KR100356986B1 - Multi-layered vehicle fuel supply member and its manufacturing method - Google Patents

Multi-layered vehicle fuel supply member and its manufacturing method Download PDF

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Publication number
KR100356986B1
KR100356986B1 KR1019950002815A KR19950002815A KR100356986B1 KR 100356986 B1 KR100356986 B1 KR 100356986B1 KR 1019950002815 A KR1019950002815 A KR 1019950002815A KR 19950002815 A KR19950002815 A KR 19950002815A KR 100356986 B1 KR100356986 B1 KR 100356986B1
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KR
South Korea
Prior art keywords
fuel supply
supply member
thermoplastic material
vehicle fuel
layer
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KR1019950002815A
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Korean (ko)
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KR950031593A (en
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아틸리오달팔루
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에르곰 마테리 플라스티체 에쎄뻬아
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/243—Elbows
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/246—T-joints

Abstract

3가지 플라스틱 재료를 동시 압출하여 반제품을 형성하고, 금형의 벽에 대하여 압착되도록 그 반제품을 블로 성형하여 차량 연료 공급부재(1)를 형성하는 제조방법과; 플루오르화 중합체 재료(9), 제1 열가소성 재료(14), 및 플루오르화 중합체 재료(9)를 제1 열가소성 재료(14)에 화학적으로 결합시키기 위한 제2 열가소성 재료(16)로 형성된 골진 튜브(2)로 이루어진 차량 연료 공급부재(1)에 관한 것이다.A method for producing a vehicle fuel supply member (1) by simultaneously extruding three plastic materials to form a semifinished product, and blow molding the semifinished product to be pressed against the wall of the mold; Corrugated tube formed of a fluorinated polymer material 9, a first thermoplastic material 14, and a second thermoplastic material 16 for chemically bonding the fluorinated polymer material 9 to the first thermoplastic material 14 ( It relates to a vehicle fuel supply member (1) consisting of 2).

Description

다층의 차량 연료 공급부재 및 그의 제조방법Multi-layered vehicle fuel supply member and manufacturing method thereof

본 발명은 다층 구조의 차량 연료 공급부재 및 그의 제조방법에 관한 것이다.The present invention relates to a vehicle fuel supply member having a multilayer structure and a method of manufacturing the same.

공지의 차량 연료 공급부재는 탄화수소 증발에 견디는 플루오르화(fluorinated) 중합체 재료로 된 하나의 내부 층과 내(耐)화학성 중합체 재료로 된 하나 이상의 외부 층을 포함하는 다층 튜브로 이루어져 있다.Known vehicle fuel supply members consist of a multilayer tube comprising one inner layer of fluorinated polymeric material that resists hydrocarbon evaporation and one or more outer layers of chemically resistant polymeric material.

그러한 연료 공급부재를 제조하기 위한 몇몇 공지의 방법은 상이한 재료로 된 층들 사이에 에폭시 또는 우레탄과 같은 접착제를 이용하는 것을 포함하고, 다른 공지의 방법은 플루오르화 중합체 재료로 된 내부 층의 표면을 이온화 가스 처리에 의해 활성화하여 그 내부 층의 표면 특성을 변경시키는 것을 포함한다.Some known methods for producing such fuel supply members include the use of an adhesive such as epoxy or urethane between layers of different materials, and other known methods involve ionizing gas on the surface of an inner layer of fluorinated polymer material. Activation by treatment to alter the surface properties of its inner layer.

공지의 연료 공급부재 및 그의 제조방법은, 상이한 재료로 된 층들을 확고하게 접착하는데 있어서의 어려움에 기인한 높은 처리비용 및 복잡성을 포함한 여러가지 단점을 가진다.Known fuel supply members and methods for their manufacture have several disadvantages, including high processing costs and complexity due to difficulties in firmly bonding layers of different materials.

본 발명의 목적은, 공지의 연료 공급부재와 관련된 상기한 단점들을 극복하도록 설계된 차량 연료 공급부재 및 그의 제조방법을 제공하는데 있다.It is an object of the present invention to provide a vehicle fuel supply member and a method of manufacturing the same, which are designed to overcome the above disadvantages associated with known fuel supply members.

본 발명에 따르면, 플루오르화 중합체 재료로 된 내부 층과 열가소성 재료로 된 외부 층을 포함하고 골(corrugation)들을 가지는 튜브로 이루어진 것을 특징으로 하는 차량 연료 공급부재가 제공된다.According to the present invention, there is provided a vehicle fuel supply member comprising an inner layer made of a fluorinated polymer material and a tube having corrugations and comprising an outer layer made of a thermoplastic material.

이하, 첨부된 도면에 의거하여 본 발명의 바람직한 실시예에 대하여 설명한다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

제 1 도에서, 부호 1은 제1 단부 슬리브(3)와 제2 단부 슬리브(4) 사이에서 길이방향으로 연장하는 가요성의 골진(corrugated) 튜브(2)를 포함하는 차량 연료 공급부재를 나타낸다.In FIG. 1, reference numeral 1 denotes a vehicle fuel supply member comprising a flexible corrugated tube 2 extending longitudinally between the first end sleeve 3 and the second end sleeve 4.

제1 단부 슬리브(3)와 제2 단부 슬리브(4)는 공지의 연결수단(간략화를 위해 도시되지 않음)에 의해 탱크(도시되지 않음)와 외부 급유기(도시되지 않음)에 각각 연결된다.The first end sleeve 3 and the second end sleeve 4 are respectively connected to a tank (not shown) and an external oiler (not shown) by known connecting means (not shown for simplicity).

제 2 도에 도시된 바와 같이, 튜브(2)에는, 그 튜브를 이루는 원통형의 벽(7)을 파형으로 성형함으로써 형성된 다수의 골(6)이 튜브의 전체 길이를 따라 제공되어 있다. 그 골(6)들은 서로 연결된 상이한 직경의 2개의 원형 단면부들이 튜브의 길이방향으로 규칙적으로 번갈아 배열되어 이루어져 있고, 그 상이한 직경의 2개의 원형 단면부들 중 큰 직경의 원형 단면부가 제 3 도에 도시되어 있다.As shown in FIG. 2, the tube 2 is provided with a plurality of valleys 6 formed along the entire length of the tube, formed by shaping the cylindrical wall 7 constituting the tube into a waveform. The valleys 6 are formed by alternately arranging two circular cross-sections of different diameters connected to each other in the longitudinal direction of the tube, and of the two circular cross-sections of the different diameters having a larger diameter circular cross-section in FIG. 3. Is shown.

벽(7)은, 에틸렌 테트라플루오로에틸렌계의 플루오르화 중합체 재료(9)로 된 내부 층(8)과, 열가소성 재료로 된 외부 층(10)으로 이루어져 있다. 더 구체적으로는, 그 외부 층(10)은 나일론 12계의 제1 열가소성 재료(14)로 된 제1 층(13)과, 나일론 6계의 제2 열가소성 재료(16)로 된 제2 층(15)으로 이루어져 있다. 제1 층(13)은 제2 층(15)의 외측에 위치되고, 제2 층(15)은 내부 층(8)의 외측에 배치되어 있다. 따라서, 제2 열가소성 재료(16)는 반경방향으로 중간 위치에 위치되고, 플루오르화 중합체 재료(9) 및 제1 열가소성 재료(14) 모두와 화학 결합(chemical bond)을 형성하여, 내부 층(8)과 제1 층(13)과 제2 층(15)이 서로 일체로 되고 서로 확고하게 부착되어 있다.The wall 7 consists of an inner layer 8 of ethylene tetrafluoroethylene-based fluorinated polymer material 9 and an outer layer 10 of thermoplastic material. More specifically, the outer layer 10 has a first layer 13 made of nylon 12 based first thermoplastic material 14 and a second layer made of nylon 6 based second thermoplastic material 16). 15). The first layer 13 is located outside of the second layer 15, and the second layer 15 is arranged outside of the inner layer 8. Accordingly, the second thermoplastic material 16 is located at an intermediate position in the radial direction and forms a chemical bond with both the fluorinated polymer material 9 and the first thermoplastic material 14, thereby forming the inner layer 8. ) And the first layer 13 and the second layer 15 are integral with each other and firmly attached to each other.

플루오르화 중합체 재료(9)에는 카본블랙 입자들로 된 충전제(filler)가 제공되어, 정전하(靜電荷)를 접지로 방출시키는 통로를 형성하는 적어도 하나의 전기 전도성 부분(17)(제 3도)이 내부 층(8)에 제공되도록 하고 있다.The fluorinated polymer material 9 is provided with a filler of carbon black particles, thereby forming at least one electrically conductive portion 17 (FIG. 3) which forms a passageway for releasing the electrostatic charge to ground. ) Is provided to the inner layer (8).

연료 공급부재(1)를 제조하기 위한 본 발명에 따른 방법은 하기의 제1 단계와 제2 단계를 포함한다. 제1 단계는, 카본블랙 입자를 함유하는 플루오르화 중합체 재료(9)와 제1 및 제2 열가소성 재료(14, 16)를 단일의 압출 헤드로부터 연속적으로 압출하여 중공(中空)의 반제품(半製品)을 형성하는 것이고, 제2 단계는, 연료 공급부재(1)의 외측 면에 상보적인 형상을 가지는 골진 금형 안에서, 상기 반제품이 상기 금형의 내측 벽에 대하여 압착되어 그 내측 벽의 형상을 취하도록 그 반제품 내에 압축 공기를 불어넣음으로써 그 반제품을 블로 성형(blow molding)하는 것이다.The method according to the invention for producing the fuel supply member 1 comprises the following first and second steps. The first step is a hollow semi-finished product by continuously extruding the fluorinated polymer material 9 containing carbon black particles and the first and second thermoplastic materials 14, 16 from a single extrusion head. In the corrugated mold having a shape complementary to the outer surface of the fuel supply member 1, wherein the semi-finished product is pressed against the inner wall of the mold to take the shape of the inner wall. Blow molding of the semifinished product is performed by blowing compressed air into the semifinished product.

실제 사용 시, 플루오르화 중합체 재료는 탄화수소에 대한 양호한 불투과성을 보장하고, 열가소성 재료는 화학제로부터 연료 공급부재를 보호하며, 골들은 연료 공급부재에 적절한 가요성을 제공하는 동시에, 그 연료 공급부재의 벽을 형성하는 내부 층과 외부 층의 접착을 추가로 보장한다.In practical use, the fluorinated polymer material ensures good impermeability to hydrocarbons, the thermoplastic material protects the fuel supply from chemicals, and the valleys provide adequate flexibility to the fuel supply, while at the same time It further ensures the adhesion of the inner and outer layers to form the walls.

본 발명의 이점(利點)들이 상기 설명으로부터 명백할 것이다. 매우 간단하고 경제적인 점에 추가하여, 본 발명에 따른 방법은, 적절한 기계적 특성과 탄화수소 증발 및 화학제에 대한 충분한 저항성을 가지는 차량 연료 공급부재를 제조할 수 있게 하고, 이러한 바람직한 결과는, 기계적(튜브의 골들에 의해) 및 화학적(반응성 중합체 재료로 된 중간층에 의해)으로 서로 견고하게 결합된 플루오르화 중합체 재료와 열가소성 재료를 사용함으로써 달성된다. 또한, 전기전도성 부분은, 알려진 바와 같이, 스파크 발생을 방지한다. 즉, 그 전기전도성 부분은 상기한 플라스틱 재료들에 의해 제공되는 이점들을 안전하게 활용할 수 있게 한다.Advantages of the present invention will be apparent from the above description. In addition to being very simple and economical, the method according to the invention makes it possible to produce a vehicle fuel supply member having suitable mechanical properties and sufficient resistance to hydrocarbon evaporation and chemicals, and such a preferred result is that By using the fluorinated polymer material and the thermoplastic material firmly bonded to each other by the valleys of the tube) and chemically (by the intermediate layer of the reactive polymer material). In addition, the electrically conductive portion, as known, prevents sparking. That is, the electrically conductive portion makes it possible to safely take advantage of the advantages provided by the plastic materials described above.

본 발명의 범위로부터 벗어남이 없이, 앞에 설명되고 예시된 바와 같은 연료공급부재 및 그의 제조방법에 대하여 여러 가지 변경이 행해질 수 있음은 명백하다.It is apparent that various modifications can be made to the fuel supply member and its manufacturing method as described and illustrated above without departing from the scope of the invention.

특히, 연료 공급부재를 형성하는 층의 수는 튜브에 요구되는 사용 특성에 따라 변경될 수 있고, 정전하를 제거하기 위한 전기전도성 통로는, 예를 들어, 전도성 분말 또는 페인트 또는 금속판을 이용하는 것과 같은 공지의 방법에 의해 형성될 수도 있다.In particular, the number of layers forming the fuel supply member may vary depending on the required use characteristics of the tube, and the electrically conductive passageway for removing the electrostatic charge may be, for example, using conductive powder or paint or metal plate. It may be formed by a known method.

제 1 도는 본 발명에 따른 차량 연료 공급부재의 측면도.1 is a side view of a vehicle fuel supply member according to the present invention.

제 2 도는 제 1 도의 선 II-II에 따른 단면도.FIG. 2 is a sectional view along line II-II of FIG.

제 3 도는 제 1 도의 선 III-III에 따른 단면도.3 shows a section according to line III-III of FIG. 1.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1: 차량 연료 공급부재 2: 튜브 3: 제1 단부 슬리브1: vehicle fuel supply member 2: tube 3: first end sleeve

4: 제2 단부 슬리브 6: 골 7: 벽4: second end sleeve 6: valley 7: wall

8: 내부 층 10: 외부 층 13: 제1 층8: inner layer 10: outer layer 13: first layer

15: 제2 층 17: 전기전도성 부분15: second layer 17: electrically conductive portion

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Claims (6)

플루오르화 중합체 재료(9)로 된 내부 층(8)과 열가소성 재료로 된 외부 층(10)을 포함하고 골(6)들을 가지는 튜브(2)로 이루어진 것을 특징으로 하는 차량 연료 공급부재.A vehicle fuel supply member, characterized in that it comprises an inner layer (8) of fluorinated polymer material (9) and an outer layer (10) of thermoplastic material and a tube (2) having valleys (6). 제 1 항에 있어서, 상기 외부 층(10)이, 제1 열가소성 재료(14)로 된 제1 층(13)과, 상기 내부 층(8)과 상기 제1 층(13) 사이에 배치되고 제2 열가소성 재료(16)로 된 제2 층(15)을 포함하고,2. The outer layer (10) according to claim 1, wherein the outer layer (10) is disposed between a first layer (13) made of a first thermoplastic material (14) and between the inner layer (8) and the first layer (13). A second layer 15 of two thermoplastic materials 16, 상기 제2 열가소성 재료(16)가 상기 플루오르화 중합체 재료(9) 및 상기 제1 열가소성 재료(14)와 화학 결합을 형성하는 것을 특징으로 하는 차량 연료 공급부재.And the second thermoplastic material (16) forms a chemical bond with the fluorinated polymer material (9) and the first thermoplastic material (14). 제 1 항 도는 제 2 항에 있어서, 상기 내부 층(8)이 정전하를 제거하기 위한 적어도 하나의 전기전도성 부분(17)을 포함하는 것을 특징으로 하는 차량 연료 공급부재.3. The vehicle fuel supply member according to claim 1, wherein the inner layer (8) comprises at least one electrically conductive portion (17) for removing electrostatic charges. 4. 제 2 항에 있어서, 상기 플루오르화 중합체 재료(9)가 에틸렌 테트라플루오로에틸렌이고, 상기 제1 열가소성 재료(14)가 나일론 12이며, 상기 제2 열가소성 재료(16)가 나일론 6인 것을 특징으로 하는 차량 연료 공급부재.3. The fluoropolymer material (9) according to claim 2, characterized in that the fluorinated polymer material (9) is ethylene tetrafluoroethylene, the first thermoplastic material (14) is nylon 12, and the second thermoplastic material (16) is nylon 6. Vehicle fuel supply member. 차량 연료 공급부재를 제조하는 방법으로서,As a method of manufacturing a vehicle fuel supply member, 플루오르화 중합체 재료와 열가소성 재료를 압출 헤드로부터 압출하여 반제품을 형성하는 제1 단계와,A first step of extruding the fluorinated polymer material and the thermoplastic material from the extrusion head to form a semifinished product, 연료 공급부재의 외측 면에 상보적인 형상을 가지는 금형의 내측 벽에 대하여On the inner wall of the mold having a shape complementary to the outer side of the fuel supply member 상기 반제품을 블로 성형(blow molding)하는 제2 단계를 포함하는 것을 특징으로 하는 차량 연료 공급부재의 제조방법.And a second step of blow molding the semi-finished product. 제 5 항에 있어서, 상기 열가소성 재료가 제1 열가소성 재료와 제2 열가소성 재료를 포함하는 것을 특징으로 하는 차량 연료 공급부재의 제조방법.6. The method of manufacturing a vehicle fuel supply member according to claim 5, wherein the thermoplastic material comprises a first thermoplastic material and a second thermoplastic material.
KR1019950002815A 1994-02-15 1995-02-15 Multi-layered vehicle fuel supply member and its manufacturing method KR100356986B1 (en)

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IT94TO000085A IT1267383B1 (en) 1994-02-15 1994-02-15 MULTILAYER BODY FOR FUEL ADDITION OF A VEHICLE AND PROCEDURE FOR ITS REALIZATION.
ITTO94A000085 1994-02-15

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KR101269846B1 (en) 2011-05-09 2013-06-07 주식회사평화발레오 Reservoir hose for supply of the clutch oil

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GB2311114B (en) * 1996-03-15 1999-04-28 T & N Technology Ltd Convoluted flexible protective sleeves
US5778942A (en) * 1996-07-01 1998-07-14 Stanley Aviation Corporation Vehicle including freeze stress resistant fluid conducting apparatuses
FR2754873B1 (en) * 1996-10-23 1999-01-15 Peugeot CABLE PASSING SLEEVE FOR A MOTOR VEHICLE AND METHOD FOR MOUNTING SAME
JP2000274562A (en) * 1999-03-24 2000-10-03 Tokai Rubber Ind Ltd Laminated corrugated tube

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DE3910770C2 (en) * 1989-04-04 1995-02-16 Alkor Gmbh Process for the production of extruded or blow-molded single or multi-layer plastic films, profiles, objects or hollow bodies
IT1245524B (en) * 1991-05-03 1994-09-29 Italiana Serrature Torino FUEL SUPPLY SYSTEM FOR MOTOR VEHICLES

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KR101269846B1 (en) 2011-05-09 2013-06-07 주식회사평화발레오 Reservoir hose for supply of the clutch oil

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