CN112326365A - Sampling detection device for food processing - Google Patents
Sampling detection device for food processing Download PDFInfo
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- CN112326365A CN112326365A CN202011408273.1A CN202011408273A CN112326365A CN 112326365 A CN112326365 A CN 112326365A CN 202011408273 A CN202011408273 A CN 202011408273A CN 112326365 A CN112326365 A CN 112326365A
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- sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/18—Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/18—Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
- G01N2001/185—Conveyor of containers successively filled
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sampling detection device for food processing, which comprises a processing tank, wherein an installation box is arranged on one side of the processing tank, a piston cylinder is installed in the installation box, a piston block is connected to the inside of the piston cylinder in a sliding and sealing mode, a piston rod is connected to the piston block, the piston rod penetrates through the piston cylinder and is connected with a supporting block, the piston rod is connected with the piston cylinder in a sliding mode, one end, far away from the piston rod, of the piston cylinder is connected with a sampling pipeline, the sampling pipeline penetrates through the installation box and is connected with the processing tank, a sample outlet pipeline is connected to the lower side, close to one end of the sampling pipeline, of the piston cylinder, the lower side of the piston cylinder is connected with the sample outlet pipeline. The quantitative sampling drive mechanism adjusts the quantitative value to be sampled and is matched with the continuous collection mechanism to finish the continuous sampling of the liquid food, so that the quantitative sampling collection and the continuous sampling collection of the liquid food sampling detection can be realized, and the sampling efficiency and the detection accuracy are improved.
Description
Technical Field
The invention relates to the technical field of food detection, in particular to a sampling detection device for food processing.
Background
The food detection is to detect the content of substances in a video to check whether food meets the national food requirements, and many types of food detection devices are mainly used for detecting the content of substances in food and whether substances harmful to human bodies exist.
The device for detecting the nutrient content in the liquid food cannot carry out quantitative detection on the food in the detection of the food, and needs to carry out single sampling in the sampling process, so that the sampling is carried out for multiple times, the obtained liquid to be detected is respectively detected, the operation is more complicated, and therefore, the sampling detection device for food processing is provided to solve the problems.
Disclosure of Invention
The present invention is directed to a sampling and detecting device for food processing to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a sampling detection device for food processing comprises a processing tank, wherein an installation box is arranged on one side of the processing tank, a piston cylinder is installed in the installation box, a piston block is connected in the piston cylinder in a sliding and sealing mode, a piston rod is connected onto the piston block, the piston rod penetrates through the piston cylinder to be connected with a supporting block, the piston rod is connected with the piston cylinder in a sliding mode, one end, far away from the piston rod, of the piston cylinder is connected with a sampling pipeline, the sampling pipeline penetrates through the installation box to be connected with the processing tank, a sample outlet pipeline is connected to the lower side, close to one end of the sampling pipeline, of the piston cylinder, the lower side of the piston cylinder is connected with the sample outlet pipeline, the sample outlet pipeline penetrates through the lower end of the installation box, a continuous collection mechanism is arranged below the sample outlet pipeline, an exhaust pipe is connected to, quantitative sampling actuating mechanism with support a swing joint, the install bin lower extreme is provided with the controller, be provided with first solenoid valve in the sampling pipeline, be provided with the second solenoid valve in the play appearance pipeline, the controller respectively with sampling actuating mechanism, first solenoid valve and second solenoid valve electric connection.
As a further scheme of the invention: quantitative sampling actuating mechanism includes lead screw, positive and negative motor, electric putter, removes seat, contact response piece and shifting block, lead screw one end is rotated and is connected on the inner wall of install bin, and the other end runs through the lateral wall and the positive and negative motor transmission of install bin and is connected, install on the lead screw and remove the seat, remove the interior roof sliding connection of seat upper end install bin, it is fixed with two shifting blocks, two to remove the seat lower extreme with support the piece contact when removing and be connected, the lead screw top is provided with electric putter, contact response piece is installed to electric putter's expansion end, contact response piece and positive and negative motor respectively with controller electric connection.
As a further scheme of the invention: and a protective cover fixed on the outer side of the installation box is arranged on the outer side of the positive and negative motor.
As a further scheme of the invention: the front side of install bin is provided with the regulation window, the downside of regulation window is provided with the scale mark, the scale mark sets up with contact induction piece lower extreme parallel and level.
As a further scheme of the invention: the upper end of the moving seat is fixed with a sliding block, the inner top wall of the installation box is provided with a sliding groove, and the sliding block is in sliding fit with the sliding groove.
As a further scheme of the invention: the continuous collecting mechanism comprises a belt conveyor, a carrier, a sampling collecting bottle and an infrared transmitter, the belt conveyor is arranged below the sampling pipeline, the carrier is arranged on the belt conveyor, a placing groove is formed in the carrier, the sampling collecting bottle is arranged in the placing groove, and the infrared transmitter is embedded in the carrier.
As a further scheme of the invention: the lower extreme of install bin is provided with the infrared receiver corresponding with infrared emitter, infrared receiver and belt conveyor respectively with controller electric connection.
As a further scheme of the invention: the upper end of the belt conveyor is provided with a baffle.
Compared with the prior art, the invention has the beneficial effects that: firstly, a quantitative sampling driving mechanism is arranged for adjusting a quantitative value to be sampled and is matched with a continuous collecting mechanism to finish continuous sampling of liquid food, the quantitative sampling driving mechanism can drive a butting block to horizontally reciprocate, when the butting block drives a piston rod to move outwards, a controller opens a first electromagnetic valve and closes a second electromagnetic valve simultaneously, the piston rod drives a piston block to move outwards when moving outwards, suction force is generated to pump the liquid food in a processing tank into a piston cylinder through a sampling pipeline, when the quantitative sampling driving mechanism is adjusted to a specified position, the controller controls the quantitative sampling driving mechanism to enable the butting block to drive the piston rod to move inwards, the controller opens the second electromagnetic valve and closes the first electromagnetic valve simultaneously, when the piston rod moves inwards, the piston block drives the piston block to extrude the liquid food into the continuous collecting mechanism through a sample outlet pipeline, and the designated position is the quantitative position of sampling, thereby realizing quantitative sampling collection and continuous sampling collection of liquid food sampling detection, and improving sampling efficiency and detection accuracy.
Drawings
Fig. 1 is a schematic structural diagram of a sampling detection device for food processing.
Fig. 2 is a schematic view of the internal structure of a piston cylinder in a sampling detection device for food processing.
Fig. 3 is a schematic view of an external structure of a mounting box in the sampling inspection device for food processing.
Fig. 4 is a schematic structural diagram of a carrier in a sampling detection device for food processing.
In the figure: 1-processing tank, 2-sampling pipeline, 3-installation box, 4-piston cylinder, 5-piston block, 6-piston rod, 7-resisting block, 8-sampling pipeline, 9-controller, 10-first electromagnetic valve, 11-second electromagnetic valve, 12-exhaust pipe, 13-screw rod, 14-positive and negative motor, 15-moving seat, 16-electric push rod, 17-contact induction block, 18-sampling collecting bottle, 19-sliding block, 20-adjusting window, 21-scale line, 22-protective cover, 23-shifting block, 24-infrared receiver, 25-belt conveyor, 26-carrier, 261-placing groove, 27-infrared emitter and 28-baffle.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper end", "lower end", "above", "below", "inside", "front side", "inner top wall", "one end", "the other end", "outside", and the like indicate orientations or positional relationships based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "mounted," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, releasably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1:
with reference to fig. 1-3, a sampling detection device for food processing comprises a processing tank 1, wherein an installation box 3 is arranged on one side of the processing tank 1, a piston cylinder 4 is installed in the installation box 3, a piston block 5 is connected inside the piston cylinder 4 in a sliding and sealing manner, a piston rod 6 is connected onto the piston block 5, the piston rod 6 penetrates through the piston cylinder 4 and is connected with a support block 7, the piston rod 6 is connected with the piston cylinder 4 in a sliding manner, one end of the piston cylinder 4, which is far away from the piston rod 6, is connected with a sampling pipeline 2, the sampling pipeline 2 penetrates through the installation box 3 and is connected with the processing tank 1, a sampling pipeline 8 is connected to the lower side of one end, which is close to the sampling pipeline 2, of the piston cylinder 4, the sampling pipeline 8 penetrates through the lower end of the installation box 3, a continuous collection mechanism is arranged below the sampling pipeline 8, and an, the exhaust pipe 12 runs through the setting of 3 lower extremes of install bin, install quantitative sampling actuating mechanism on the install bin 3, quantitative sampling actuating mechanism with support 7 swing joint, the 3 lower extremes of install bin is provided with controller 9, be provided with first solenoid valve 10 in the sampling pipeline 2, be provided with second solenoid valve 11 in the play appearance pipeline 8, controller 9 respectively with sampling actuating mechanism, first solenoid valve 10 and 11 electric connection of second solenoid valve.
Specifically, the quantitative sampling driving mechanism is arranged for adjusting a quantitative value to be sampled and is matched with the continuous collecting mechanism to finish continuous sampling of liquid food, the quantitative sampling driving mechanism can drive the abutting block 7 to horizontally reciprocate, when the abutting block 7 drives the piston rod 6 to move outwards, the controller 9 opens the first electromagnetic valve 10 and closes the second electromagnetic valve 11 simultaneously, the piston rod 6 drives the piston block 5 to move outwards when moving outwards, suction force is generated to pump the liquid food in the processing tank 1 into the piston cylinder 4 through the sampling pipeline 2, when the quantitative sampling driving mechanism is adjusted to a specified position, the controller 9 controls the quantitative sampling driving mechanism to enable the abutting block 7 to drive the piston rod 6 to move inwards, the controller 9 opens the second electromagnetic valve 11 and closes the first electromagnetic valve 10 simultaneously, and the piston rod 6 drives the piston block 5 to move inwards when moving inwards, the piston block 5 extrudes the liquid food into the continuous collecting mechanism through the sample outlet pipeline 8, and the designated position is the sampling quantitative position, so that the quantitative sampling collection and the continuous sampling collection of the liquid food sampling detection are realized, and the sampling efficiency and the detection accuracy are improved.
The quantitative sampling driving mechanism comprises a screw rod 13, a positive and negative motor 14, an electric push rod 16, a moving seat 15, a contact induction block 17 and a shifting block 23, one end of the screw rod 13 is rotatably connected on the inner wall of the installation box 3, the other end of the screw rod penetrates through the side wall of the installation box 3 and is in transmission connection with a positive and negative motor 14, a moving seat 15 is arranged on the screw rod 13, the upper end of the moving seat 15 is slidably connected with the inner top wall of the box 3, two shifting blocks 23 are fixed at the lower end of the movable seat 15, the two shifting blocks 23 are in contact connection with the abutting block 7 when moving, an electric push rod 16 is arranged above the screw rod 13, a contact induction block 17 is arranged at the movable end of the electric push rod 16, the contact induction block 17 and the positive and negative motor 14 are respectively electrically connected with the controller 9, the front side of the installation box 3 is provided with an adjusting window 20, the lower side of the adjusting window 20 is provided with scale marks 21, and the scale marks 21 are arranged in parallel and level with the lower end of the contact induction block 17.
Concretely, adjust contact induction piece 17 to appointed scale mark 21 position through electric putter 16, and it is rotatory to drive lead screw 13 through positive and negative motor 14, and the sliding connection of cooperation removal seat 15 and install bin 3, make removal seat 15 at horizontal position reciprocating motion, remove seat 15 and drive shifting block 23 and remove, make shifting block 23 drive and support piece 7 and outwards move piston rod 6, liquid food in will processing jar 1 is taken out in piston cylinder 4, when removing seat 15 and contact induction piece 17 contact, control positive and negative motor 14 reverse rotation, make removal seat 15 drive shifting block 23 and remove, shifting block 23 drives and supports piece 7 and inwards move piston rod 6, liquid food in the piston cylinder 4 is sent to continuous collection mechanism, thereby realize quantitative sampling collection.
The positive and negative motor 14 outside is provided with fixes in the install bin 3 outside protection casing 22, sets up protection casing 22 and is used for protecting positive and negative motor 14.
The upper end of the moving seat 15 is fixed with a sliding block 19, the inner top wall of the installation box 3 is provided with a sliding groove, and the sliding block 19 is in sliding fit with the sliding groove and is in sliding fit with the sliding groove, so that the moving seat 15 moves smoothly and stably.
Example 2:
with reference to fig. 1 and 4, the present embodiment further defines the invention on the basis of embodiment 1.
Continuous collection mechanism includes belt conveyor 25, carrier 26, sampling receiving flask 18 and infra-red transmitter 27, belt conveyor 25 sets up the below at appearance pipeline 8, be provided with carrier 26 on the belt conveyor 25, the standing groove 261 has been seted up on the carrier 26, be provided with sampling receiving flask 18 in the standing groove 261, inlay on the carrier 26 and be equipped with infra-red transmitter 27, the lower extreme of install bin 3 is provided with the infra-red receiver 24 corresponding with infra-red transmitter 27, infra-red receiver 24 and belt conveyor 25 respectively with controller 9 electric connection.
Specifically, the belt conveyor 25 drives the carrier 26 to move, the carrier 26 drives the sampling collecting bottle 18 to move, when infrared rays emitted by the infrared emitter 27 are received by the infrared receiver 24 at the lower end of the installation box 3, signals are transmitted to the controller 9, the controller 9 stops the belt conveyor 25 to move, the sampling collecting bottle 18 is conveyed to the lower part of the sampling pipeline 2, and after the sampling collecting bottle 18 is collected, the controller 9 starts the belt conveyor 25 to convey samples away for detection, so that continuous sampling work is realized.
The upper end of the belt conveyor 25 is provided with a baffle 28 for facilitating the smooth movement of the carrier 26.
The working principle is as follows: firstly, a carrier 26 is driven to move by a belt conveyor 25, the carrier 26 drives a sampling collecting bottle 18 to move, when infrared rays emitted by an infrared emitter 27 are received by an infrared receiver 24 at the lower end of an installation box 3, a signal is transmitted to a controller 9, the controller 9 stops the movement of the belt conveyor 25, the sampling collecting bottle 18 is conveyed to the lower part of a sampling pipeline 2, a contact induction block 17 is adjusted to a position with an appointed scale mark 21 by an electric push rod 16, a lead screw 13 is driven to rotate by a positive and negative motor 14, and the moving seat 15 is matched with the sliding connection of the installation box 3, so that the moving seat 15 reciprocates at a horizontal position, the moving seat 15 drives a shifting block 23 to move, the shifting block 23 drives a resisting block 7 to move a piston rod 6 outwards, the first electromagnetic valve 10 is opened by the controller 9, the second electromagnetic valve 11 is closed at the same time, the piston rod 6 drives a piston block 5 to move outwards when moving outwards, the suction force is generated to draw the liquid food in the processing tank 1 into the piston cylinder 4 through the sampling pipeline 2, when the movable seat 15 contacts with the contact induction block 17, the control controls the positive and negative motor 14 to rotate reversely, so that the moving seat 15 drives the shifting block 23 to move, the shifting block 23 drives the abutting block 7 to move the piston rod 6 inwards, the controller 9 opens the second electromagnetic valve 11 and closes the first electromagnetic valve 10 at the same time, the piston rod 6 drives the piston block 5 to move inwards when moving inwards, so that the piston block 5 extrudes the liquid food into the sampling collecting bottle 18 through the sampling pipe 8, after the sampling collection bottle 18 finishes collecting, the controller 9 starts the belt conveyor 25 to convey the sample away for detection, the position of the designated scale mark 21 is the quantitative position for sampling, therefore, quantitative sampling collection and continuous sampling collection of liquid food sampling detection are realized, and sampling efficiency and detection accuracy are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a food processing is with sampling detection device, includes processing jar (1), its characterized in that, processing jar (1) one side is provided with install bin (3), install piston cylinder (4) in install bin (3), piston cylinder (4) inside sliding seal is connected with piston piece (5), be connected with piston rod (6) on piston piece (5), piston rod (6) run through piston cylinder (4) and are connected with supporting piece (7), and piston rod (6) and piston cylinder (4) sliding connection, piston cylinder (4) keep away from the one end of piston rod (6) and connect sampling pipeline (2), sampling pipeline (2) run through install bin (3) and are connected with processing jar (1), the downside that piston cylinder (4) is close to sampling pipeline (2) one end is connected with out appearance pipeline (8), it runs through install bin (3) lower extreme setting to go out appearance pipeline (8), go out appearance pipeline (8) below and be provided with continuous collection mechanism, the one end downside that piston cylinder (4) are close to piston rod (6) is connected with blast pipe (12), blast pipe (12) run through install bin (3) lower extreme setting, install ration sampling actuating mechanism on install bin (3), ration sampling actuating mechanism with support piece (7) swing joint, install bin (3) lower extreme is provided with controller (9), be provided with first solenoid valve (10) in sampling pipeline (2), be provided with second solenoid valve (11) in play appearance pipeline (8), controller (9) respectively with sampling actuating mechanism, first solenoid valve (10) and second solenoid valve (11) electric connection.
2. The sampling detection device for food processing according to claim 1, wherein the quantitative sampling driving mechanism comprises a screw rod (13), a positive and negative motor (14), an electric push rod (16), a moving seat (15), a contact sensing block (17) and a shifting block (23), one end of the screw rod (13) is rotatably connected to the inner wall of the installation box (3), the other end of the screw rod penetrates through the side wall of the installation box (3) to be in transmission connection with the positive and negative motor (14), the screw rod (13) is provided with the moving seat (15), the inner top wall of the installation box (3) at the upper end of the moving seat (15) is in sliding connection, the lower end of the moving seat (15) is fixed with two shifting blocks (23), the two shifting blocks (23) are in contact connection with the abutting block (7) when moving, the electric push rod (16) is arranged above the screw rod (13), and the movable end of the electric push rod (16) is provided with the contact sensing block (, the contact induction block (17) and the positive and negative motor (14) are respectively electrically connected with the controller (9).
3. The sampling and detecting device for food processing according to claim 2, characterized in that a protective cover (22) fixed on the outer side of the mounting box (3) is arranged on the outer side of the positive and negative motors (14).
4. The sampling detection device for food processing according to claim 3, characterized in that the front side of the installation box (3) is provided with an adjusting window (20), the lower side of the adjusting window (20) is provided with scale marks (21), and the scale marks (21) are arranged in parallel with the lower end of the contact induction block (17).
5. The sampling and detecting device for food processing according to claim 2, characterized in that a sliding block (19) is fixed on the upper end of the moving seat (15), a sliding groove is formed on the inner top wall of the mounting box (3), and the sliding block (19) is in sliding fit with the sliding groove.
6. The sampling detection device for food processing according to claim 1, wherein the continuous collecting mechanism comprises a belt conveyor (25), a carrier (26), a sampling collecting bottle (18) and an infrared emitter (27), the belt conveyor (25) is arranged below the sampling pipeline (8), the carrier (26) is arranged on the belt conveyor (25), a placing groove (261) is formed in the carrier (26), the sampling collecting bottle (18) is arranged in the placing groove (261), and the infrared emitter (27) is embedded in the carrier (26).
7. The sampling and detecting device for food processing according to claim 6, characterized in that the lower end of the mounting box (3) is provided with an infrared receiver (24) corresponding to the infrared emitter (27), and the infrared receiver (24) and the belt conveyor (25) are respectively electrically connected with the controller (9).
8. The sampling test device for food processing according to claim 6, characterized in that the upper end of the belt conveyor (25) is provided with a baffle (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408273.1A CN112326365A (en) | 2020-12-04 | 2020-12-04 | Sampling detection device for food processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408273.1A CN112326365A (en) | 2020-12-04 | 2020-12-04 | Sampling detection device for food processing |
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| Publication Number | Publication Date |
|---|---|
| CN112326365A true CN112326365A (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011408273.1A Withdrawn CN112326365A (en) | 2020-12-04 | 2020-12-04 | Sampling detection device for food processing |
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| CN (1) | CN112326365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715180A (en) * | 2023-07-10 | 2023-09-08 | 江苏威名新材料有限公司 | Energy-saving environment-friendly silicone weather-resistant glue separate-packaging filter device |
-
2020
- 2020-12-04 CN CN202011408273.1A patent/CN112326365A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715180A (en) * | 2023-07-10 | 2023-09-08 | 江苏威名新材料有限公司 | Energy-saving environment-friendly silicone weather-resistant glue separate-packaging filter device |
| CN116715180B (en) * | 2023-07-10 | 2024-01-02 | 江苏威名新材料有限公司 | Energy-saving environment-friendly silicone weather-resistant glue separate-packaging filter device |
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Application publication date: 20210205 |