NO793328L - Fremgangsmaate og innretning for sammenkobling av plater av ekspandert termoplastisk harpiks - Google Patents

Fremgangsmaate og innretning for sammenkobling av plater av ekspandert termoplastisk harpiks

Info

Publication number
NO793328L
NO793328L NO793328A NO793328A NO793328L NO 793328 L NO793328 L NO 793328L NO 793328 A NO793328 A NO 793328A NO 793328 A NO793328 A NO 793328A NO 793328 L NO793328 L NO 793328L
Authority
NO
Norway
Prior art keywords
procedure
thermoplastic resin
connecting plates
expanded thermoplastic
expanded
Prior art date
Application number
NO793328A
Other languages
English (en)
Other versions
NO155652C (no
NO155652B (no
Inventor
Raffaele Di Maio
Original Assignee
Stirofilm Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stirofilm Spa filed Critical Stirofilm Spa
Publication of NO793328L publication Critical patent/NO793328L/no
Publication of NO155652B publication Critical patent/NO155652B/no
Publication of NO155652C publication Critical patent/NO155652C/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0088—Expanding, swelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Sealing Material Composition (AREA)
  • Adhesives Or Adhesive Processes (AREA)
NO793328A 1978-12-12 1979-10-16 Fremgangsmaate for kontinuerlig fremstilling av en plate ved sammenbinding av to eller flere baner av ekspandert termoplastisk harpiks. NO155652C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT528278A IT1104292B (it) 1978-12-12 1978-12-12 Procedimento per l'accoppiamento di foglie di resina termoplastica espansa,e pannello composito ottenuto con detto procedimento

Publications (3)

Publication Number Publication Date
NO793328L true NO793328L (no) 1980-06-13
NO155652B NO155652B (no) 1986-01-26
NO155652C NO155652C (no) 1987-05-06

Family

ID=11120142

Family Applications (1)

Application Number Title Priority Date Filing Date
NO793328A NO155652C (no) 1978-12-12 1979-10-16 Fremgangsmaate for kontinuerlig fremstilling av en plate ved sammenbinding av to eller flere baner av ekspandert termoplastisk harpiks.

Country Status (13)

Country Link
AT (1) AT367348B (no)
BE (1) BE879571A (no)
CH (1) CH635776A5 (no)
DE (1) DE2943588C2 (no)
DK (1) DK150978C (no)
ES (1) ES485983A1 (no)
FR (1) FR2443928A1 (no)
GB (1) GB2044672B (no)
GR (1) GR66671B (no)
IT (1) IT1104292B (no)
NL (1) NL185757C (no)
NO (1) NO155652C (no)
SE (1) SE430967B (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635049A1 (de) * 1986-10-15 1988-04-28 Pegulan Werke Ag Verfahren zur herstellung einer tiefziehfaehigen schaumverbundfolie
DE19755940A1 (de) * 1997-12-16 1999-06-24 Armstrong Insulation Products Verfahren zur Herstellung einer thermisch isolierenden Plattenware
US9296126B2 (en) 2003-05-17 2016-03-29 Microgreen Polymers, Inc. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming
EP2160290B1 (en) 2007-01-17 2011-12-14 Microgreen Polymers, Inc. Multi-layer foamed polymeric object
US8568125B2 (en) 2008-04-14 2013-10-29 Microgreen Polymers Inc. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs
GB2474431B (en) * 2009-10-13 2012-10-31 Gurit Uk Ltd Production of extruded foam
EP2560818B1 (en) 2010-04-19 2015-08-26 Microgreen Polymers, Inc. A method for joining thermoplastic polymer material
EP2668033A4 (en) * 2011-01-27 2014-10-08 Microgreen Polymers Inc MICROSTRUCTURE FOR FUSION-LINKED THERMOPLASTIC POLYMER MATERIAL, AND ASSOCIATED METHODS
JP6134339B2 (ja) 2012-02-29 2017-05-24 マイクログリーン ポリマーズ，インク． 熱可塑性材料内へのガス注入方法および関連システム
MX2014014206A (es) 2012-05-22 2015-06-04 Owens Corning Intellectual Cap Producto de espuma laminada y metodos para preparar productos de espuma laminada.
WO2014110594A1 (en) 2013-01-14 2014-07-17 Microgreen Polymers, Inc. Systems for unwinding a roll of thermoplastic material interleaved with a porous material, and related methods
CN108859131A (zh) * 2018-06-05 2018-11-23 浙江乍浦塑料制品有限公司 一种中空板自动生产装置及其生产工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7100165U (de) * 1971-06-03 Lavorazione Materie Plastische Lmp Spa Verbundfolie aus geschäumten Kunst stoffschichten
DE1504917A1 (de) * 1963-05-29 1969-04-03 Rudolf Schoebel Elastischer Boden- bzw. Wandbelag
DE2114446A1 (en) * 1971-03-25 1972-09-28 Metallgesellschaft Ag Foam with dense skin - on both sides produced by joining two foam layers externally cooled

Also Published As

Publication number Publication date
IT1104292B (it) 1985-10-21
SE430967B (sv) 1983-12-27
GB2044672B (en) 1983-04-20
CH635776A5 (it) 1983-04-29
DE2943588A1 (de) 1980-06-26
SE7908575L (sv) 1980-06-13
NL7908336A (nl) 1980-06-16
DE2943588C2 (de) 1984-10-18
DK150978C (da) 1988-02-22
NL185757C (nl) 1990-07-16
FR2443928B1 (no) 1984-04-27
ATA675679A (de) 1981-11-15
GB2044672A (en) 1980-10-22
BE879571A (fr) 1980-02-15
DK435579A (da) 1980-06-13
FR2443928A1 (fr) 1980-07-11
NO155652C (no) 1987-05-06
GR66671B (no) 1981-04-08
AT367348B (de) 1982-06-25
IT7805282A0 (it) 1978-12-12
ES485983A1 (es) 1980-09-01
NO155652B (no) 1986-01-26
DK150978B (da) 1987-10-05

Similar Documents

Publication Publication Date Title
NO792434L (no) Fremgangsmaate og anordning for fremstilling av underbensproteser
DK389478A (da) Termoplastiske aromatiske polyetherketoner og fremgangsmaade til fremstilling deraf
NO811759L (no) Fremgangsmaate for fremstiling av en roerformig gjenstand og anordning hertil
NO801908L (no) Fremgangsmaate til kryssbinding av polymerer og anvendelser derav
DK358280A (da) Fremgangsmaade og midler til emballering
IT1057104B (it) Procedimento e dispositivo per la fabbricazione di giunti materia plastica per tubazioni
IL55017A0 (en) Flexible collapsible containers and method of molding them
NO793836L (no) Fremgangsmaate og innretning for boeyning av glassplater
NO148842C (no) Fremgangsmaate og apparat for kontinuerlig fremstilling av plater av ekspandert fenolharpiks
NO150879C (no) Fremgangsmaate for fremstilling av d-camforat av l-carnitinamid og d-camforat av d-carnitinamid
NO145415C (no) L fremgangsmaate og innretning for identifisering av radarmaa
NO793328L (no) Fremgangsmaate og innretning for sammenkobling av plater av ekspandert termoplastisk harpiks
JPS52151458A (en) Tab joint and method of connecting plate element by using tab joint
DK132779A (da) Fremgangsmaade til fremstilling af cishexahydrodibenzoepyranoner og tetrahydrobenzoxoiner
DK502180A (da) Plastbeholder og fremgangsmaade til fremstilling af en saadan
DK147914C (da) Lithiumpseudomonat og fremgangsmaade til fremstilling deraf
GB1555996A (en) Joints and connecting devices thereofor
NO794149L (no) Fremgangsmaate til gjenvinning og gjenanvendelse av nikkel-elektropletteringsbad
PL204925A1 (pl) Sposob i urzadzenie do wytwarzania produktow z materialu termoplastycznego usieciowanego
NO792852L (no) Fremgangsmaate for fremstilling av gips og gipsplater
NO148726C (no) Fremgangsmaate og anordning for aa bestemme mengden av et kjemisk avisningsmiddel paa en veibane
DK151570C (da) Afsvovlningsmiddel og fremgangsmaade til fremstilling deraf
DK224279A (da) Polyjodbenzenderivater og fremgangsmaade til fremstilling deraf
SE416605B (sv) Forfarande for krypterad overforing av information jemte anordning for utforande av forfarandet
NO901904L (no) Fremgangsmaate og anordning for boeying av korrugerte plater