CN113561459A - Plastic steel winding pipe and manufacturing method and production equipment thereof - Google Patents
Plastic steel winding pipe and manufacturing method and production equipment thereof Download PDFInfo
- Publication number
- CN113561459A CN113561459A CN202110995749.4A CN202110995749A CN113561459A CN 113561459 A CN113561459 A CN 113561459A CN 202110995749 A CN202110995749 A CN 202110995749A CN 113561459 A CN113561459 A CN 113561459A
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- plastic
- pipe
- steel
- strip
- winding
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- 239000004033 plastic Substances 0.000 title claims abstract description 137
- 229920003023 plastic Polymers 0.000 title claims abstract description 137
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 67
- 238000004804 winding Methods 0.000 title claims abstract description 62
- 239000010410 layer Substances 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 28
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 description 14
- 238000001816 cooling Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
- B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
- B29C53/585—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features the cross-section varying along their axis, e.g. tapered, with ribs, or threads, with socket-ends
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a plastic steel winding pipe and a manufacturing method and production equipment thereof, wherein the manufacturing method comprises the following steps: step S11, producing a strip with a plastic-steel composite structure, wherein the strip comprises: the plastic mother board is integrated with the plurality of ribs, the inside of each rib is a steel belt, and the steel belt is protected in the plastic; step S12, winding and welding the strip to form a pipe; and step S13, further arranging a plastic protective layer on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic-steel winding pipe. According to the invention, the plastic protective layer is further arranged on the outer surface of the pipeline between two adjacent ribs of the existing plastic steel winding pipe, and the protection of two sides of the steel belt is enhanced, so that the plastic outside the plastic steel winding pipe is not easy to be penetrated by the steel belt, and the steel belt layer can be better wrapped in the plastic layer, thereby prolonging the service life of the pipeline.
Description
Technical Field
The invention relates to the technical field of plastic steel winding pipes, in particular to a plastic steel winding pipe and a manufacturing method and production equipment thereof.
Background
CJ/T270 Standard: the plastic-steel wound pipe is an industrial standard issued by Ministry of construction on 12.21.2007, and the standard specifies definitions, symbols and abbreviations, materials, product structures, classification and connection modes, requirements, test methods, inspection rules, signs, transportation and storage of a plastic-steel composite strip formed by extruding a steel strip and polyethylene (medium density or high density) and a plastic-steel wound pipe manufactured by winding and welding.
The plastic-steel winding pipe is made of plastic-steel composite plastic-steel winding pipe strips through spiral winding and welding, and is widely applied to underground pipeline drainage. FIG. 1 is a schematic cross-sectional view of a plastic-steel wound pipe according to the prior art. As shown in fig. 1, the plastic-steel wound pipe includes: a plurality of ribs and a plastic conduit integral with the ribs. The plurality of ribs are arranged in the length direction of the plastic steel winding pipe at intervals, each rib is arranged along the circumferential direction of the plastic steel winding pipe, and the inside of each rib is a steel belt.
In the existing processing and production process of the plastic steel winding pipe, an external plastic layer of the plastic steel winding pipe is easily penetrated by the top of the middle steel belt layer, so that the middle steel belt layer is exposed, and the exposed steel belt can corrode the steel belt layer after contacting with water, thereby influencing the whole service life of the plastic steel winding pipe. Therefore, there is a need for an improved structure of the existing plastic-steel winding pipe.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a method and a device for manufacturing a plastic-steel wound pipe, so as to manufacture a plastic-steel wound pipe with strong protection, so that the steel material inside the plastic-steel wound pipe is protected inside the plastic, thereby preventing the steel material from contacting with the outside to cause corrosion, and further prolonging the service life of the plastic-steel wound pipe.
In a second aspect, another object of the present invention is to provide a plastic-steel wound pipe, which is manufactured by the above manufacturing method and manufacturing apparatus.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a method for manufacturing a plastic-steel wound pipe, including: step S11, producing a strip with a plastic-steel composite structure, wherein the strip comprises: the plastic mother board is integrated with the plurality of ribs, the inside of each rib is a steel belt, and the steel belt is protected in the plastic; step S12, winding and welding the strip to form a pipe; and step S13, further arranging a plastic protective layer on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic-steel winding pipe.
Wherein the plastic protective layer is a plastic reinforced pipe, and the step S13 includes: and winding the plastic reinforced pipe on the outer surface of the pipeline between every two adjacent ribs to form the plastic-steel winding pipe.
Wherein, the step S13 includes: and welding the plastic reinforced pipe on the outer surface of the pipeline in a welding mode.
Wherein, before the step S13, the welding the plastic reinforced pipe on the outer surface of the pipe by adopting a welding mode includes: the plastic is fed into an extruder and a plastic reinforced pipe mold to produce the plastic reinforced pipe.
Wherein, the kind of the plastic reinforced pipe includes: PE solid wall pipe.
The step S11 and the step S12 adopt CJ/T270 standard production, and the manufacturing method is suitable for producing plastic steel winding pipes with ring rigidity of SN 4-SN 16 and pipe caliber of DN 200-DN 4200.
Wherein, the step S11 includes: the strip production line consists of a single-screw extruder, a strip operation control cabinet, a strip extrusion die, a strip shaping die, a shaping combination machine and a traction machine, so as to produce the strip.
Wherein, the step S12 includes: the production line of the pipe comprises a pipe operation control cabinet, a welding rod extruder, a hot air gun heater, a belt feeder, a winding cage, a pipe cutting saw and a pipe conveyor to produce the pipe.
In a second aspect, the present invention provides a production apparatus for a plastic-steel wound pipe, comprising: a plastic-steel winding pipe strip production line is used for producing a strip with a plastic-steel composite structure, and the strip comprises: the plastic mother board is integrated with the steel belts, and the steel belts are tightly wrapped inside the plastic; the plastic steel winding pipe production line is used for winding and welding the strip material to form a pipe; the plastic reinforced pipe production line is used for producing plastic reinforced pipes; and the welding production line is used for welding the plastic reinforced pipe on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic steel winding pipe.
In a third aspect, the invention provides a plastic-steel wound pipe, which is manufactured by the manufacturing method.
The invention has the beneficial effects that:
according to the invention, the plastic protective layer is further arranged on the outer surface of the pipeline between two adjacent ribs of the existing plastic steel winding pipe, and the two sides of the steel belt are protected and enhanced, so that the outer plastic layer of the plastic steel winding pipe is not easy to be penetrated by the steel belt, the steel belt layer can be well protected to be wrapped in the plastic layer, and the service life of the plastic steel winding pipe is prolonged.
In addition, the plastic protective layer is a plastic reinforced pipe, and the plastic reinforced pipe is welded on the outer surface of the pipeline. Meanwhile, because each rib is fixed by the plastic reinforced pipes on two sides, the position of the rib can be kept fixed, and therefore, the problem that the position of the rib can be deviated in the last production process, namely a cooling process, is avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of a plastic-steel wound pipe according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a plastic-steel wound pipe according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for manufacturing a plastic-steel wound pipe according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating an embodiment of step S13 of FIG. 3;
FIG. 5 is a schematic structural diagram of an embodiment of a production apparatus for plastic steel wound pipes according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of a plastic-steel wound pipe according to an embodiment of the invention. As shown in fig. 2, the plastic-steel wound pipe is different from the prior art plastic-steel wound pipe shown in fig. 1 in that: and a plastic protective layer is arranged on the outer surface of the pipeline between two adjacent ribs.
The plastic protective layer is a layer of plastic reinforced pipe which is wound on the outer surface of the pipeline between every two adjacent ribs. Wherein the plastic reinforced pipe is welded on the outer surface of the pipeline.
Preferably, the plastic reinforced pipe is a PE solid-walled pipe.
Preferably, the diameter of the plastic reinforced pipe is slightly smaller than the width between the two ribs, and the plastic reinforced pipe is clamped between the two adjacent ribs. Since each rib is fixed by the plastic reinforced pipes on both sides, the position of the rib is kept fixed, and therefore, the technical problem that the position of the rib can be deviated in the last production process, namely a cooling process, is avoided.
Therefore, because the two sides of each steel belt are protected and enhanced, the outer plastic layer of each steel belt is not easy to be penetrated by the steel belt, so that the steel belt is effectively wrapped in the plastic, the steel belt is not easy to be oxidized and corroded by the outside, and the service life of the plastic steel winding pipeline is prolonged.
Example two
Referring to fig. 3, fig. 3 is a schematic flow chart illustrating a manufacturing method of a plastic steel winding pipe according to an embodiment of the present invention. As shown in fig. 3, the manufacturing method includes the following steps:
s11, producing a strip with a plastic-steel composite structure, wherein the strip comprises the following steps: the plastic plate comprises a plurality of ribs and a plastic mother plate integrated with the ribs, wherein a steel belt is arranged inside each rib and is wrapped in plastic.
Wherein, the strip with three-layer material structure can be produced by a plastic steel winding pipe die, and the three-layer material structure comprises: an inner plastic layer, a middle steel belt layer and an outer plastic layer;
wherein, the structure of each layer of material is as follows:
(1) the inner plastic layer is arranged in the length direction of the strip.
(2) The intermediate steel belt layer comprises a plurality of steel belts vertically arranged on the inner plastic layer, the plurality of steel belts are arranged on the inner plastic layer at intervals, and the steel belts form ribs on the belt material.
(3) The outer plastic layer is disposed along the outer surface of the steel strip to encase the steel strip to prevent exposure of the intermediate steel strip layer to air.
Specifically, a strip production line consisting of a single-screw extruder, a strip operation control cabinet, a strip extrusion die, a strip sizing die, a sizing die and a tractor is adopted to produce the plastic steel winding pipe strip.
S12: winding and welding the strip to form a pipe;
the pipe has the flexibility and the corrosion resistance of a plastic pipe, and also has the high rigidity and the high strength of a metal pipe.
Specifically, in step S12, a pipe production line including a pipe operation control cabinet, a welding rod extruder, a hot air gun heater, a belt feeder, a winding cage, a pipe cutting saw, and a pipe conveyor is used to produce the plastic-steel wound pipe.
Preferably, step S11 and step S12 are produced using CJ/T270 standard.
S13: a plastic protective layer is further arranged on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic-steel wound pipe.
The plastic protective layer is a layer of plastic reinforced pipe or other type of pipe, and the plastic reinforced pipe is wound on the outer surface of the pipe between every two adjacent ribs.
Referring to fig. 4, fig. 4 is a flowchart illustrating an embodiment of the step S13. As shown in fig. 4, this step includes two substeps:
s131: feeding plastic into an extruder and a plastic reinforced pipe mold to produce the plastic reinforced pipe;
preferably, the plastic reinforced pipe is a PE solid-walled pipe.
Preferably, the diameter of the plastic reinforced pipe is slightly smaller than the width between the two ribs, and the plastic reinforced pipe is clamped between the two adjacent ribs. Since each rib is fixed by the plastic reinforced pipes on both sides, the position of the rib is kept fixed, and therefore, the technical problem that the position of the rib can be deviated in the last production process, namely a cooling process, is avoided.
S132: and welding the plastic reinforced pipe on the outer surface of the pipeline between every two adjacent ribs by adopting a welding mode.
In other embodiments, step S131 may be configured to be performed synchronously with step S12, for example: plastic reinforced pipes can be produced while producing the strip.
In this embodiment, a process is added to the existing production process of the plastic-steel winding pipe: and step S13, the plastic steel winding pipe of the invention can be produced. The production method is easy to implement and can be popularized and produced.
EXAMPLE III
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a production apparatus for plastic steel wound pipes according to the present invention. As shown in fig. 5, the production apparatus includes: a plastic steel winding pipe strip production line, a plastic steel winding pipe production line, a plastic reinforced pipe production line and a welding production line.
A plastic-steel winding pipe strip production line is used for producing a strip with a plastic-steel composite structure, and the strip comprises: the plastic mother board is integrated with the steel belts, and the steel belts are tightly wrapped inside the plastic.
The plastic steel winding pipe production line is used for winding and welding the strip material to form a pipe.
The plastic reinforced pipe production line is used for producing plastic reinforced pipes. The plastic reinforced pipe production line comprises: an extruder and a PE solid wall tube mold. And (3) feeding the PE plastic into an extruder and a PE solid-wall pipe mold, and producing the PE solid-wall pipe through the PE solid-wall pipe mold.
And the welding production line is used for welding the plastic protective layer on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic steel winding pipe.
As shown in FIG. 5, the manufacturing process of the plastic steel winding pipe of the invention is as follows:
(1) the strip material is produced by a plastic steel wound pipe strip material production line, and the structure of the strip material is described in step S11. And (5) feeding the strip into a plastic steel winding pipe production line to produce the pipe in the step S12.
(2) Meanwhile, the PE plastic is fed into an extruder and a PE solid wall pipe mold, a PE solid wall pipe is produced from the PE solid wall pipe mold, and the PE solid wall pipe is welded to the pipe produced in step S12.
In summary, the plastic-steel wound pipe of the present invention can be produced by further disposing a plastic protection layer on the outer surface of the pipe between two adjacent ribs of the existing plastic-steel wound pipe. Because the protection of the two sides of the steel belt is enhanced, the outer plastic layer of the plastic steel winding pipe is not easy to be penetrated by the steel belt, so that the steel belt layer can be well protected from being wrapped in the plastic layer, the steel belt is prevented from being corroded or oxidized due to contact with the outside, and the service life of the plastic steel winding pipe is prolonged.
Tests prove that the production process is suitable for producing the plastic steel winding pipe with the ring rigidity of Sn 4-Sn 16 and the caliber of the pipe material of DN 200-DN 4200.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A manufacturing method of a plastic steel winding pipe is characterized by comprising the following steps:
step S11, producing a strip with a plastic-steel composite structure, wherein the strip comprises: the plastic plate comprises a plurality of ribs and a plastic mother plate integrated with the ribs, wherein a steel belt is arranged inside each rib and protected in plastic;
s12, winding and welding the strip to form a pipe;
and step S13, further arranging a plastic protection layer on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic-steel winding pipe.
2. The method as claimed in claim 1, wherein the plastic protective layer is a plastic reinforced tube, and the step S13 includes: and winding the plastic reinforced pipe on the outer surface of the pipeline between every two adjacent ribs to form the plastic steel winding pipe.
3. The method of manufacturing according to claim 2, wherein the step S13 includes:
and welding the plastic reinforced pipe on the outer surface of the pipeline in a welding mode.
4. The method of claim 3, wherein said welding said plastic reinforced pipe to said outer surface of said pipe before said step S13 comprises:
feeding plastic into an extruder and a plastic reinforced pipe mold to produce the plastic reinforced pipe.
5. The method of manufacturing according to any one of claims 2 to 4, wherein the plastic reinforced pipe is of a type comprising: PE solid wall pipe.
6. The manufacturing method of claim 1, wherein the step S11 and the step S12 are manufactured by CJ/T270 standard, and the manufacturing method is suitable for manufacturing the plastic steel wound pipe with ring rigidity of SN 4-SN 16 and pipe caliber of DN 200-DN 4200.
7. The method of manufacturing according to claim 1, wherein the step S11 includes:
the strip production line is composed of a single-screw extruder, a strip operation control cabinet, a strip extrusion die, a strip shaping die, a shaping combination machine and a traction machine, so as to produce the strip.
8. The method of manufacturing according to claim 1, wherein the step S12 includes:
the production line comprises a pipe operation control cabinet, a welding rod extruder, a hot air gun heater, a belt feeder, a winding cage, a pipe cutting saw and a pipe conveyor to produce the pipe.
9. The utility model provides a production facility of plastic steel winding pipe which characterized in that includes:
a plastic-steel winding pipe strip production line is used for producing a strip with a plastic-steel composite structure, and the strip comprises: the steel belt structure comprises a plurality of steel belts and a plastic mother board integrated with the steel belts, wherein the steel belts are tightly wrapped inside plastic;
the plastic steel winding pipe production line is used for winding and welding the strip materials to form a pipe;
the plastic reinforced pipe production line is used for producing plastic reinforced pipes; and
and the welding production line is used for welding the plastic reinforced pipe on the outer surface of the pipeline between two adjacent ribs of the pipe to form the plastic steel winding pipe.
10. A plastic-steel wound pipe, characterized in that the plastic-steel wound pipe is manufactured by the manufacturing method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995749.4A CN113561459A (en) | 2021-08-27 | 2021-08-27 | Plastic steel winding pipe and manufacturing method and production equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995749.4A CN113561459A (en) | 2021-08-27 | 2021-08-27 | Plastic steel winding pipe and manufacturing method and production equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113561459A true CN113561459A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995749.4A Pending CN113561459A (en) | 2021-08-27 | 2021-08-27 | Plastic steel winding pipe and manufacturing method and production equipment thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113561459A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644394A (en) * | 2013-12-26 | 2014-03-19 | 山东天迈管业有限公司 | Steel-plastic wound multiple pipe and manufacturing device and manufacturing technique of steel-plastic wound multiple pipe |
| CN203703400U (en) * | 2014-02-21 | 2014-07-09 | 华创天元实业发展有限责任公司 | External damage preventing composite steel-plastic reinforced plastic pipeline |
-
2021
- 2021-08-27 CN CN202110995749.4A patent/CN113561459A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644394A (en) * | 2013-12-26 | 2014-03-19 | 山东天迈管业有限公司 | Steel-plastic wound multiple pipe and manufacturing device and manufacturing technique of steel-plastic wound multiple pipe |
| CN203703400U (en) * | 2014-02-21 | 2014-07-09 | 华创天元实业发展有限责任公司 | External damage preventing composite steel-plastic reinforced plastic pipeline |
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Application publication date: 20211029 |
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