CN111642463B - Raising facility with nest holding duck screening function and raising method - Google Patents
Raising facility with nest holding duck screening function and raising method Download PDFInfo
- Publication number
- CN111642463B CN111642463B CN202010669555.0A CN202010669555A CN111642463B CN 111642463 B CN111642463 B CN 111642463B CN 202010669555 A CN202010669555 A CN 202010669555A CN 111642463 B CN111642463 B CN 111642463B
- Authority
- CN
- China
- Prior art keywords
- nest
- holding
- duck
- trolley
- ducks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000272525 Anas platyrhynchos Species 0.000 title claims abstract description 31
- 238000012216 screening Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 241000272517 Anseriformes Species 0.000 claims abstract description 32
- 238000005192 partition Methods 0.000 claims abstract description 26
- 241000272834 Cairina moschata Species 0.000 claims abstract description 23
- 230000017448 oviposition Effects 0.000 claims abstract description 8
- 235000013601 eggs Nutrition 0.000 claims description 14
- 230000003203 everyday effect Effects 0.000 claims description 6
- 230000002618 waking effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 241000193057 Biziura lobata Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
- A01K31/14—Nest-boxes, e.g. for singing birds or the like
- A01K31/16—Laying nests for poultry; Egg collecting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K39/00—Feeding or drinking appliances for poultry or other birds
- A01K39/04—Combined feeding and drinking appliances, e.g. also for batteries
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K45/00—Other aviculture appliances, e.g. devices for determining whether a bird is about to lay
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Birds (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- Housing For Livestock And Birds (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
The raising facility with the nest-holding duck screening function comprises a muscovy duck house provided with two longitudinal walls and two transverse walls, wherein a slide way support is arranged in the muscovy duck house along the longitudinal walls, and a passageway with the width of 60-80 cm is formed between the slide way support and the longitudinal walls; a plurality of side plates are movably arranged on one side, close to the aisle, of the slide way support, and the opposite sides of the slide way support are open, and a plurality of partition plates are also arranged on the slide way support and are mutually perpendicular to the side plates; the trolley is movably arranged at the top end of the slideway bracket through the slideway. A driving device is arranged above the passageway through a wheel shaft of the trolley. The lower extreme of transverse wall be provided with drive device assorted export. The invention also provides a feeding method with the nest holding duck screening function. The method is beneficial to screening and eliminating the nest-holding ducks, is beneficial to providing more egg laying positions, and can obviously reduce the management workload.
Description
Technical Field
The invention relates to a muscovy duck feeding device, in particular to a muscovy duck feeding device in an egg laying period.
Background
The muscovy duck academic name Carina moschata, also called musk duck, belongs to different species from common domestic ducks. The muscovy duck is one of the very promising poultry species for meat and liver. It has the advantages of large size, rapid growth, good liver production performance, etc.
The muscovy ducks can be raised in a free-range mode, a semi-free-range mode or a house-in-house mode, and the industrial raising is generally performed in a whole house-in-house mode due to environmental protection. Because the muscovy ducks have nest holding habit, nest holding appears after laying eggs for 3-4 weeks. The prior measures are to select the nest-holding ducks, and the nest-holding ducks are caught up with other duck houses to wake up, so that the nest-holding ducks are raised in the whole house instead. There is no playing field outside. And small channels, and windows are all plugged, so that the selection is difficult; in addition, the muscovy ducks like to lay eggs at the wall edges and other relative hidden positions, the ideal egg laying positions in the existing duck shed are not more, the yield is reduced to a certain extent, and difficulties are brought to the egg picking of workers.
Disclosure of Invention
The invention aims to solve the technical problem of providing a raising facility with a nest-holding duck screening function, which is favorable for screening and eliminating nest-holding ducks, is favorable for providing more egg laying positions and can obviously reduce management workload.
In order to solve the technical problems, the raising facility with the nest holding duck screening function comprises a muscovy duck house provided with two longitudinal walls and two transverse walls, wherein a slide way support is arranged in the muscovy duck house along the longitudinal walls, and a passageway with the width of 60-80 cm is formed between the slide way support and the longitudinal walls; a plurality of side plates are movably arranged on one side, close to the aisle, of the slide way support, and the opposite sides of the slide way support are open, and a plurality of partition plates are also arranged on the slide way support and are mutually perpendicular to the side plates; the trolley is movably arranged at the top end of the slideway bracket through the slideway.
A driving device is arranged above the passageway through a wheel shaft of the trolley.
The lower extreme of transverse wall be provided with drive device assorted export.
The invention also provides a feeding method with the nest holding duck screening function, which comprises the following steps:
step A: driving the breeding muscovy ducks into a muscovy duck shed for feeding, and transporting the feed to a plurality of designated positions and feeding the feed through a trolley at regular time every day;
and (B) step (B): the partition plates and the side plates form a plurality of partitions with closed 3 surfaces and open 1 surface, and the duck eggs are collected in the partitions at regular time every day and transported out in a centralized manner through the trolley;
step C: observing and judging whether suspected nest-holding ducks exist in the partition when collecting the duck eggs; if yes, the side plates are pulled out upwards, and the suspected nest-holding ducks are driven into the passageway between the slideway support and the longitudinal wall;
step D: the nest holding ducks are driven at regular time; the outlet is opened, the trolley is pushed to the tail end of the slideway on the opposite side of the outlet, a driving device is arranged on the wheel shaft of the trolley, the trolley is slowly pushed, and all nest-holding ducks in the passageway are driven to be out of the outlet and then are awakened.
The step C and the step D also comprise a step D1: further screening of the nest-holding ducks: and C, temporarily raising the suspected nest-holding duck individuals screened in the step C in the specified time period in the passageway, and if the egg laying phenomenon is found, reducing the nest holding suspicion of the individuals.
The invention has the advantages that: A. the partition plate and the side plate form a plurality of partitions with closed 3 surfaces and open 1 surface, the partitions are ideal egg laying positions which accord with the habit of the Muscovy ducks, most eggs are laid in the partitions, the work load of egg collection is concentrated in the partitions, and the management efficiency is greatly improved; in addition, the manager can reasonably set the number of partitions according to the production requirement; B. because the nest holding ducks do not like to move, the manager can discriminate the nest holding ducks only by observing the partitions one by one, so that the discrimination accuracy is improved, and the workload is further reduced; C. when the suspected nest-holding ducks are found, the suspected nest-holding ducks can be driven into the corridor only by opening the side plates, so that the workload is small, the contact amount between the limbs of the staff and the muscovy ducks is small, the improvement of the working efficiency is facilitated, and the risk of cross infection of people and livestock is reduced; D. the nest-holding ducks entering the passageway can be intensively driven by a device on the trolley, no people or livestock contact in the operation process, and the interference to the non-nest-holding ducks is small; E. the trolley is used for transporting feed, drinking water, duck eggs and nest-holding ducks; F. the slideway bracket is also used for supporting the rail and forming a partition.
Drawings
Fig. 1 is a schematic structural view of a feeding facility with a nest-holding duck screening function of the present invention;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a schematic view of the cooperation between the trolley, the slideway bracket, the driving device and the longitudinal wall.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As can be seen from fig. 1, 2 and 3, the raising facility with the nest-holding duck screening function comprises a muscovy duck house provided with two longitudinal walls 1 and two transverse walls 2, wherein a slide way support 3 is arranged in the muscovy duck house along the longitudinal walls 1, and a passageway with the width of 60-80 cm is formed between the slide way support 3 and the longitudinal walls 1; a plurality of side plates 4 are movably arranged on one side, close to the aisle, of the slide way support 3, the opposite sides of the slide way support are open, a plurality of partition plates 5 are further arranged on the slide way support 3, and the partition plates 5 are mutually perpendicular to the side plates 4; the trolley 7 is movably arranged at the top end of the slideway bracket 3 through the slideway 6.
In this embodiment, a slide support 3 is respectively arranged along two longitudinal walls 1, so that 2 passageways are correspondingly formed, which is beneficial to increasing ideal egg laying positions and providing enough space for screening nest-holding ducks.
In the embodiment, two slide ways 6 are arranged on the slide way support 3 in parallel, and the trolley 7 is a 4-wheel trolley.
A driving device 8 is arranged above the aisle through an axle 70 of the trolley 7. In this embodiment, the driving device 8 is a plurality of door curtains made of plastic materials, and has a small dead weight and a certain falling property.
The lower end of the transverse wall 2 is provided with an outlet 20 matched with the driving device 8. The outlet is provided with a closing device which is opened when the nest-holding ducks are driven.
The invention also provides a feeding method with the nest holding duck screening function, which comprises the following steps:
step A: the method comprises the steps of expelling the breeding muscovy ducks into a muscovy duck shed for feeding, and transporting feed to a plurality of designated positions through a trolley 7 and feeding at regular time every day;
and (B) step (B): the partition board 5 and the side board 4 form a plurality of partitions with closed 3 surfaces and open 1 surface, and the duck eggs are collected in the partitions at regular time every day and are transported out in a centralized way through the trolley 7;
step C: observing and judging whether suspected nest-holding ducks exist in the partition when collecting the duck eggs; if yes, the side plate 4 is pulled out upwards, and the suspected nest-holding ducks are driven into the passageway between the slide way support 3 and the longitudinal wall 1;
step D: the nest holding ducks are driven at regular time; opening the outlet 20, pushing the trolley to the tail end of the slideway 6 on the opposite side of the outlet 20, installing the driving device 8 on the wheel shaft 70 of the trolley 7, slowly pushing the trolley, driving all nest-holding ducks in the passageway to the outside of the outlet, and waking up.
The step C and the step D also comprise a step D1: further screening of the nest-holding ducks:
the passageway between slide support 3 and longitudinal wall 1 is used for suspected nest duck to support temporarily, because nest duck does not lay eggs basically, consequently, if find the nest duck egg in the passageway, then reduce the nest suspicion of the individual nest of nest duck in the passageway, drive it again in the duck house from the passageway if necessary. And C, the preliminary screening is performed, so that the number of suspected nest-holding ducks in the passageway in a certain period of time is small, and the accuracy of further screening work is high. If necessary, the nest holding ducks can be separated and distinguished one by one.
The invention improves the production efficiency, reduces the workload, is beneficial to improving the discrimination accuracy of the nest-holding ducks and is beneficial to timely carrying out the waking operation.
The present invention is not limited to the above-described embodiments, and various modifications and variations can be made by those skilled in the art in light of the present invention without departing from the spirit and the essence of the invention, but still fall within the scope of the invention.
Claims (1)
1. The raising method with the nest holding duck screening function comprises a raising facility, wherein the raising facility comprises a muscovy duck house provided with two longitudinal walls (1) and two transverse walls (2), a slide way support (3) is arranged in the muscovy duck house along the longitudinal walls (1), and a passageway with the width of 60-80 cm is formed between the slide way support (3) and the longitudinal walls (1); a plurality of side plates (4) are movably arranged on one side, close to the aisle, of the slide support (3) and the opposite sides of the slide support are open, a plurality of partition plates (5) are further arranged on the slide support (3), and the partition plates (5) are mutually perpendicular to the side plates (4); a trolley (7) is movably arranged at the top end of the slideway bracket (3) through a slideway (6); a driving device (8) is arranged above the aisle through an axle (70) of the trolley (7); an outlet (20) matched with the driving device (8) is arranged at the lower end of the transverse wall (2);
the method is characterized in that: the raising method with the nest holding duck screening function comprises the following steps of:
step A: the muscovy ducks are driven into a muscovy duck shed for feeding, and the feed is transported to a plurality of designated positions through a trolley (7) and fed every day at regular time;
and (B) step (B): the partition plate (5) and the side plate (4) form a plurality of partitions with closed 3 surfaces and open 1 surface, and the duck eggs are collected in the partitions at regular time every day and transported out in a centralized way through the trolley (7);
step C: observing and judging whether suspected nest-holding ducks exist in the partition when collecting the duck eggs; if the duck is in the passageway, the side plates (4) are pulled out upwards, and the suspected nest-holding ducks are driven into the passageway between the slide support (3) and the longitudinal wall (1);
step D: the nest holding ducks are driven at regular time; opening an outlet (20), pushing the trolley to the tail end of a slideway (6) at the opposite side of the outlet (20), mounting a driving device (8) on a wheel shaft (70) of the trolley (7), slowly pushing the trolley, driving all nest-holding ducks in the passageway to the outside of the outlet, and waking up;
the step C and the step D also comprise a step D1: further screening of the nest-holding ducks: and C, temporarily raising the suspected nest-holding duck individuals screened in the step C in the passageway within the appointed time period, and if the egg laying phenomenon is found, reducing the nest holding suspicion of the individuals and driving the individuals from the passageway to the duck shed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669555.0A CN111642463B (en) | 2020-07-13 | 2020-07-13 | Raising facility with nest holding duck screening function and raising method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669555.0A CN111642463B (en) | 2020-07-13 | 2020-07-13 | Raising facility with nest holding duck screening function and raising method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111642463A CN111642463A (en) | 2020-09-11 |
| CN111642463B true CN111642463B (en) | 2023-12-05 |
Family
ID=72349001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010669555.0A Active CN111642463B (en) | 2020-07-13 | 2020-07-13 | Raising facility with nest holding duck screening function and raising method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111642463B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642411A (en) * | 2002-03-27 | 2005-07-20 | 布廷纳股份有限公司 | Device and method for driving animals in an oblong corridor section |
| UA96370C2 (en) * | 2010-05-19 | 2011-10-25 | Институт Птицеводства Украинской Академии Аграрных Наук | Method for preventing from brooding turkeys |
| CN205492110U (en) * | 2016-03-18 | 2016-08-24 | 鹤壁市博龙畜牧机械有限公司 | Automatic case of laying eggs send egg and drives device |
| CN206507036U (en) * | 2017-01-07 | 2017-09-22 | 潘冬洋 | A kind of birds raise circle |
| CN206760430U (en) * | 2017-05-22 | 2017-12-19 | 陈建钧 | Free-ranging chickens ecological hen house |
| CN206963648U (en) * | 2017-05-25 | 2018-02-06 | 永胜富强农业开发有限责任公司 | A kind of new breeding layer chicken hen house |
| CN109122576A (en) * | 2018-09-27 | 2019-01-04 | 安庆永强农业科技股份有限公司 | The laying period management method of large-scale cultivation kind duck |
| CN109463351A (en) * | 2018-11-27 | 2019-03-15 | 王娜 | Stereo ecological cultivation equipment |
| CN208821490U (en) * | 2018-09-29 | 2019-05-07 | 河南万华畜牧设备有限公司 | A kind of novel device for driving away |
| CN109952977A (en) * | 2019-04-26 | 2019-07-02 | 山东大佳机械有限公司 | One kind is novel to catch up with duck device |
| CN209234667U (en) * | 2018-08-29 | 2019-08-13 | 王海霞 | A kind of open air free-ranging duck is with catching up with duck bar |
| CN209995084U (en) * | 2018-12-10 | 2020-01-31 | 贺恒志 | Movable egg laying nest, movable egg laying nest device and waterfowl egg laying device |
| CN212520487U (en) * | 2020-07-13 | 2021-02-12 | 安庆永强农业科技股份有限公司 | Feeding facility with brood duck screening function |
-
2020
- 2020-07-13 CN CN202010669555.0A patent/CN111642463B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642411A (en) * | 2002-03-27 | 2005-07-20 | 布廷纳股份有限公司 | Device and method for driving animals in an oblong corridor section |
| UA96370C2 (en) * | 2010-05-19 | 2011-10-25 | Институт Птицеводства Украинской Академии Аграрных Наук | Method for preventing from brooding turkeys |
| CN205492110U (en) * | 2016-03-18 | 2016-08-24 | 鹤壁市博龙畜牧机械有限公司 | Automatic case of laying eggs send egg and drives device |
| CN206507036U (en) * | 2017-01-07 | 2017-09-22 | 潘冬洋 | A kind of birds raise circle |
| CN206760430U (en) * | 2017-05-22 | 2017-12-19 | 陈建钧 | Free-ranging chickens ecological hen house |
| CN206963648U (en) * | 2017-05-25 | 2018-02-06 | 永胜富强农业开发有限责任公司 | A kind of new breeding layer chicken hen house |
| CN209234667U (en) * | 2018-08-29 | 2019-08-13 | 王海霞 | A kind of open air free-ranging duck is with catching up with duck bar |
| CN109122576A (en) * | 2018-09-27 | 2019-01-04 | 安庆永强农业科技股份有限公司 | The laying period management method of large-scale cultivation kind duck |
| CN208821490U (en) * | 2018-09-29 | 2019-05-07 | 河南万华畜牧设备有限公司 | A kind of novel device for driving away |
| CN109463351A (en) * | 2018-11-27 | 2019-03-15 | 王娜 | Stereo ecological cultivation equipment |
| CN209995084U (en) * | 2018-12-10 | 2020-01-31 | 贺恒志 | Movable egg laying nest, movable egg laying nest device and waterfowl egg laying device |
| CN109952977A (en) * | 2019-04-26 | 2019-07-02 | 山东大佳机械有限公司 | One kind is novel to catch up with duck device |
| CN212520487U (en) * | 2020-07-13 | 2021-02-12 | 安庆永强农业科技股份有限公司 | Feeding facility with brood duck screening function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111642463A (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Letourneau et al. | Density Patterns of Piper Ant‐Plants and Associated Arthropods: Top‐Predator Trophic Cascades in a Terrestrial System? 1 | |
| CN103931541B (en) | Functional pond for culturing mass freshwater fishes | |
| Norghauer et al. | Tree size and fecundity influence ballistic seed dispersal of two dominant mast-fruiting species in a tropical rain forest | |
| CN213719375U (en) | A collection device for laying hen crowd chicken coop | |
| CN212520487U (en) | Feeding facility with brood duck screening function | |
| CN202190629U (en) | Laying nest for freely raising laying hens | |
| CN111642463B (en) | Raising facility with nest holding duck screening function and raising method | |
| CN1286364C (en) | Ecological combined smoke cultivating cage and its making process | |
| CN109952974A (en) | A kind of goose, which is laid eggs, intelligent record system and to be recorded family kind goose using it and lays eggs the method for behavior | |
| CN115281115A (en) | Chicken manure integrated intelligent chicken discharging system | |
| CN211983328U (en) | Shrimp and crab concentrated breeding device | |
| CN106719249B (en) | Ecological breeding system | |
| CN210328932U (en) | Goose house is used in individual breeding | |
| CN212487968U (en) | Bee-keeping cabinet | |
| CN204014712U (en) | The young female rabbit breeding cage of individual layer | |
| CN103283634B (en) | Storage-rack-type chicken-raising case | |
| CN204707720U (en) | A kind of laying hen is flat supports unit | |
| CN209861953U (en) | Pull out birds cage utensil | |
| CN203597223U (en) | Feces cleaner applied to chicken house | |
| CN215684311U (en) | Case is bred to pull formula earthworm | |
| CN218736632U (en) | Assembled culture attachment frame | |
| CN201758664U (en) | Intelligent hencoop | |
| CN215270141U (en) | Device is raised to fall webworm larva indoor feed | |
| CN219269848U (en) | Novel cage of raising chickens | |
| CN218977748U (en) | A rearing cage for mud bee biological observation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Breeding facilities and methods with nest duck screening function Granted publication date: 20231205 Pledgee: Anqing Yonghua Financing Guarantee Co.,Ltd. Pledgor: ANQING YONGQIANG AGRICULTURAL SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2024980006828 |