KR20100087875A - Soil supply device for seedling box - Google Patents

Soil supply device for seedling box Download PDF

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Publication number
KR20100087875A
KR20100087875A KR1020090006915A KR20090006915A KR20100087875A KR 20100087875 A KR20100087875 A KR 20100087875A KR 1020090006915 A KR1020090006915 A KR 1020090006915A KR 20090006915 A KR20090006915 A KR 20090006915A KR 20100087875 A KR20100087875 A KR 20100087875A
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KR
South Korea
Prior art keywords
soil
pinion
box
pair
side frame
Prior art date
Application number
KR1020090006915A
Other languages
Korean (ko)
Inventor
구진섭
Original Assignee
구진섭
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Filing date
Publication date
Application filed by 구진섭 filed Critical 구진섭
Priority to KR1020090006915A priority Critical patent/KR20100087875A/en
Publication of KR20100087875A publication Critical patent/KR20100087875A/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029—Receptacles for seedlings
    • A01G9/0293—Seed or shoot receptacles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029—Receptacles for seedlings
    • A01G9/0299—Handling or transporting of soil blocks or seedlings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/08—Devices for filling-up flower-pots or pots for seedlings; Devices for setting plants or seeds in pots
    • A01G9/081—Devices for filling-up pots

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Sowing (AREA)

Abstract

PURPOSE: A soil supply device for a seedling box is provided to easily adjust a height of a roller brush by rotating an adjusting lever to a constant angle and to rapidly control a height of a seedling boxes with various standards according to the soil height. CONSTITUTION: A side frame(10) is installed in a progress direction of a seeding box at a constant interval and includes a guide groove up and down. A cylindrical hopper(20) includes a vertical plate(22) installed at a side frame and a connection plate(24) installed y connecting the vertical plate. A transfer belt(30) is installed on the side frame to be located on the bottom of the hopper. A culture soil port adjusting device(40) is installed at the side frame to adjust the amount of soil. A roller brush(50) passes through the guide groove of the side frame and includes a plurality of dispersion brushes(52). A pinion(60) is pivotally installed at the side frame. A rack(70) is connected to an end of a shaft of the roller brush. An adjusting lever(80) is fixed on one end of the pinion.

Description

Soil Supply Device for Seedling Box}

The present invention relates to a soil feeding apparatus for the hair growth box, and since the height of the roller brush is easily adjusted by rotating the adjustment lever installed on the pinion, the hair growth box capable of responding quickly according to the height of the hair growth box or the height of the soil. It relates to a soil supply device for.

Recently, farmers are sowing seed and cultivating germinated seedlings using a standardized nursery box in order to reduce scarcity and efficiently cultivate seedlings.

For example, put seedlings in soil in a rectangular nursery box and sow seeds, then cover the soil and install seedling boxes in an environment where seeds can germinate and grow well. After seedlings have grown sufficiently, seedlings are used in rice paddies and fields. Planting process.

The Republic of Korea Utility Model Registration No. 20-0165457 discloses a rice seed planter that can supply a seedling box, spread the soil on the nursery box, spread the rice seed, and then cover the soil continuously.

In addition, the Korean Utility Model Registration No. 20-0165459 installs a soil supply hopper, a soil feeder, a soil separator, a rotary brush, a compaction roller, etc. in order to uniformly and easily spread the soil on a continuously supplied hair growth box. Soil feeding device for rice seed is disclosed.

By the way, the conventional soil supply device is configured to adjust the position of the rotary brush to the height of the hair raising box by forming a long hole in the rotary brush support plate, and by installing a position adjusting tool for supporting both ends of the rotary brush with a nut, There is a problem that it is difficult to adjust the height quickly and easily according to the height of the box.

In general, the size of the hair growth box is standardized to 32mm, 35mm, 38mm, and the height (depth) of the soil contained in the hair growth box is set according to the situation (seed type and seeding state, etc.). In the supply device, the necessity of quickly and easily adjusting the upper and lower positions of the rotary brush is urgently required.

The present invention has been made in view of the above points, it is possible to easily adjust the height of the roller brush by rotating the adjustment lever at a predetermined angle to quickly correspond to the height of the sanding box and soil of various standards To provide a possible soil feeding device for the hair raising box, the purpose is.

Soil supply device for the hair growth box proposed by the present invention is a pair of side frames that are installed long in the direction of progress of the hair growth box at a predetermined interval, the pair of vertical plates and vertically installed in the side frame and the direction before and after the hair growth box Soil that is dropped into a cylindrical hopper consisting of a pair of connecting plates installed by connecting a vertical plate, a transfer belt installed on the side frame so as to be positioned below the hopper, and a hair nursery box moving below the transfer belt. To adjust the amount of the discharge control device is installed on the side frame, and evenly installed on the side frame and the soil is dropped on the nursery box roller brush and a plurality of dispersion brushes are installed on the circumferential surface, and the side A pinion rotatably mounted to the frame, and connected to the shaft end of the roller brush, And a rack to engage the unloading moved up and down, comprises a control lever which one end portion is fixed to the pinion.

By installing the support roller rotatably on the side frame in contact with the opposite side of the pinion of the rack, it is possible to prevent the rack from shaking and maintain the vertical movement.

The pinion can also be configured using a gear, or can also be configured using a sprocket.

The rack may be configured using a straight gear, or may be configured by arranging the chain engaged with the sprocket in a straight line.

In the vertical plate of the hopper, it is also possible to install a scale plate that is displayed on a scale by a predetermined unit so that it is possible to check the rising height of the roller brush in accordance with the rotational position of the control lever.

When configured as described above, the pinion rotates as the adjustment lever is rotated, the rack engaged with the pinion moves linearly, the shaft of the roller brush connected to the rack moves up and down, between the roller brush and the hair brush box It is possible to adjust the spacing of.

The discharging device is installed on one end of the lower end of the vertical plate of the hopper and fixed to one end of the outer surface of the vertical plate of the operating shaft rotatably installed across the pair of vertical plates A rotary lever, a pair of support plates fixedly installed at both ends of the working shaft positioned inside the vertical plate, and extending toward the connecting plate, and integrally connecting end portions of the pair of support plates to each other; It includes an opening and closing plate which is installed in a erected state to open and close the gap with the conveyance belt.

The opening and closing plate can effectively cope with the bumpy surface of the soil moving along the conveying belt, it is also possible to install a plurality of screen brush to disperse the soil collected on one side.

The discharge control device configured as described above is the operating shaft is rotated by rotating the rotary lever, the opening and closing plate is connected to the operating shaft through the support plate is rotated, the bottom and the transfer belt of the opening and closing plate as the opening and closing plate is rotated The spacing between the top faces of is changed. Therefore, it is possible to control the amount of soil discharged through the transport belt is discharged.

According to the soil feeding apparatus for the hair growth box according to the present invention, as the pinion rotates and the combined rack moves according to the angular movement of the control lever, the roller brush is moved up and down, so that the vertical movement of the roller brush is quick. It's done easily.

And according to the soil feeding apparatus for the hair growth box according to the present invention, it is possible to easily set the exact height of the roller brush according to the height of the hair growth box or the height of the soil by operating the control lever while checking the scale table, it is very convenient .

According to the soil feeding apparatus for the hair growth box according to the present invention, since the discharge control device is installed, it is possible to easily adjust the discharge amount from the hopper by rotating the rotary lever.

Next, a preferred embodiment of the soil feeding apparatus for the hair growth box according to the present invention will be described in detail with reference to the drawings.

First, one embodiment of the soil feeding apparatus for the hair growth box according to the present invention, as shown in Figures 1 to 3, a pair of side frame 10, and a cylindrical hopper that is installed standing on the side frame 10 ( 20), the transport belt 30 is installed on the side frame 10 to be positioned below the hopper 20, and the side frame 10 to adjust the amount of soil dropped to the hair nursery (2) An apparatus for adjusting the discharge port 40 installed on the roller, the roller brush 50 installed on the side frame 10, the pinion 60 rotatably installed on the side frame 10, and the pinion. The physics includes a rack 70 and an adjustment lever 80 having one end fixed to the pinion 60.

In the above, the hair growth box 2 is moved through the separate conveyor belt (not shown) to the bottom of the transfer belt 30.

The pair of side frames 10 are installed long in the advancing direction of the hair growth box 2 at a predetermined interval (for example, the width of the hair growth box 2).

The hopper 20 is composed of a pair of vertical plates 22, connecting plates 24, 25.

The pair of vertical plates 22 are installed upright on the side frame 10, respectively.

Inside the hopper 20, a stirrer 28 for crushing the mass while uniformly stirring the soil contained therein across the vertical plate 22 is installed.

The connecting plates 24 and 25 are installed to connect across the pair of vertical plates 22.

The connecting plates 24 and 25 are installed before and after the advancing direction of the hair raising box 2.

The lower end portions of the connecting plates 24 and 25 are formed in an inclined surface inclined inward so that the soil contained therein is naturally configured to fall toward the transport belt 30.

In the above, the lower end of the connecting plate 24 which is installed in the rear of the running direction (left in Fig. 1) of the hair growth box 2 is formed and installed so as to be positioned at a predetermined distance from the upper surface of the transfer belt (30).

That is, the soil inside the hopper 20 is discharged and discharged toward the hair raising box 2 through the gap between the lower end of the connecting plate 24 and the upper surface of the transfer belt 30.

Specific configuration of the side frame 10, the hopper 20, the conveying belt 30, etc. can be carried out by applying the configuration disclosed in the Republic of Korea Utility Model Registration No. 20-0165459, etc., the operation method is also the same As such, detailed description is omitted.

In addition, the discharge control device 40 is installed in a space between the pair of vertical plates 22 and the outside of the connecting plate 24.

The discharge mechanism adjusting device 40 is installed to adjust the amount of soil to be dropped in the hair growth box (2) to move to the lower side of the transfer belt (30).

The discharging device 40 includes an operating shaft 42, a pair of support plates 44, an opening and closing plate 46, and a rotation lever 48.

The working shaft 42 is installed at one end of the lower end of the vertical plate 22 of the hopper 20.

The working shaft 42 is rotatably installed across the pair of vertical plates 22.

The rotary lever 48 is fixedly installed at one end of the outer surface of the vertical plate 22 of the operating shaft 42.

And, as shown in Figure 2, the vertical plate 22 of the side on which the rotary lever 48 is installed so that the opening degree (discharge of the soil) of the discharge port according to the angle of rotation of the rotary lever 48 can be easily confirmed. It is preferable to install the soil leveling plate 49 on which the scale is displayed.

The soil scale plate 49 is preferably configured to rotate the rotary lever 48 in accordance with the corresponding step according to the height of the soil contained in the standard and the size of the nursery box 2 by displaying the scale step by step.

For example, the scale of the soil scale plate 49 is set to adjust the height of the bottom surface of the opening and closing plate 46 in units of 1 to 5 mm corresponding to the height standard of the hair growth box 2 and the height of the soil contained therein. Display.

The pair of support plates 44 are fixedly installed at both ends of the operating shaft 42 located inside the vertical plate 22.

The pair of support plates 44 are formed to extend from the working shaft 42 toward the connecting plate 24.

The opening and closing plate 46 is installed by integrally connecting the ends of the pair of support plates 44 to each other.

The pair of supporting plates 44 and the opening / closing plate 46 installed as described above may form a substantially "C" shape.

The opening and closing plate 46 is installed in an upright position to open and close a gap between the connecting plate 24 and the transfer belt 30.

The opening and closing plate 46 can effectively cope with the bumpy surface of the soil moving along the transfer belt 30, and it is also possible to install a plurality of screen brushes 47 to disperse the soil collected on one side. Do.

The screen brush 47 focuses and installs a plurality of fibers of a material having a certain strength and elasticity so as not to bend easily when the soil is moved.

Next will be described the operation of the discharge control device 40 is configured as described above.

First, when the user grasps the rotary lever 48 and rotates clockwise as seen from the front (rotation lever 48 side) of FIG. 3, the operating shaft 42 rotates clockwise, and the operating shaft 42 The opening and closing plate 46 connected to the support plate 44 by the rotation in the clockwise direction.

When the opening and closing plate 46 rotates clockwise around the operating shaft 42 as described above, the bottom surface of the opening and closing plate 46 is far from the upper surface of the conveyance belt 30, the soil of the soil The amount will increase.

On the other hand, if the user grasps the rotary lever 48 and rotates counterclockwise as seen from the front of FIG. 3, the operating shaft 42 rotates counterclockwise, and the support plate 44 on the operating shaft 42. Opening and closing plate 46 connected through the counterclockwise rotation.

When the opening and closing plate 46 is rotated counterclockwise around the operating shaft 42 as described above, the bottom surface of the opening and closing plate 46 is close to the upper surface of the transfer belt 30, the soil to be disposed of The amount of is reduced.

As described above, as the opening and closing plate 46 is rotated about the operating shaft 42, the distance between the bottom surface of the opening and closing plate 46 and the upper surface of the conveyance belt 30 is changed. Therefore, it is possible to adjust the amount of the soil to move through the conveying belt 30 is discharged.

And the roller brush 50 is moved through the transfer belt 30 as described above and evenly spreads the soil dropped on the hair growth box (2).

A plurality of dispersion brushes 52 are installed on the circumferential surface of the roller brush 50.

The roller brush 50 includes a roller 54 formed in a cylindrical shape, and a dispersion brush 52 installed on the circumferential surface of the roller 54.

The dispersing brush 52 may be arranged in a straight line in the longitudinal direction of the roller 54, or may be provided in a "V" shape or a spiral shape with respect to the longitudinal direction of the roller 54. It is possible.

The dispersion brush 52 is installed by focusing a plurality of fibers of a material having a certain strength and elasticity so as not to bend easily when the soil is caught.

The roller brush 50 rotatably installs both ends of the shaft 56 on the side frame 10.

As shown in FIG. 3, the side frame 10 has a guide groove 13 formed to penetrate the shaft 56 of the roller brush 50 in a vertical direction.

The shaft 56 of the roller brush 50 moves up and down along the guide groove 13 by forming the guide groove 13 as described above and installing it through the shaft 56 of the roller brush 50. It becomes possible.

And the rack 70 is connected to the shaft 56 end of the roller brush 50 is installed.

The pinion 60 may be configured using a gear, or may be configured using a sprocket. In addition, the pinion 60 may be formed in a disk shape and installed, or may be formed in a semi-circular or fan-shaped plate shape. In general, since the range for adjusting the height of the roller brush 50 is not large, it is advantageous to form the pinion 60 in a semicircular or fan-shaped plate shape in terms of saving material and efficient utilization of installation space.

The rack 70 is preferably configured to correspond to the pinion 60. For example, the rack 70 may be configured using a straight gear, or may be configured by arranging the chain engaged with the sprocket in a straight line.

In the embodiment according to the present invention, the pinion 60 is composed of a semi-circular sprocket and the rack 70 is configured using a straight chain, but it is apparent that the present invention is not limited thereto. .

The rack 70 has a body 72 formed in a plate shape, a chain 74 installed on one side of the body 72 (a surface in contact with the pinion 60), and a lower end of the body 72. It is formed in the shaft brush portion of the roller brush 50, the shaft 56 is inserted and connected to the 76 is made.

The side frame 10 is rotatably mounted to the support roller 18 in a state in contact with the opposite surface of the pinion 60 of the rack 70.

By installing the support roller 18 as described above, the rack 70 is prevented from being pushed to the opposite side of the pinion 60 when the pinion 60 is rotated and a force is applied to the pin 74, and the rack ( The shaking of 70) is prevented and it becomes possible to keep the movement of the up and down constant.

The pinions 60 are installed in pairs on the outer surface of the pair of side frames 10 so as to be integrally rotated through the connecting shaft 62 installed across the pair of side frames 10. It is preferable because the shandong is smoothly made.

Therefore, the pinion 60, the rack 70, and the support rollers 18 are provided correspondingly one by one.

And, as shown in Figure 1, the vertical plate 22 of the hopper 20 in accordance with the rotational position of the control lever 80 in accordance with a predetermined unit so that it is possible to check the lifting height of the roller brush 50 It is also possible to provide a brush scale plate 88 in which the scale 89 is displayed.

For example, the scale 89 of the brush scale plate 88 adjusts the height of the bottom surface of the roller brush 50 in units of 1 to 5 mm corresponding to the height standard of the hair raising box 2 and the height of the soil contained therein. Set it to display.

Next, the process of adjusting the height of the roller brush 50 in the embodiment according to the present invention configured as described above will be described.

First, when the user grasps the control lever 80 and rotates clockwise as seen from the front (adjustment lever 80 side) of FIG. 1, the pinion 60 rotates clockwise and is engaged with the pinion 60. The rack 70 is linearly moved upwards.

When the rack 70 moves linearly as described above, the shaft 56 of the roller brush 50 is installed in the shaft connection portion 76 of the rack 70, so that the roller brush 50 is upward. Will be moved to, and the interval with the hair growth box (2) located at the bottom is increased.

On the other hand, when the user grasps the control lever 80 and rotates counterclockwise from the front of FIG. 1 (adjustment lever 80 side), the pinion 60 rotates counterclockwise, and the pinion 60 ) And the rack 70 engaged in the linear movement downward.

When the rack 70 moves linearly as described above, the shaft 56 of the roller brush 50 is installed in the shaft connection portion 76 of the rack 70, so that the roller brush 50 is lowered. Will be moved to, and the spacing with the hair growth box (2) located at the bottom is reduced.

By rotating the control lever 80 as described above it is possible to easily adjust the height of the roller brush 50, the roller brush to respond quickly according to the height of the nursery box (2) and the soil contained It is possible to adjust the spacing between the 50 and the hair raising box 2.

In the above description of the preferred embodiment of the soil feeding apparatus for the hair growth box according to the present invention, the present invention is not limited to this, and the claims and the detailed description of the invention and the accompanying drawings are carried out in various modifications within the scope. It is possible and this also belongs to the scope of the present invention.

1 is a perspective view showing a state as viewed from the control lever side an embodiment of the soil feeding device for the hair growth box according to the present invention.

Figure 2 is a perspective view showing a state as viewed from the rotary lever side an embodiment of the soil feeding apparatus for the hair growth box according to the present invention.

Figure 3 is a perspective view showing the decomposition of the hopper and the control lever and pinion and the rack in one embodiment of the soil feeding apparatus for the hair growth box according to the present invention.

Claims (10)

A pair of side frames which are installed at a predetermined distance in the advancing direction of the hair growth box and have guide grooves formed in the vertical direction, A cylindrical hopper consisting of a pair of vertical plates installed upright on the side frame and a pair of connecting plates installed by connecting the vertical plates in the front and rear direction of the hair growth box, A transfer belt installed on the side frame so as to be positioned below the hopper; And the discharge device is installed in the side frame to adjust the amount of soil to be dropped in the nursery box moving to the lower side of the conveying belt, A roller brush installed through the guide grooves of the pair of side frames and having a plurality of dispersion brushes installed on a circumferential surface thereof; A pinion rotatably installed on the side frame; A rack connected to the shaft end of the roller brush and engaged with the pinion to move up and down, Soil feeding apparatus for a hair growth box comprising a control lever fixed to one end is fixed to the pinion. The method according to claim 1, The side frame is a soil feeding device for the hair raising box for installing a support roller in a state in contact with the opposite surface of the pinion of the rack. The method according to claim 1, Soil feeding apparatus for a nursery box is installed on the vertical plate of the hopper is provided with a scale plate is displayed on a scale by a predetermined unit so that it is possible to check the height of the roller brush in accordance with the rotating position of the control lever. The method according to claim 1, The pinion is a soil feeding device for the hair growth box to form a semi-circular or fan-shaped plate shape. The method according to claim 1, The pinion is constructed using a sprocket, The rack is a soil supply apparatus for hair growth box configured using a chain. The method according to claim 5, The rack has a body formed in the shape of a plate, a chain installed on one side of the body, and the earth supply unit for a hair raising box including a shaft fixed part formed at the lower end of the body and the shaft of the roller brush is inserted and connected; . The method according to claim 1, The pinion and the rack are installed to correspond to each one of the pair of side frames, The pinion is a soil feeding device for the hair growth box is installed to rotate integrally through the connecting shaft is installed across the pair of side frames. The method according to claim 1, The discharging device is installed on one end of the lower end of the vertical plate of the hopper and fixed to one end of the outer surface of the vertical plate of the operating shaft rotatably installed across the pair of vertical plates A rotary lever, a pair of support plates fixedly installed at both ends of the working shaft positioned inside the vertical plate, and extending toward the connecting plate, and integrally connecting end portions of the pair of support plates to each other; Soil feeding apparatus for a hair growth box, including an opening and closing plate is installed to open and close the gap with the transport belt. The method according to claim 8, The opening and closing plate soil supply apparatus for hair raising box to install a plurality of screen brushes. The method according to claim 8, The soil feeder for the hair raising box to install a top plate on the vertical plate of the hopper on which the rotary lever is installed, the scale is displayed according to the rotation angle of the rotary lever.
KR1020090006915A 2009-01-29 2009-01-29 Soil supply device for seedling box KR20100087875A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101145481B1 (en) * 2011-10-11 2012-05-15 구기현 Structure for preventing of paving box with soil for sowing seed
KR20170143473A (en) * 2017-11-02 2017-12-29 정지현 Soil and seed supply apparatus for seedtime
KR102096219B1 (en) * 2019-12-30 2020-04-01 구진섭 Soil supply control member for soil covering apparatus
KR102115703B1 (en) * 2019-08-29 2020-05-26 구진섭 Easy adjustable operation for seeding machine
CN112119801A (en) * 2020-10-20 2020-12-25 浙江揭迪智能科技有限公司 Seedling cuttage device
CN113455373A (en) * 2021-07-09 2021-10-01 北京城农科工科技发展有限公司 Seedling pot supporting and soil falling device
CN114557238A (en) * 2022-03-02 2022-05-31 安徽重标建筑工程有限公司 Seedling planting process for landscaping

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101145481B1 (en) * 2011-10-11 2012-05-15 구기현 Structure for preventing of paving box with soil for sowing seed
KR20170143473A (en) * 2017-11-02 2017-12-29 정지현 Soil and seed supply apparatus for seedtime
KR102115703B1 (en) * 2019-08-29 2020-05-26 구진섭 Easy adjustable operation for seeding machine
KR102096219B1 (en) * 2019-12-30 2020-04-01 구진섭 Soil supply control member for soil covering apparatus
CN112119801A (en) * 2020-10-20 2020-12-25 浙江揭迪智能科技有限公司 Seedling cuttage device
CN113455373A (en) * 2021-07-09 2021-10-01 北京城农科工科技发展有限公司 Seedling pot supporting and soil falling device
CN113455373B (en) * 2021-07-09 2023-06-13 北京城农科工科技发展有限公司 Seedling pot supporting and soil-falling device
CN114557238A (en) * 2022-03-02 2022-05-31 安徽重标建筑工程有限公司 Seedling planting process for landscaping
CN114557238B (en) * 2022-03-02 2023-06-20 安徽重标建筑工程有限公司 Seedling planting technology for landscaping

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