODUCING COMPOSITE MEMBER

HIGH PERFORMANCE TITANIUM CONNECTING SEALING RING FOR DEEP-SEA OIL...

METHOD FOR FORGING SHAFT MEMBER OF CONSTANT VELOCITY UNIVERSAL JOINT

METHOD AND DEVICE FOR THICKENING A PLASTICALLY DEFORMABLE HOLLOW BO...

CONSTRUCTING-AND-FORGING METHOD FOR PREPARING HOMOGENIZED FORGED PI...