[go: up one dir, main page]

TR200103839T2 - Çok kanallı boru hattı asamblajının imaline yönelik düzen. - Google Patents

Çok kanallı boru hattı asamblajının imaline yönelik düzen.

Info

Publication number
TR200103839T2
TR200103839T2 TR2001/03839T TR200103839T TR200103839T2 TR 200103839 T2 TR200103839 T2 TR 200103839T2 TR 2001/03839 T TR2001/03839 T TR 2001/03839T TR 200103839 T TR200103839 T TR 200103839T TR 200103839 T2 TR200103839 T2 TR 200103839T2
Authority
TR
Turkey
Prior art keywords
pipeline
pipelines
layout
production
molded
Prior art date
Application number
TR2001/03839T
Other languages
English (en)
Inventor
Byun Moo-Won
Original Assignee
Byun Moo-Won
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
Priority claimed from KR1019990026147A external-priority patent/KR20010005334A/ko
Priority claimed from KR1019990047832A external-priority patent/KR20010039447A/ko
Application filed by Byun Moo-Won filed Critical Byun Moo-Won
Publication of TR200103839T2 publication Critical patent/TR200103839T2/tr

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406Details thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151Coating hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/303Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices
    • G02B6/4459Ducts; Conduits; Hollow tubes for air blown fibres
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462Tubings, i.e. having a closed section
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/06Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06Rod-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885External treatment, e.g. by using air rings for cooling tubular films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9115Cooling of hollow articles
    • B29C48/912Cooling of hollow articles of tubular films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • B29C48/9135Cooling of flat articles, e.g. using specially adapted supporting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Bu bulus ön kaliplamaya tabi tutulmus çok sayida iç boru hattinin bir kroshed kaliba beslenmesini ve erimis haldeki bir dis boru hattinin kroshed kaliptan iç boru hatlarinin etrafinda ekstrüzyonlanmasini, ve bundan sonra da ön kaliplamaya tabi tutulmus iç boru hatlarinin ve erimis haldeki dis boru hattinin bir kalibin nervürlü tüneline verilmesini ve burada erimis haldeki bir dis boru hattinin nervürler ihtiva edecek sekilde kaliplanmasini, ve dolayisi ile de çok kanalli bir boru hatti asamblajinin meydana getirilmesini, ve bu asamblajin da uzunlamasina çok sayida iç boru hatti ve iç boru hatlarini tüm uzunluklarinda çevreleyen ve bunlari tutan nervürlü bir dis boru hatti ihtiva etmesini içerir.
TR2001/03839T 1999-06-30 2000-05-13 Çok kanallı boru hattı asamblajının imaline yönelik düzen. TR200103839T2 (tr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019990026147A KR20010005334A (ko) 1999-06-30 1999-06-30 통신선로용 다공관의 제조장치 및 그의 제조방법
KR1019990047832A KR20010039447A (ko) 1999-10-30 1999-10-30 통신선로용 다공관 제조장치

Publications (1)

Publication Number Publication Date
TR200103839T2 true TR200103839T2 (tr) 2002-04-22

Family

ID=36675167

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2001/03839T TR200103839T2 (tr) 1999-06-30 2000-05-13 Çok kanallı boru hattı asamblajının imaline yönelik düzen.

Country Status (25)

Country Link
US (1) US6676881B1 (tr)
EP (1) EP1198336B1 (tr)
JP (1) JP2003503243A (tr)
KR (1) KR100387196B1 (tr)
CN (1) CN1111116C (tr)
AP (1) AP1304A (tr)
AT (1) ATE288823T1 (tr)
AU (1) AU761343B2 (tr)
BG (1) BG106244A (tr)
BR (1) BR0012187A (tr)
CA (1) CA2376262A1 (tr)
CZ (1) CZ20014621A3 (tr)
DE (1) DE60018069D1 (tr)
EA (1) EA002864B1 (tr)
HK (1) HK1040956B (tr)
HU (1) HU222095B1 (tr)
IL (1) IL147299A0 (tr)
MA (1) MA25941A1 (tr)
NO (1) NO20016393L (tr)
NZ (1) NZ516291A (tr)
OA (1) OA12018A (tr)
PE (1) PE20010572A1 (tr)
PL (1) PL352487A1 (tr)
TR (1) TR200103839T2 (tr)
WO (1) WO2001002155A1 (tr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4261113B2 (ja) * 2001-06-19 2009-04-30 衡起 金 合成樹脂製チューブの製造装置およびその合成樹脂製チューブ
WO2003011564A1 (en) * 2001-08-01 2003-02-13 Lingxiu Xu An apparatus for producing corrugated covering duct in use for multi-optical cable
US20050011575A1 (en) * 2003-07-17 2005-01-20 Ingersoll-Rand Company Method of manufacturing flow connectors and product produced thereby
US20050012334A1 (en) * 2003-07-17 2005-01-20 Ingersoll-Rand Company Method of manufacturing flow connectors having overmolded inserts and product produced thereby
US20080286359A1 (en) 2004-05-24 2008-11-20 Richard John Dansereau Low Dosage Forms Of Risedronate Or Its Salts
US7645459B2 (en) 2004-05-24 2010-01-12 The Procter & Gamble Company Dosage forms of bisphosphonates
US20080287400A1 (en) 2004-05-24 2008-11-20 Richard John Dansereau Low Dosage Forms Of Risedronate Or Its Salts
US20070257399A1 (en) * 2005-10-07 2007-11-08 Jeremy Jay Lidgett Hose apparatus and method
US20080054236A1 (en) * 2006-08-31 2008-03-06 Morris David D Method of installing a conduit, innerduct, and cable
CN101512406A (zh) * 2006-08-31 2009-08-19 美利肯公司 安装导管、内导管和线缆的方法
KR100920476B1 (ko) * 2007-12-07 2009-10-08 전정자 다수의 내관을 갖는 합성수지제 튜브 및 그 제조 장치
US8377368B2 (en) * 2009-12-11 2013-02-19 Ti Automotive Technology Center Gmbh Component mounting arrangement
CN102363357B (zh) * 2011-11-04 2014-03-19 张子金 钢丝增强塑料管旋转定径装置
US9744710B2 (en) * 2012-01-13 2017-08-29 U.S. Farathane Corporation Assembly and process for creating an extruded pipe for use in a geothermal heat recovery operation
US9819160B2 (en) 2012-10-25 2017-11-14 Blue Diamond Industries, LLC Continuous conduit with pre-installed innerducts
KR101438931B1 (ko) * 2012-12-04 2014-09-11 현대자동차주식회사 소구경 콜게이트 튜브 제조장치 및 제조방법
DE102014226335A1 (de) 2014-12-17 2016-06-23 Leoni Kabel Holding Gmbh Verfahren zur Herstellung einer elektrischen Leitung, Werkzeugform für ein solches Verfahren und Leitung
US11002386B2 (en) * 2019-01-17 2021-05-11 Fmc Technologies, Inc. Low erosion fluid conduit with sharp section geometry
KR20210058442A (ko) 2019-11-14 2021-05-24 박문수 통신케이블용 나선형 철재보강 다중관과 그의 제조방법
US20250162231A1 (en) * 2023-11-21 2025-05-22 Dura-Line Llc Controlling cooling rate to avoid thermal welding of sheath and duct at higher speed
CN118700490B (zh) * 2024-07-17 2025-05-30 江苏乾锦塑业科技有限公司 一种mpp电缆保护管挤出后的冷却装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191550B (de) * 1959-03-13 1965-04-22 Heinz Faigle Verfahren zum Herstellen von Rippenrohren aus plastischem Werkstoff
US3629030A (en) * 1968-06-12 1971-12-21 Alvin G Ash Method for forming a mandrel and fabricating a duct thereabout
DE2731834A1 (de) * 1977-07-14 1979-01-25 Peter Irsch Kalibrierungsvorrichtung an strangpressen
JPS60247610A (ja) * 1984-05-23 1985-12-07 Sumitomo Electric Ind Ltd 無機フアイバ保護構造体
DE3739007A1 (de) * 1987-11-17 1989-05-24 Pma Elektro Ag Verfahren zur herstellung eines schutz- und verstaerkungsprofils und eine vorrichtung zur durchfuehrung dieses verfahrens
CA1328550C (en) * 1988-09-19 1994-04-19 Yoshinori Umezawa Method of fabricating pipe units
JP3189183B2 (ja) * 1991-08-12 2001-07-16 東洋化学株式会社 コルゲート管の製造装置
CA2072663C (en) * 1992-06-29 1999-11-16 Manfred A. A. Lupke Method and apparatus for forming a double walled thermoplastic tube with integral bells

Also Published As

Publication number Publication date
EP1198336B1 (en) 2005-02-09
AU4619000A (en) 2001-01-22
EP1198336A1 (en) 2002-04-24
CN1111116C (zh) 2003-06-11
US6676881B1 (en) 2004-01-13
OA12018A (en) 2006-04-19
HK1040956A1 (en) 2002-06-28
AP1304A (en) 2004-09-09
JP2003503243A (ja) 2003-01-28
HK1040956B (zh) 2004-03-05
PL352487A1 (en) 2003-08-25
MA25941A1 (fr) 2003-12-31
WO2001002155A1 (en) 2001-01-11
EA002864B1 (ru) 2002-10-31
DE60018069D1 (de) 2005-03-17
NZ516291A (en) 2003-10-31
ATE288823T1 (de) 2005-02-15
KR20010085750A (ko) 2001-09-07
HU222095B1 (hu) 2003-04-28
NO20016393L (no) 2002-02-28
KR100387196B1 (ko) 2003-06-18
BR0012187A (pt) 2002-04-30
IL147299A0 (en) 2002-08-14
NO20016393D0 (no) 2001-12-27
HUP0201697A2 (en) 2002-09-28
CZ20014621A3 (cs) 2002-10-16
AU761343B2 (en) 2003-06-05
BG106244A (bg) 2002-08-30
PE20010572A1 (es) 2001-05-14
AP2001002374A0 (en) 2001-12-31
CA2376262A1 (en) 2001-01-11
EA200200064A1 (ru) 2002-06-27
CN1313809A (zh) 2001-09-19

Similar Documents

Publication Publication Date Title
TR200103839T2 (tr) Çok kanallı boru hattı asamblajının imaline yönelik düzen.
BR8604416A (pt) Cabeca de extrusao
HUP9904276A2 (hu) Eljárás és berendezés több műanyagáram együttes extrudálására
EA200200594A1 (ru) Способ изготовления фигурных изделий
FR2861639B1 (fr) Ensemble de filiere d'extrudeuse de moulage pour pneumatique avec anneau conducteur oblique
DK1159122T3 (da) Termoplastrør
TR200103838T2 (tr) Kablolar için çok kanallı boru hattı asamblajı.
CN107107413A (zh) 用于制造电缆线的方法、用于这种方法的模具和缆线
NO20026069D0 (no) Fleksibelt rör med kapslet forspenningskabel
TR199700340A1 (tr) Tibbi boru uygulamalari için yönlendirici kaliptan çekme islemleri.
DE59610628D1 (de) Dichtungsanordnung
ATE326661T1 (de) Isoliertes verbundrohr
NO20025537D0 (no) Et fleksibelt rörsystem, samt metode for fremstilling og bruk av slikt system
SE8402345D0 (sv) Sett vid skarvning av cellplastisolerade ledningsror
CY1105682T1 (el) Εξαρτημα συναρμολογησεως δια συμπιεσεως δια σωληνες
ATE281922T1 (de) Ring-extruder-einzug
FR2827032B1 (fr) Embout pour conduite flexible sans voute de pression et son procede de fabrication
SA522432035B1 (ar) قناة تهوية مقاومة للحريق وتحسينات فيها
MY117834A (en) Method for manufacturing olefinic thermoplastic elastomer composition.
EA199900741A1 (ru) Способ получения эпросартана
EP1583705A4 (en) OPEN TUBE CLAMP WITH PLASTIC DEFORMABLE EAR AND MANUFACTURING METHOD THEREFOR
CA2155135A1 (en) Air rings for cooling blown plastic film
EA199900772A1 (ru) Способ селективного эпоксидирования для получения лекарственных соединений
SG135988A1 (en) Sectional molding system
BR0002494A (pt) Cabeça de bocal de extrusor