CN115166920A - Skeleton type and loose tube layer stranded mixed optical cable - Google Patents
Skeleton type and loose tube layer stranded mixed optical cable Download PDFInfo
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- CN115166920A CN115166920A CN202210961131.0A CN202210961131A CN115166920A CN 115166920 A CN115166920 A CN 115166920A CN 202210961131 A CN202210961131 A CN 202210961131A CN 115166920 A CN115166920 A CN 115166920A
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- loose tube
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- optical cable
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- 230000003287 optical effect Effects 0.000 title claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 59
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011505 plaster Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
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- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
- G02B6/446—Ducts; Conduits; Hollow tubes for air blown fibres comprising desiccating means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
- G02B6/4478—Bending relief means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Cable Accessories (AREA)
Abstract
The invention relates to a framework type and loose tube layer stranded type mixed optical cable which comprises a reinforced core, wherein a protective installation mechanism is arranged on the reinforced core, an auxiliary assembly is arranged on the reinforced core, the protective installation mechanism comprises a fixed seat of the reinforced core, a framework body is fixedly connected to the outer side of the reinforced core, two positioning buckles are fixedly connected to the outer side of the framework body, a plurality of installation tubes are fixedly connected to the outer side of the framework body, a loose tube body is laid inside the installation tubes, two positioning rods are fixedly connected to the outer side of the loose tube body, and a sealing cover is in threaded connection with one side of each installation tube. The framework type and loose tube layer stranded hybrid optical cable is convenient to protect and protect the optical cable arranged inside through the framework type and loose tube layer stranded hybrid optical cable through the arranged protection installation mechanism when in use, and is beneficial to prolonging the service life of the optical cable arranged inside the framework type and loose tube layer stranded hybrid optical cable.
Description
Technical Field
The invention relates to the technical field of mixed optical cables, in particular to a framework type and loose tube layer stranded mixed optical cable.
Background
Hybrid fiber coaxial cable, HFC for short) is a broadband access network combining optical fiber and coaxial cable, and is an intelligent broadband access network which is based on frequency division multiplexing technology and comprehensively applies digital transmission technology, optical fiber and coaxial cable technology and radio frequency technology, and is a product combining cable television (CATV) and telephone network.
The prior communication optical cable can be generally divided into a layer stranded type, a central beam tube type and a framework type, but when the optical cable inside the optical cable is installed, the optical cable is inconvenient to carry out limiting and drying, the protection effect of the shock resistance and the buffering performance of the optical cable after the optical cable is installed is not good enough, and the service life of the optical cable after the optical cable is installed cannot be prolonged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a framework type and loose tube layer stranded hybrid optical cable which has the advantages of good protection positioning and buffering performance and the like, and solves the problems that the existing communication optical cable can be generally divided into a layer stranded type, a central beam tube type and a framework type, but the optical cable is inconvenient to be limited and dried when the internal optical cable is installed, and the protection effect of the shock resistance and the buffering performance of the optical cable after installation is not good enough, so that the service life of the optical cable after installation cannot be prolonged.
In order to achieve the purposes of protection positioning and good buffering, the invention provides the following technical scheme: the framework type and loose tube layer stranded hybrid optical cable comprises a reinforced core, wherein a protective mounting mechanism is arranged on the reinforced core, and an auxiliary component is arranged on the reinforced core;
the protective installation mechanism comprises a fixed seat of a reinforcing core, a framework body is fixedly connected to the outer side of the reinforcing core, two positioning buckles are fixedly connected to the outer side of the framework body, a plurality of installation pipes are fixedly connected to the outer side of the framework body, a loose tube body is laid inside the installation pipes, two positioning rods are fixedly connected to the outer side of the loose tube body, a sealing cover is connected to one side of each installation pipe in a threaded mode, two protective rings are arranged on the outer sides of the positioning buckles, waterproof rings are fixedly connected to the outer sides of the protective rings, waterproof layers are fixedly connected to the outer sides of the waterproof rings, composite belts are arranged on the outer sides of the waterproof layers, and first insulating protective pipes and second insulating protective pipes are arranged on the outer sides of the composite belts;
further, the auxiliary assembly comprises a clamping block fixedly connected with the first insulation protection pipe, the bottom of the clamping block and the bottom of the second insulation protection pipe are in threaded connection with screws, the positioning buckle comprises an installation cylinder fixedly connected with the framework body, a spring is fixedly connected with the inside of the installation cylinder, one side of the spring, far away from the framework body, of an elastic rod is fixedly connected with a positioning block, and the outside of the first insulation protection pipe and the outside of the second insulation protection pipe are in threaded connection with a cushion pad.
Further, the mounting groove has been seted up to the inside of installation pipe, loose sleeve pipe body passes through mounting groove and installation pipe swing joint.
Further, the mounting pipe and the one side that sealed lid is relative have all been seted up the spread groove, the locating lever pass through the spread groove with respectively with mounting pipe and sealed lid swing joint.
Furthermore, a clamping groove is formed in the top of the second insulating protection tube, and the clamping block is connected with the second insulating protection tube in a clamping mode through the clamping groove.
Further, threaded holes are formed in the bottoms of the clamping block and the second insulating protection pipe, and the screw is in threaded connection with the clamping block and the second insulating protection pipe through the threaded holes respectively.
Further, the waterproof ring is made of water-blocking yarn, and the composite belt is made of steel and plastic.
Further, the waterproof layer is water-blocking cable paste and is connected with the waterproof ring in a coating mode.
Furthermore, one side of the installation cylinder, which is far away from the framework body, is provided with a telescopic hole, and the elastic rod extends to the inside of the installation cylinder through the telescopic hole.
Furthermore, the inner wall of the protection ring is provided with two positioning holes corresponding to the positioning blocks, and the positioning blocks are connected with the protection ring in a clamping mode through the positioning holes.
Compared with the prior art, the invention provides a framework type and loose tube layer stranded mixed optical cable, which has the following beneficial effects:
1. this skeleton formula and loose sleeve pipe layer hank formula mixed type optical cable, through the protection installation mechanism that sets up, the convenience protects and protects the optical cable of installation in inside through this mechanism when using, help improving the life of optical cable installation behind this mechanism is inside, it generally can divide into the layer hank formula to have solved present communication optical cable, central beam tube formula and skeleton formula, but when installing inside optical cable, inconvenient carry out spacing drying to the optical cable, and the protection effect of the shock resistance of optical cable and cushioning nature is not enough after the installation, make the optical cable can't obtain the problem that improves in the life who installs the back.
2. This skeleton formula and pine sleeve pipe layer stranded mixed type optical cable through the auxiliary assembly who sets up, conveniently improves the shock resistance of installation back optical cable through auxiliary assembly when using.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating the construction of a skeletal type and loose tube layer stranded hybrid optical cable according to the present invention;
fig. 2 is a partial schematic view of a positioning buckle structure of a framework-type and loose tube layer stranded hybrid optical cable according to the present invention.
In the figure: the structure comprises a reinforcing core 1, a fixing seat 2, a framework body 3, an installation pipe 4, a loose sleeve pipe body 5, a positioning rod 6, a sealing cover 7, a positioning buckle 8, a protective ring 9, a composite belt 10, a waterproof ring 11, a waterproof layer 12, a first insulating protective pipe 13, a second insulating protective pipe 14, a clamping block 15, a screw 16, an installation barrel 17, a spring 18, an elastic rod 19, a positioning block 20 and a cushion pad 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the framework-type and loose-tube layer-stranded hybrid optical cable includes a strength member 1, a protective mounting mechanism is disposed on the strength member 1, and an auxiliary component is disposed on the strength member 1.
In this embodiment, protection installation mechanism includes fixing base 2 with enhancement core 1, strengthen the outside fixedly connected with skeleton body 3 of core 1, the outside fixedly connected with quantity of skeleton body 3 is two location knot 8, the outside fixedly connected with quantity of skeleton body 3 is a plurality of installation pipe 4, loose tube body 5 has been laid to the inside of installation pipe 4, the mounting groove has been seted up to the inside of installation pipe 4, loose tube body 5 passes through mounting groove and installation pipe 4 swing joint, installation pipe 4 is laid through the mounting groove that loose tube body 5 set up when using to the convenience.
In this embodiment, loose sleeve body 5 outside fixedly connected with quantity is two locating levers 6, and one side threaded connection of installation pipe 4 has sealed lid 7, and the spread groove has all been seted up to installation pipe 4 and the relative one side of sealed lid 7, and locating lever 6 passes through the spread groove and respectively with installation pipe 4 and the 7 swing joint of sealed lid, conveniently utilizes the spread groove to carry on spacingly to loose sleeve body 5 on the locating lever 6 when using.
The outer side of the positioning buckle 8 is provided with two protection rings 9, the outer side of each protection ring 9 is fixedly connected with a waterproof ring 11, the outer side of each waterproof ring 11 is fixedly connected with a waterproof layer 12, each waterproof layer 12 is water-blocking cable paste, each waterproof layer 12 is connected with the corresponding waterproof ring 11 in a coating mode, the outer side of each waterproof layer 12 is provided with a composite tape 10, each waterproof ring 11 is water-blocking yarn, each composite tape 10 is a steel-plastic composite tape, and the outer side of each composite tape 10 is provided with a first insulating protection pipe 13 and a second insulating protection pipe 14.
In this embodiment, the auxiliary assembly includes the fixture block 15 with first insulation protective pipe 13 fixed connection, the draw-in groove has been seted up at the top of second insulation protective pipe 14, fixture block 15 passes through the draw-in groove and the joint of second insulation protective pipe 14, the equal threaded connection in bottom of fixture block 15 and second insulation protective pipe 14 has screw 16, threaded hole has all been seted up to the bottom of fixture block 15 and second insulation protective pipe 14, screw 16 passes through the screw hole respectively with fixture block 15 and the 14 threaded connection of second insulation protective pipe, conveniently utilize screw 16 to fix a position and fix second insulation protective pipe 14 and first insulation protective pipe 13 when using, and still can dismantle the second insulation protective pipe 14 and the first insulation protective pipe 13 and the waterproof circle 11 in the outside when not using, waterproof layer 12 and composite strip 10 together, make it more convenient when installing loose tube body 5.
Wherein, the positioning buckle 8 includes the installation section of thick bamboo 17 with skeleton body 3 fixed connection, the inside fixedly connected with spring 18 of an installation section of thick bamboo 17, one side fixedly connected with elastic rod 19 of skeleton body 3 is kept away from to spring 18, the telescopic hole has been seted up to one side that skeleton body 3 was kept away from to an installation section of thick bamboo 17, elastic rod 19 extends to the inside of an installation section of thick bamboo 17 through the telescopic hole, one side fixedly connected with locating piece 20 of spring 18 is kept away from to elastic rod 19, the inner wall of guard ring 9 has been seted up quantity and has been two and the locating hole corresponding with locating piece 20, locating piece 20 passes through locating hole and guard ring 9 joint, the equal fixedly connected with blotter 21 in the outside of first insulation protective pipe 13 and second insulation protective pipe 14.
This embodiment is when using, when installing this optical cable, the user holds fixing base 2, then place loose tube body 5 in the inside of installation pipe 4, and rotate sealed lid 7 and installation pipe 4 threaded connection, make locating lever 6 fix in the inside of sealed lid 7 and installation pipe 4, help reducing to lay behind installation pipe 4, installation pipe 4 takes place to rock, and get up inside installation pipe 4 and skeleton 3 and the fixed protection of position buckle 8 through the guard ring 9 that sets up when using, conveniently carry out effectual protection to inside optical cable, and the spring 18 and elastic rod 19 and locating piece 20 on usable position buckle 8 are to making skeleton 3 and guard ring 9 fix a position when using, and the waterproof circle 11 that sets up on the guard ring 9, waterproof layer 12 and compound area 10 strengthen waterproof and protection once more to inside optical cable, and installation back accessible rotation screw 16, then screw 16 passes through the threaded connection with fixture block 15 and second insulating guard pipe 14, make second insulating guard pipe 14 and first insulating guard pipe 13 and guard ring 9 waterproof circle 11, waterproof layer 12 and compound area 10 still rotate the screw assembly outside the butt joint when carrying out the maintenance.
The beneficial effects of the above embodiment are as follows:
this skeleton type and loose tube layer stranded hybrid optical cable, through the protection installation mechanism that sets up, conveniently protect and protect the optical cable of installation in inside through this mechanism when using, help improving the life of optical cable installation behind this mechanism inside, it generally can divide into the layer stranded type to have solved present communication optical cable, central beam tube formula and skeleton type, but when installing inside optical cable, inconvenient carry out spacing drying to the optical cable, and the protection effect of the antidetonation of optical cable and resiliency is not good enough after the installation, make the optical cable can't obtain the problem that improves in the life who installs the back.
This skeleton formula and pine sleeve pipe layer stranded mixed type optical cable through the auxiliary assembly who sets up, conveniently improves the shock resistance of installation back optical cable through auxiliary assembly when using.
The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Skeleton formula and pine sleeve pipe layer stranded mixed type optical cable, including reinforced core (1), its characterized in that: the reinforced core (1) is provided with a protective installation mechanism, and the reinforced core (1) is provided with an auxiliary component;
the protective installation mechanism comprises a fixed seat (2) of a reinforcing core (1), the outer side of the reinforcing core (1) is fixedly connected with a framework body (3), the outer side of the framework body (3) is fixedly connected with two positioning buckles (8), the outer side of the framework body (3) is fixedly connected with a plurality of installation pipes (4), a loose tube body (5) is laid in each installation pipe (4), the outer side of each loose tube body (5) is fixedly connected with two positioning rods (6), one side of each installation pipe (4) is in threaded connection with a sealing cover (7), the outer side of each positioning buckle (8) is provided with two protective rings (9), the outer side of each protective ring (9) is fixedly connected with a waterproof ring (11), the outer side of each waterproof ring (11) is fixedly connected with a waterproof layer (12), the outer side of each waterproof layer (12) is provided with a composite belt (10), and the outer side of each composite belt (13) is provided with a first insulating protective pipe (13) and a second insulating protective pipe (14);
the auxiliary assembly comprises a clamping block (15) fixedly connected with a first insulation protection pipe (13), the bottom of the clamping block (15) and the bottom of a second insulation protection pipe (14) are connected with screws (16) in a threaded mode, the positioning buckle (8) comprises an installation barrel (17) fixedly connected with a framework body (3), a spring (18) is fixedly connected with the inside of the installation barrel (17), one side of the spring (18) far away from the framework body (3) is fixedly connected with an elastic rod (19), one side of the elastic rod (19) far away from the spring (18) is fixedly connected with a positioning block (20), and a cushion pad (21) is fixedly connected with the outer sides of the first insulation protection pipe (13) and the second insulation protection pipe (14).
2. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the mounting tube is characterized in that a mounting groove is formed in the mounting tube (4), and the loose tube body (5) is movably connected with the mounting tube (4) through the mounting groove.
3. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the mounting tube (4) and the opposite side of the sealing cover (7) are provided with connecting grooves, and the positioning rod (6) is movably connected with the mounting tube (4) and the sealing cover (7) through the connecting grooves.
4. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the top of the second insulating protective pipe (14) is provided with a clamping groove, and the clamping block (15) is clamped with the second insulating protective pipe (14) through the clamping groove.
5. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: threaded holes are formed in the bottoms of the clamping block (15) and the second insulating protection pipe (14), and the screw (16) is in threaded connection with the clamping block (15) and the second insulating protection pipe (14) through the threaded holes respectively.
6. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the waterproof ring (11) is made of water-blocking yarn, and the composite belt (10) is made of steel-plastic composite belt.
7. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the waterproof layer (12) is water-blocking cable plaster, and the waterproof layer (12) is connected with the waterproof ring (11) in a coating mode.
8. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the telescopic hole is formed in one side, far away from the framework body (3), of the installation barrel (17), and the elastic rod (19) extends to the inside of the installation barrel (17) through the telescopic hole.
9. The skeletal and loose tube layer stranded hybrid fiber optic cable of claim 1, wherein: the inner wall of the protection ring (9) is provided with two positioning holes corresponding to the positioning blocks (20), and the positioning blocks (20) are connected with the protection ring (9) in a clamping mode through the positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210961131.0A CN115166920A (en) | 2022-08-11 | 2022-08-11 | Skeleton type and loose tube layer stranded mixed optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210961131.0A CN115166920A (en) | 2022-08-11 | 2022-08-11 | Skeleton type and loose tube layer stranded mixed optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN115166920A true CN115166920A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210961131.0A Pending CN115166920A (en) | 2022-08-11 | 2022-08-11 | Skeleton type and loose tube layer stranded mixed optical cable |
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| CN (1) | CN115166920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116774370A (en) * | 2023-06-12 | 2023-09-19 | 宏安集团有限公司 | High-compression-resistance and strong-waterproof layer-stranded optical cable |
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2022
- 2022-08-11 CN CN202210961131.0A patent/CN115166920A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116774370A (en) * | 2023-06-12 | 2023-09-19 | 宏安集团有限公司 | High-compression-resistance and strong-waterproof layer-stranded optical cable |
| CN116774370B (en) * | 2023-06-12 | 2024-03-26 | 宏安集团有限公司 | High-compression-resistance and strong-waterproof layer-stranded optical cable |
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