KR101763831B1 - Wire Rope Having Transparent and Fluorescent Portions - Google Patents

Wire Rope Having Transparent and Fluorescent Portions Download PDF

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Publication number
KR101763831B1
KR101763831B1 KR1020150108792A KR20150108792A KR101763831B1 KR 101763831 B1 KR101763831 B1 KR 101763831B1 KR 1020150108792 A KR1020150108792 A KR 1020150108792A KR 20150108792 A KR20150108792 A KR 20150108792A KR 101763831 B1 KR101763831 B1 KR 101763831B1
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South Korea
Prior art keywords
wire rope
fluorescent
transparent protective
protective member
wire
Prior art date
Application number
KR1020150108792A
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Korean (ko)
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KR20170014839A (en
Inventor
엄갑식
Original Assignee
대광기업 주식회사
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Priority to KR1020150108792A priority Critical patent/KR101763831B1/en
Publication of KR20170014839A publication Critical patent/KR20170014839A/en
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Publication of KR101763831B1 publication Critical patent/KR101763831B1/en

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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/005—Composite ropes, i.e. ropes built-up from fibrous or filamentary material and metal wires
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/148—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising marks or luminous elements
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B9/00—Binding or sealing ends, e.g. to prevent unravelling
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • D07B2201/2094—Jackets or coverings characterised by the materials used being luminescent or reflective
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/306—Aluminium (Al)

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  • Ropes Or Cables (AREA)

Abstract

The present invention provides a wire rope. The present invention relates to a metal reinforcing material for an aluminum ferrule formed by strongly pressing a wire rope main wire 110 used for lifting a heavy object, a wire rope end 120, and the wire rope main wire 110 and the wire rope end 120, The wire rope main body 110 and the wire rope end 120 existing outside the metal reinforcement member 130 are formed of a transparent synthetic resin material that can be observed from the outside, A transparent protective member 140 made of a transparent material; A fluorescent processing portion 150 formed by covering the outer surface of the transparent protective member 140 with a fluorescent material or forming a body of the transparent protective member 140 with a fluorescent synthetic resin, ; .

Description

Wire Rope Having Transparent and Fluorescent Portions}

The present invention relates to a wire rope capable of daytime identification and nighttime identification, more specifically, it can identify the end of a joint portion of a wire rope during the daytime, and when a wire rope operation is performed at night or in a dark place, RTI ID = 0.0 > fluorescent wire rope. ≪ / RTI >

In general, wire ropes are mainly used for lifting heavy loads, for transporting heavy loads from one point to another, for transporting heavy loads to a carrier, or for unloading from a carrier.

Typical applications of wire ropes include mechanical equipment including hoists, construction equipment using cranes, loading docks for vessels, fishing areas used for small and medium fishing boats, aerial cables, steel hangers used for large bridges, An elevator product which is vertically ascending and descending can be exemplified.

Since the wire rope is mainly used to carry heavy heavy goods, in the case of the wire rope sling, the main wire of the wire rope and the end of the wire rope are superimposed on each other and the main wire and its end are pressed by the aluminum ferrule, In the case of the wire rope grommet, the main wire and its end are pressed by an aluminum ferrule to form a closed endless track of the wire rope.

The performance of the wire rope is determined by whether or not the end of the wire rope is sufficiently pressed by the aluminum ferrule when the main wire and the end of the wire rope are squeezed. Therefore, whether or not the end of the wire rope protrudes outwardly from the aluminum ferrule It is very important to check with the naked eye.

However, in most wire rope products today, in order to eliminate the step between the aluminum ferrule and the wire rope main line, a reinforcing member made of a synthetic resin material having an inclined surface is formed, or an aluminum reinforcing member having an inclined surface is formed . At this time, the reinforcement member made of the synthetic resin material and the reinforcing member made of aluminum include the end of the wire rope in the inside thereof, so that the user or the operator can check whether the wire rope end is sufficiently protruded to the outside of the aluminum ferrule It can not be confirmed whether or not it is.

In addition, the wire rope is mainly used in the outdoor environment rather than being used indoors in its function, and the workplace is used in a place where it is exposed to the natural environment outdoors. In case of the nature of the work, . When working with a wire rope, it is not a problem because it can easily distinguish the presence of a wire rope during the daytime, but it is necessary to perform the work at night or to work in the rainy and snowy weather In this case, the wire rope is not well known to workers, which is a problem.

Korean Utility Model Registration No. 20-264547 "Light-roughened wire rope" (2002. 2. 1.); Korean Patent No. 10-937494 "Luminous wire rope and its manufacturing method" (Jan. 11, 2010); Korean Utility Model Registration No. 20-134595 "Fluorescent plastic wire rope" (1998. 10. 27.); Korean Patent No. 10-854654 "Wire rope sling, apparatus and method for manufacturing thereof" (2008. 8. 21); Korean Patent No. 10-937494 "Luminous wire rope and its manufacturing method" (Jan. 11, 2010); Korean Patent No. 10-961995 "Method of manufacturing wire rope slings" (May 31, 2010); Korean Patent No. 10-961999 "Wire rope slings and manufacturing method thereof" (May 31, 2010).

SUMMARY OF THE INVENTION The present invention has been made in order to solve all of the problems of the prior art, and it is an object of the present invention to provide a method and apparatus for easily checking whether a wire rope is sufficiently protruded to the outside of an aluminum ferrule, And to provide a wire rope that allows workers to identify them safely when working at night or in the dark with wire rope operations.

In order to achieve the above-mentioned object, the present invention provides a wire rope main line used for lifting a heavy object, a wire rope end connected to the wire rope main line and having one end thereof overlapped with the wire rope main line, Wherein the wire rope main wire and the wire rope end of the wire rope main wire and the wire rope end are overlapped with each other, A transparent protective member formed of a transparent synthetic resin material capable of observing the end of the wire rope from the outside; A fluorescent processing portion formed adjacent to the transparent protective member or formed on the outer surface of the transparent protective member by coating with a fluorescent material or molding with a fluorescent synthetic resin; And a fluorescent wire rope.

In the present invention, the fluorescence-treated portion may be formed into one or two or more strips, and may be formed into one or two or more pieces, and the one or two or more strip shapes and the one or more Or may be formed by combining pieces.

The wire rope according to the present invention has an advantage that the user or operator can easily confirm whether or not the end of the wire rope protrudes sufficiently from the aluminum end during the daytime.

In addition, since the wire rope according to the present invention can easily grasp the position of the wire rope by the fluorescent material when working at night or in a dark place, there is an advantage that night work can be safely performed.

Further, since the wire rope according to the present invention is partially used without using the fluorescent material as a whole but can be safely performed at night, there is an advantage that the use amount of the fluorescent material can be saved.

Fig. 1 is a schematic diagram of a wire rope according to the present invention,
Fig. 2 is another schematic conceptual view of the wire rope according to the present invention, which relates to each embodiment in a state in which the fluorescent processing portion is manufactured in a band shape,
Fig. 3 is another schematic conceptual view of the wire rope according to the present invention, and relates to an embodiment showing a state in which a fluorescent-processed portion is manufactured into a piece shape.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the accompanying drawings are only for explaining the technical idea of the present invention in detail and that the technical idea of the present invention is not limited thereto and that various modifications are possible. In the specification of the present invention, the same reference numerals are used for the same parts, and parts that can be easily created by those having ordinary skill in the art are omitted in the description of the present invention. .

Fig. 1 is a schematic diagram of a wire rope 100 according to the present invention.

The fluorescent wire rope 100 according to the present invention includes a wire rope main wire 110 used to lift a heavy object. The wire rope main wire 110 is formed by twisting finely twisted wires into strands and twisting the strands again. The wire rope main wire 110 is used to lift or move the heavy wire, and the wire rope main wire 110 may be formed into a ring shape or an endless shape. Since these matters are typical, a detailed description thereof will be omitted.

The fluorescent wire rope 100 according to the present invention includes a wire rope end 120 formed at one end of the wire rope main wire 110 in a state of overlapping with the wire rope main wire 110. The wire rope end 120 is connected to the wire rope main wire 110 and overlaps the wire rope main wire 110 in a superimposed state.

The fluorescent wire rope 100 according to the present invention includes a metal reinforcing member 130 formed by strongly pressing an overlap portion where the wire rope main wire 110 and the wire rope end 120 overlap each other. The metal reinforcement member 130 is typically formed of an aluminum ferrule, and the wire rope main wire 110 and the wire rope end 120 are strongly pressed in the overlapping portion.

The fluorescent wire rope 100 according to the present invention completely covers the wire rope main wire 110 and the rope end 120 at the outer side of the metal reinforcement member 130 and is formed of a transparent protective member 140 formed of a transparent material, .

The transparent protective member 140 protects the wire rope main line 110 and the rope end 120 existing in the transparent protective member 140 and protects the end 120 of the rope from the metal reinforcement member 130 It allows the user to visually confirm whether or not they are protruding sufficiently. Therefore, it is important that the transparent protective member 140 is formed at a portion where the end 120 of the rope can be observed from the outside.

The transparent protective member 140 is not particularly limited as long as the transparent protective member 140 is a transparent material, and can be formed by a molding method. The molding method may be carried out by injection molding or by molding in the form of a transparent synthetic resin. When the transparent synthetic resin is a thermoplastic synthetic resin, it is preferable to use a simple extruder which is made by simply modifying an injection molding machine or an injection molding machine. However, in the case of a thermosetting synthetic resin such as urethane or a silicone, desirable. The above-mentioned casting machine may be exemplified by a molding apparatus introduced in Patent Registration No. 10-961997 developed by the inventor of the present invention and obtained a patent right.

The fluorescent wire rope 100 according to the present invention may be formed by directly covering the transparent protective member 140 with a fluorescent material on the outer surface of the transparent protective member 140, And a fluorescence processing portion 150 formed by molding with a fluorescent synthetic resin.

The fluorescence processing part 150 functions to easily inform the operator of the position where the wire rope exists when the work is performed at night or in a dark place.

The fluorescent treated portion 150 of the wire rope may be formed immediately adjacent to the transparent protective member 140 or may be formed by covering the outer surface of the transparent protective member 140 with a fluorescent material or molding with a fluorescent synthetic resin . The fluorescent material is a substance that absorbs the energy of light when it receives light at night or in a dark place, and makes the energy obtained by the light appear bright when the light disappears. Such a fluorescent material is also commonly referred to as a glitter pigment or a phosphorescent pigment. The fluorescent material should not contain a radioactive substance or heavy metal, and is harmless to human body. It is preferable that the fluorescent substance has high luminous property when it absorbs and stores light, and can be used hemispherically.

The fluorescent synthetic resin preferably includes 100 parts by weight of the synthetic resin material and 3.0 to 25.0 parts by weight of the fluorescent material with respect to 100 parts by weight of the synthetic resin material. When the fluorescent material is contained in an amount of 3.0 parts by weight or less, it is difficult to exhibit fluorescence performance at night. When the fluorescent material is contained in an amount of 25.0 parts by weight or more, it is preferable from the viewpoint of fluorescence performance, but it is undesirable because it may weaken the physical properties of the fluorescent synthetic resin layer.

Preferably, the fluorescent synthetic resin further comprises 0.5 to 10 parts by weight of pigment relative to 100 parts by weight of the synthetic resin raw material. If pigments are included, colors can be added, which can help workers identify wire ropes in the daytime as well as at night.

The fluorescent treated portion 150 of the wire rope is preferably formed after the transparent protective member 140 is formed.

The present invention is a preferred embodiment, and the fluorescence treatment portion 150 may be formed of one or two or more strip shapes 152. The fluorescence treatment part 150 is formed at a portion of the wire rope end 120 that is not covered by the outside and can be formed as long as the transparent protective member 140 is formed on the wire rope end 120. have.

Fig. 2 is another schematic conceptual view of the wire rope 100 according to the present invention, illustrating each embodiment in a state in which the fluorescent processing portion 150 is formed into a strip shape 152. Fig.

In the present invention, when the fluorescent processing portion 150 is formed into a strip shape 152, one or more than two portions are formed at portions where the wire rope ends 120 are not covered from the outside. The fluorescence-treated portion 150 may be formed by coating with a fluorescent material, injection molding using a fluorescent synthetic resin, or cast molding.

2A shows a case where a transparent protective member 140 is formed adjacent to a metal fitting 130 and then a fluorescent processing portion 150 is formed of two strip shapes 152 and a transparent protective member 142 therebetween .

Figure 2b illustrates a wire rope sling product in which a fluorescent treated portion of a strip shape 152 is formed immediately adjacent to a metal fitting 130 in a sloped form and a transparent protective member 140 is formed adjacent thereto, And a fluorescent portion of the strip shape 152 is formed again.

2C shows a wire rope sling product in which a fluorescent treated portion of the strip shape 152 including the periphery of the metal fitting 130 is formed and the transparent protective member 140 is formed in a flat state adjacent thereto, And then the fluorescent treated portion of the strip shape 152 is formed in an inclined manner.

FIG. 2D is a wire rope grommet product in which three fluorescent processing portions of a strip shape 152 are formed adjacent to a metal fitting 130 and the transparent protective member 140 is formed therebetween. And an inclined shape is formed.

In another preferred embodiment of the present invention, the fluorescence treatment portion 150 may be formed of one or more piece shapes 155, and the one or more band shapes 152 and the one or two Or may be formed by combining the piece shapes 155 described above.

In the present invention, when the engraved shape 155 is formed, it is preferable that the engraved shape 155 is formed in any one of the group consisting of a triangular shape, a rectangular shape, an elliptical shape, a circular shape, and an amorphous shape. In the case of forming the piece 155 in the body of the transparent protective member 140, the transparent protective member 140 may be formed into a shape suitable for the piece shape It is preferable to form an appropriate groove. However, if it is not formed in advance in the process of injection molding or casting, it is possible to form the circular groove into a suitable shape by using a cutting knife or by using a drill to form a circular groove.

3 is a schematic diagram of another schematic view of the wire rope 100 according to the present invention in which the fluorescent processing portion 150 is formed into a piece 155 and the band 152 is formed in the piece shape 155 are combined with each other.

3A shows a case where the transparent protective member 140 is formed adjacent to the metal fitting 130 and then the fluorescent processing portion 150 is formed into a plurality of pieces 155 on the outer side of the transparent protective member 140 . The plurality of engraved features 155 may be formed on the outer surface of the transparent protective member 140 by being printed, applied, or sprayed with fluorescent ink, or may be formed by molding with a fluorescent synthetic resin have. In addition, the engraved shape 155 is preferably formed in any one of the group consisting of a triangular shape, a rectangular shape, an elliptical shape, a circular shape, and an amorphous shape.

3B illustrates an example in which a fluorescent processing portion of a strip shape 152 is formed adjacent to a metal fitting 130 and then a transparent protective member 140 is formed and then formed into a plurality of engraved shapes 155 . Even in this case, it is possible to visually check whether the rope end 120 protrudes outwardly of the metal fitting 130 with the naked eye during the day, and the position of the wire rope can be easily identified by the fluorescent work at night You can.

3C shows a case where a fluorescent processing portion of the strip shape 152 is formed adjacent to the metal fitting 130 and then a transparent protective member 140 is formed and then a plurality of engraved shapes 155 are formed in a circular shape .

FIG. 3D shows an example in which a fluorescent processing portion of a strip shape 152 is formed adjacent to a metal fitting 130, then a transparent protective member 140 is formed, and then a plurality of engraved features 155 are formed And shows a state in which a single inclined surface is formed as a whole.

Figure 3e illustrates a wire rope sling product 140 that surrounds the metal fitting 130 with a fluorescent treated portion of strip shape 152 and then forms a transparent protective member 140 and then forms a plurality of piece shapes 155. [ .

3F illustrates a wire rope grommet product in which a fluorescent treated portion of the strip shape 152 is formed adjacent to the metal fitting 130 and then a transparent protective member 140 is formed and then a plurality of engraved shapes 155) are formed in the same manner as in the first embodiment. At this time, the fluorescence processed portion of the strip shape 152 and the plurality of the engraved shapes 155 exemplify the case where the inclined shape as a whole is formed.

The present invention also provides a method for manufacturing a fluorescent wire rope 100.

A method of manufacturing a fluorescent wire rope according to the present invention includes preparing a wire rope, a metal reinforcement member, a fluorescent material, various instruments and equipment necessary for performing a job, preparing and drying the wire rope (S 210) .

The present invention prepares a wire rope and a metal reinforcement member necessary for moving or transporting a heavy object, and they are cleaned and dried. In addition, various fluorescent materials, synthetic resin, and related equipment necessary for this process are prepared.

A method of manufacturing a fluorescent wire rope according to the present invention is a method of manufacturing a fluorescent wire rope comprising the steps of forming a metal reinforcement member 130 formed of an aluminum ferrule on an overlapping portion where a main wire 110 of a wire rope and an end 120 of a wire rope are overlapped with each other And forming a metal reinforcing member (S 220).

The metal reinforcing member 130 is formed by pressing the wire reinforcement member 130 on the overlapping portion where the main wire 110 of the wire rope and the end portion 120 of the wire rope are overlapped with each other.

A method of manufacturing a fluorescent wire rope according to the present invention includes the steps of forming a transparent protective member (140) made of a transparent material around a wire rope end (120) existing outside the metal reinforcement member (130) (S 230).

The present invention confirms whether or not the end 120 of the wire rope located inside thereof visually protrudes to the outside of the metal reinforcing member 130 sufficiently through the transparent protective member 140, have. Therefore, it is preferable to form the periphery of the end 120 of the wire rope by injection molding or cast molding. Since the injection molding method and the casting molding method have already been described above, the detailed description will be omitted.

The transparent protective member 140 may be formed on the outer surface of the transparent protective member 140 such that the band 152 or the engraved 155 may be formed in advance as the fluorescent portion 150. [ .

The method of manufacturing a fluorescent wire rope according to the present invention is characterized in that a fluorescent processing portion 150 adjacent to the transparent protective member 140 or treated with a fluorescent substance is formed on the outer surface or the body of the transparent protective member 140 And a forming step (S 240) of the fluorescence treatment portion.

The formation step (S 240) of the fluorescence-treated portion may be embodied by covering the surface of the already formed transparent protective member 140 with a fluorescent substance or by molding a fluorescent synthetic resin to complete the fluorescence-treated portion 150. When the fluorescent substance is coated on the outer surface of the transparent protective member 140, it can be formed by printing with a fluorescent material, spraying a fluorescent substance, or attaching a fluorescent tape.

When the transparent protective member 140 is formed by molding a fluorescent synthetic resin on the body of the transparent protective member 140, holes or slits (not shown) are formed at a predetermined depth in the body during the molding operation of the transparent protective member 140, Or the like, and then molding the fluorescent synthetic resin into the hole or slit.

While the present invention has been particularly shown and described with reference to the preferred embodiments thereof, it should be understood that the present invention is not limited thereto. The range is determined and limited.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

100: Fluorescent wire rope (present invention)
110: main wire of wire rope, 120: end of wire rope,
130: metal reinforcing member, 140: transparent protective member,
150: a fluorescence treatment part, 152: a band shape (fluorescence treatment part)
155: piece shape (fluorescence treatment portion)

Claims (5)

A wire rope end 120 connected to the wire rope main wire 110 and having one end thereof overlapped with the wire rope main wire 110, A metal reinforcing member 130 of an aluminum ferrule formed by strongly pressing an overlapping portion where the wire rope main wire 110 and the wire rope end 120 overlap each other,
A transparent protective member 140 formed of a transparent synthetic resin material which can be observed from the outside of the wire rope main wire 110 and the wire rope end 120 existing outside the metal reinforcement member 130;
A fluorescence treatment portion 150 adjacent to the transparent protective member 140; Lt; / RTI >
Wherein the fluorescent processing portion 150 is formed in one or two or more strip shapes 152 when the outer surface of the adjacent body of the transparent protective member 140 is coated with a fluorescent material. Fluorescent wire rope (100).
delete The method according to claim 1,
When the fluorescent processing portion 150 is formed by molding with a fluorescent synthetic resin on the adjacent body of the transparent protective member 140, it is formed into one or more pieces 155,
Wherein the piece shape (155) is any one of the group consisting of a triangle, a quadrangle, an ellipse, a circle, and an amorphous shape.
delete Preparing a wire rope, a metal reinforcing member and a fluorescent material, washing and drying them, and preparing them (S 210);
(S 220) of forming a metal reinforcement member of a wire rope that forms a metal reinforcement member 130 formed of an aluminum ferrule at an overlapping portion where the main wire 110 of the wire rope and the end 120 of the wire rope overlap each other;
A transparent protective member forming step (S 230) of forming a transparent protective member (140) made of a transparent material around the wire rope end (120) existing outside the metal reinforcing member (130);
After forming the transparent protective member 140, a fluorescent treatment portion 150 is formed on the outer surface of the transparent protective member 140 or on the body thereof, which is adjacent to the transparent protective member 140 or treated with a fluorescent substance A step (S 240) of forming a fluorescence treatment portion; To
Wherein the fluorescent wire rope is made of a metal.
KR1020150108792A 2015-07-31 2015-07-31 Wire Rope Having Transparent and Fluorescent Portions KR101763831B1 (en)

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KR1020150108792A KR101763831B1 (en) 2015-07-31 2015-07-31 Wire Rope Having Transparent and Fluorescent Portions

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KR101763831B1 true KR101763831B1 (en) 2017-08-02

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100854654B1 (en) * 2008-04-11 2008-08-27 김대연 Wire rope sling, and device and method for manufacturing the same
KR101292165B1 (en) * 2013-05-27 2013-08-16 대광기업 주식회사 Wire rope sling with fluorescent reinforcing member and method of producing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0134595Y1 (en) 1996-05-31 1999-02-18 이상천 A sectional shelf
KR200264547Y1 (en) 2001-10-10 2002-02-19 화성계전(주) Noctilucence coating wire rope
KR100937494B1 (en) 2009-05-22 2010-01-19 굿 와이어(주) Photoluminescent wire rope and manufacturing method
KR100961995B1 (en) 2009-12-24 2010-06-08 대광기업 주식회사 Wire rope sling manufacturing method
KR100961999B1 (en) 2009-12-24 2010-06-08 대광기업 주식회사 Wire rope sling and manufacturing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100854654B1 (en) * 2008-04-11 2008-08-27 김대연 Wire rope sling, and device and method for manufacturing the same
KR101292165B1 (en) * 2013-05-27 2013-08-16 대광기업 주식회사 Wire rope sling with fluorescent reinforcing member and method of producing the same

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