Making multi-wall tubes

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CPC
B21C37/154

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BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for Manufacture of tubes of special shape

Current Industry

B21C37/154Making multi-wall tubes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Conduits for transporting fluids and methods of fabricating the same
- Patent number 11,835,156
- Issue date Dec 5, 2023
- The Boeing Company
- Tony Di Carlo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Systems and methods for production of metallurgically bonded clad b...
- Patent number 11,826,804
- Issue date Nov 28, 2023
- Bhaven Chakravarti
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Double walled tube segment and method for producing said tube segment
- Patent number 11,745,240
- Issue date Sep 5, 2023
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Tessa Virginia Van Kol
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Forming process using an outer sacrificial layer
- Patent number 11,730,950
- Issue date Aug 22, 2023
- Heraeus Deutschland GmbH & Co. KG
- Bernd Spaniol
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Connection tube and its method of manufacturing
- Patent number 11,679,428
- Issue date Jun 20, 2023
- Sandvik Intellectual Property AB
- Olle Eriksson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Tubular element and assemblies
- Patent number 11,400,501
- Issue date Aug 2, 2022
- AB Sandvik Materials Technology
- Henrik Häll
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing a double-walled pipe and a double-walled pipe
- Patent number 11,287,078
- Issue date Mar 29, 2022
- H. Butting GmbH & Co. KG
- Thomas Schüller
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tube portion
- Patent number 11,143,530
- Issue date Oct 12, 2021
- AB Sandvik Materials Technology
- Mikael Melin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sensor for a high-pressure line, and method for producing same
- Patent number 11,112,063
- Issue date Sep 7, 2021
- Sandvik Materials Technology Deutschland GmbH
- Udo Rauffmann
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Tube structure and a method for manufacturing a tube structure
- Patent number 11,084,077
- Issue date Aug 10, 2021
- Sandvik Intellectual Property AB
- Erika Hedblom
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Long tubular pipe comprising a separating member and methods for mo...
- Patent number 11,022,236
- Issue date Jun 1, 2021
- STELIA AEROSPACE
- Daniel Perherin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Process for manufacturing high-nitrogen stainless steel pipe with h...
- Patent number 11,015,238
- Issue date May 25, 2021
- ODA INDUSTRIES CO., LTD.
- Harumatu Miura
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Bimetallic tube and method for manufacturing a bimetallic tube
- Patent number 10,994,319
- Issue date May 4, 2021
- Sandvik Intellectual Property AB
- James Shipley
- B32 - LAYERED PRODUCTS
Information Patent Grant
Tubular element to transfer abrasive materials, in particular concr...
- Patent number 10,987,712
- Issue date Apr 27, 2021
- VALME S.R.L.-UNICO SOCIO
- Paolo Dario Maini
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing a multilayer pipe having a metallurgical bond...
- Patent number 10,941,885
- Issue date Mar 9, 2021
- VALLOUREC SOLUÇÕES TUBULARES DO BRASIL S.A.
- Julio Marcio Silveira E Silva
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Ultrasonic welding of annular components
- Patent number 10,919,106
- Issue date Feb 16, 2021
- General Electric Company
- Todd Jay Rockstroh
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pipe body, pipe and method of making pipe
- Patent number 10,907,752
- Issue date Feb 2, 2021
- Zhejiang Sanhua Intelligent Controls CO., Ltd.
- Yiqi Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
System and method for additively manufacturing boiler tubes
- Patent number 10,890,388
- Issue date Jan 12, 2021
- General Electric Technology GmbH
- Ronald Francis Konopacki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing a tube of metal as well as a tube of metal
- Patent number 10,724,658
- Issue date Jul 28, 2020
- Sandvik Materials Technology Deutschland GmbH
- Jonas Rosèn
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for producing a double-walled pipe and a double-walled pipe
- Patent number 10,718,462
- Issue date Jul 21, 2020
- H. Butting GmbH
- Thomas Schüller
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pipe for conveying abrasive materials such as concrete, apparatus a...
- Patent number 10,689,211
- Issue date Jun 23, 2020
- VALME S.R.L.-UNICO SOCIO
- Fabio Ferre'
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and coating device for applying a cladding layer during the...
- Patent number 10,639,702
- Issue date May 5, 2020
- Eisenbau Kramer GmbH
- Peter Scobel
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-nitrogen stainless-steel pipe with high strength high ductilit...
- Patent number 10,633,733
- Issue date Apr 28, 2020
- ODA INDUSTRIES CO., LTD.
- Harumatu Miura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Refrigerant to water heat exchanger
- Patent number 10,557,667
- Issue date Feb 11, 2020
- Carrier Corporation
- Derek Leman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Improving the bending behaviour of mechanically-lined rigid pipe
- Patent number 10,406,577
- Issue date Sep 10, 2019
- Acergy France SAS
- Gregory Alexandre Toguyeni
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Process for producing a multilayer pipe by expansion and multilayer...
- Patent number 10,300,516
- Issue date May 28, 2019
- VALLOUREC SOLUÇÕES TUBULARES DO BRASIL S.A.
- Julio Marcio Silveira E Silva
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Multi-walled pipe and manufacture thereof
- Patent number 10,260,660
- Issue date Apr 16, 2019
- TI Automotive (Heidelberg) GmbH
- Sebastian Meier
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for producing a multi-layer large pipe
- Patent number 10,183,320
- Issue date Jan 22, 2019
- Eisenbau Krämer GmbH
- Thilo Reichel
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Molding apparatus, method for replacing components of molding appar...
- Patent number 9,855,593
- Issue date Jan 2, 2018
- Sumitomo Heavy Industries, Ltd.
- Masayuki Ishizuka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing rectangular tube having stepped portion
- Patent number 9,821,355
- Issue date Nov 21, 2017
- Nisshin Steel Co., Ltd.
- Ryuji Tanoue
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
A METHOD OF MANUFACTURING A DOUBLE-WALLED ELBOW PIPE SEGMENT, A PIP...
- Publication number 20240288099
- Publication date Aug 29, 2024
- Pipeflex Systems Ltd
- Malcolm BIRCHALL
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DOUBLE WALLED TUBE SEGMENT AND METHOD FOR PRODUCING SAID TUBE SEGMENT
- Publication number 20220266323
- Publication date Aug 25, 2022
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Tessa Virginia VAN KOL
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
RING ELECTRODE FOR A MEDICAL DEVICE
- Publication number 20220040474
- Publication date Feb 10, 2022
- Heraeus Deutschland GmbH & Co. KG
- Bernd SPANIOL
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
FORMING PROCESS USING AN OUTER SACRIFICIAL LAYER
- Publication number 20220040744
- Publication date Feb 10, 2022
- Heraeus Deutschland GmbH & Co. KG
- Bernd SPANIOL
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
ASSEMBLY AND WELDING UNIT FOR MANUFACTURING PIPES
- Publication number 20210245307
- Publication date Aug 12, 2021
- AKTSIONERNOE OBSHCHESTVO "CHELYABINSKIY TRUBOPROKATNYI ZAVOD" (PAO "CHTPZ")
- Aleksandr Igorevich ROMANTSOV
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
TUBE PORTION
- Publication number 20210215516
- Publication date Jul 15, 2021
- AB SANDVIK MATERIALS TECHNOLOGY
- Mikael MELIN
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
TUBULAR ELEMENT AND ASSEMBLIES
- Publication number 20210197242
- Publication date Jul 1, 2021
- AB SANDVIK MATERIALS TECHNOLOGY
- Henrik HÄLL
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
A TUBE STRUCTURE AND A METHOD FOR MANUFACTURING A TUBE STRUCTURE
- Publication number 20210146418
- Publication date May 20, 2021
- Sandvik Intellectual Property AB
- Erika HEDBLOM
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
LONG TUBULAR PIPE COMPRISING A SEPARATING MEMBER AND METHODS FOR MO...
- Publication number 20210010619
- Publication date Jan 14, 2021
- STELIA AEROSPACE
- Daniel Perherin
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
MANUFACTURING DEVICE AND METHOD FOR BIMETAL COMPOSITE HOLLOW BILLET
- Publication number 20200384518
- Publication date Dec 10, 2020
- Taiyuan PLS Technology Development Co., Ltd.
- Zhiyong ZHANG
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR PRODUCING A DOUBLE-WALLED PIPE AND A DOUBLE-WALLED PIPE
- Publication number 20200309310
- Publication date Oct 1, 2020
- H. BUTTING GMBH & CO. KG
- Thomas SCHÜLLER
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SYSTEMS AND METHODS FOR PRODUCTION OF METALLURGICALLY BONDED CLAD B...
- Publication number 20200276627
- Publication date Sep 3, 2020
- Bhaven Chakravarti
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD FOR PRODUCING A HIGH-PRESSURE PIPE
- Publication number 20200130035
- Publication date Apr 30, 2020
- Sandvik Materials Technology Deutschland GmbH
- Udo RAUFFMANN
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
SENSOR FOR A HIGH-PRESSURE LINE, AND METHOD FOR PRODUCING SAME
- Publication number 20200025339
- Publication date Jan 23, 2020
- Sandvik Materials Technology Deutschland GmbH
- Udo RAUFFMANN
- G01 - MEASURING TESTING
Information Patent Application
CONNECTION TUBE AND ITS METHOD OF MANUFACTURING
- Publication number 20190314877
- Publication date Oct 17, 2019
- Sandvik Intellectual Property AB
- Olle ERIKSSON
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
TUBULAR ELEMENT TO TRANSFER ABRASIVE MATERIALS, IN PARTICULAR CONCR...
- Publication number 20190291155
- Publication date Sep 26, 2019
- Valme S.R.L. - Unico Socio
- Paolo Dario MAINI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
BIMETALLIC TUBE AND METHOD FOR MANUFACTURING A BIMETALLIC TUBE
- Publication number 20190168274
- Publication date Jun 6, 2019
- Sandvik Intellectual Property AB
- James SHIPLEY
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR MANUFACTURING DOUBLE PIPE
- Publication number 20190061044
- Publication date Feb 28, 2019
- HUSCO Co., Ltd
- Jin-Hyun JEONG
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
A METHOD FOR MANUFACTURING A TUBE OF METAL AS WELL AS A TUBE OF METAL
- Publication number 20180356009
- Publication date Dec 13, 2018
- Sandvik Materials Technology Deutschland GmbH
- Jonas ROSÈN
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
REFRIGERANT TO WATER HEAT EXCHANGER
- Publication number 20180320979
- Publication date Nov 8, 2018
- Carrier Corporation
- Derek Leman
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
METHOD FOR PRODUCING A DOUBLE-WALLED PIPE AND A DOUBLE-WALLED PIPE
- Publication number 20180313490
- Publication date Nov 1, 2018
- H. BUTTING GMBH & CO. KG
- Thomas SCHÜLLER
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
COMPOSITE PIPE COMPRISED OF A CARRIER PIPE AND AT LEAST ONE PROTECT...
- Publication number 20180313471
- Publication date Nov 1, 2018
- SALZGITTER FLACHSTAHL GMBH
- MARC DEBEAUX
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PIPE FOR CONVEYING ABRASIVE MATERIALS SUCH AS CONCRETE, APPARATUS A...
- Publication number 20180072513
- Publication date Mar 15, 2018
- Valme S.R.L. - Unico Socio
- Fabio Ferre'
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method and Coating Device for Applying a Cladding Layer During the...
- Publication number 20180050382
- Publication date Feb 22, 2018
- Eisenbau Krämer GmbH
- Peter SCOBEL
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Improving the Bending Behaviour of Mechanically-Lined Rigid Pipe
- Publication number 20170341119
- Publication date Nov 30, 2017
- ACERGY FRANCE SAS
- Gregory Alexandre Toguyeni
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR PRODUCING A LARGE MULTILAYER PIPE
- Publication number 20170113257
- Publication date Apr 27, 2017
- EISENBAU KRÄMER GMBH
- Vitaliy Pavlyk
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PROCESS FOR PRODUCING A MULTILAYER PIPE HAVING A METALLURGICAL BOND...
- Publication number 20160273683
- Publication date Sep 22, 2016
- VALLOUREC TUBOS DO BRASIL S.A.
- Julio Marcio SILVEIRA E SILVA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PROCESS FOR PRODUCING A MULTILAYER PIPE BY EXPANSION AND MULTILAYER...
- Publication number 20160207086
- Publication date Jul 21, 2016
- VALLOUREC TUBOS DO BRASIL S.A.
- Julio Marcio SILVEIRA E SILVA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR PRODUCING A MULTI-LAYER LARGE PIPE
- Publication number 20160082492
- Publication date Mar 24, 2016
- Thilo REICHEL
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
REFRIGERANT TO WATER HEAT EXCHANGER
- Publication number 20140318752
- Publication date Oct 30, 2014
- Carrier Corporation
- Derek Leman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Making multi-wall tubes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Conduits for transporting fluids and methods of fabricating the same

Systems and methods for production of metallurgically bonded clad b...

Double walled tube segment and method for producing said tube segment

Forming process using an outer sacrificial layer

Connection tube and its method of manufacturing

Tubular element and assemblies

Method for producing a double-walled pipe and a double-walled pipe

Tube portion

Sensor for a high-pressure line, and method for producing same

Tube structure and a method for manufacturing a tube structure

Long tubular pipe comprising a separating member and methods for mo...

Process for manufacturing high-nitrogen stainless steel pipe with h...

Bimetallic tube and method for manufacturing a bimetallic tube

Tubular element to transfer abrasive materials, in particular concr...

Process for producing a multilayer pipe having a metallurgical bond...

Ultrasonic welding of annular components

Pipe body, pipe and method of making pipe

System and method for additively manufacturing boiler tubes

Method for manufacturing a tube of metal as well as a tube of metal

Method for producing a double-walled pipe and a double-walled pipe

Pipe for conveying abrasive materials such as concrete, apparatus a...

Method and coating device for applying a cladding layer during the...

High-nitrogen stainless-steel pipe with high strength high ductilit...

Refrigerant to water heat exchanger

Improving the bending behaviour of mechanically-lined rigid pipe

Process for producing a multilayer pipe by expansion and multilayer...

Multi-walled pipe and manufacture thereof

Method for producing a multi-layer large pipe

Molding apparatus, method for replacing components of molding appar...

Method of manufacturing rectangular tube having stepped portion

Patents Applicationslast 30 patents

A METHOD OF MANUFACTURING A DOUBLE-WALLED ELBOW PIPE SEGMENT, A PIP...

DOUBLE WALLED TUBE SEGMENT AND METHOD FOR PRODUCING SAID TUBE SEGMENT

RING ELECTRODE FOR A MEDICAL DEVICE

FORMING PROCESS USING AN OUTER SACRIFICIAL LAYER

ASSEMBLY AND WELDING UNIT FOR MANUFACTURING PIPES

TUBE PORTION

TUBULAR ELEMENT AND ASSEMBLIES

A TUBE STRUCTURE AND A METHOD FOR MANUFACTURING A TUBE STRUCTURE

LONG TUBULAR PIPE COMPRISING A SEPARATING MEMBER AND METHODS FOR MO...

MANUFACTURING DEVICE AND METHOD FOR BIMETAL COMPOSITE HOLLOW BILLET

METHOD FOR PRODUCING A DOUBLE-WALLED PIPE AND A DOUBLE-WALLED PIPE

SYSTEMS AND METHODS FOR PRODUCTION OF METALLURGICALLY BONDED CLAD B...

METHOD FOR PRODUCING A HIGH-PRESSURE PIPE

SENSOR FOR A HIGH-PRESSURE LINE, AND METHOD FOR PRODUCING SAME

CONNECTION TUBE AND ITS METHOD OF MANUFACTURING

TUBULAR ELEMENT TO TRANSFER ABRASIVE MATERIALS, IN PARTICULAR CONCR...

BIMETALLIC TUBE AND METHOD FOR MANUFACTURING A BIMETALLIC TUBE

METHOD FOR MANUFACTURING DOUBLE PIPE

A METHOD FOR MANUFACTURING A TUBE OF METAL AS WELL AS A TUBE OF METAL

REFRIGERANT TO WATER HEAT EXCHANGER

METHOD FOR PRODUCING A DOUBLE-WALLED PIPE AND A DOUBLE-WALLED PIPE

COMPOSITE PIPE COMPRISED OF A CARRIER PIPE AND AT LEAST ONE PROTECT...

PIPE FOR CONVEYING ABRASIVE MATERIALS SUCH AS CONCRETE, APPARATUS A...

Method and Coating Device for Applying a Cladding Layer During the...

Improving the Bending Behaviour of Mechanically-Lined Rigid Pipe

METHOD FOR PRODUCING A LARGE MULTILAYER PIPE

PROCESS FOR PRODUCING A MULTILAYER PIPE HAVING A METALLURGICAL BOND...

PROCESS FOR PRODUCING A MULTILAYER PIPE BY EXPANSION AND MULTILAYER...

METHOD FOR PRODUCING A MULTI-LAYER LARGE PIPE

REFRIGERANT TO WATER HEAT EXCHANGER