CN203744923U - Depth detecting device of antenna in dual-interface card - Google Patents
Depth detecting device of antenna in dual-interface card Download PDFInfo
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- CN203744923U CN203744923U CN201420085270.2U CN201420085270U CN203744923U CN 203744923 U CN203744923 U CN 203744923U CN 201420085270 U CN201420085270 U CN 201420085270U CN 203744923 U CN203744923 U CN 203744923U
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- 238000003801 milling Methods 0.000 claims abstract description 120
- 238000001514 detection method Methods 0.000 claims description 35
- 238000009413 insulation Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 12
- 238000005553 drilling Methods 0.000 abstract 1
- 230000005570 vertical transmission Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a depth detecting device of an antenna in a dual-interface card. The depth detecting device comprises a milling mechanism and a vertical movement mechanism, wherein the milling mechanism comprises a milling cutter, a main shaft and a milling motor, the milling cutter is formed by combining a left half cutter and a right half cutter, the left half cutter and the right half cutter are mutually insulated and are respectively connected with one of two electrodes of a detecting circuit; and the vertical movement mechanism comprises a servo motor and a vertical transmission mechanism. The detecting method comprises the steps that: (1) the milling motor drives the main shaft and the milling cutter fixed on the main shaft to rotate, and the vertical movement mechanism drives the milling mechanism to move downwards for drilling holes; and (2) when the milling cutter touches the antenna arranged in the dual-interface card and mills off an insulating layer of the antenna, the left half cutter and the right half cutter are conducted through the antenna, the two electrodes of the detecting circuit are conducted, and the depth of the position is recorded. The depth detecting device can detect the antenna depth of each dual-interface card precisely, provides accurate data for the subsequent groove milling and wire pickup processing, and reduces rejection rate.
Description
Technical field
The utility model relates to the production method of double-interface card, is specifically related to a kind of depth detection apparatus of double-interface card internal antenna.
Background technology
Double-interface card based on single-chip, integrate the smart card of contact and non-contact interface, it has two operation interfaces, and the access to chip can be by the contact of the way of contact, also can, by separated by a distance, with RF-wise, visit chip.In the card of double-interface card, be provided with antenna and chip, wherein, antenna is by clamping in card, and chip is embedded in card and contact is exposed outside, and two of antenna is connected with chip; Induction by described antenna and card reader realizes noncontact Card Reader, and the contact by described chip contacts with card reader realizes contact Card Reader.
The main production run of double-interface card is: first by laminated mode, make the card of built-in aerial, wherein two of antenna ends are positioned at the same area, and chip is installed in this region in the future; Then groove milling in above-mentioned zone, can show the end of antenna; Then antenna is provoked, and be welded on chip; Finally by chip package in groove.In the groove milling technique of above-mentioned production run, because the degree of depth of antenna in different double-interface cards is incomplete same, so the degree of depth of groove milling must control well, and crossing deeply can be disconnected by antenna milling, spends shallow being difficult to antenna is provoked.In prior art, the double-interface card of same batch is all to carry out groove milling by a degree of depth of setting conventionally, if encounter the antenna degree of depth, crosses dark or excessively shallow double-interface card, can cause the appearance of waste product.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of depth detection apparatus of double-interface card internal antenna is provided, by this pick-up unit, can detect the antenna degree of depth of every double-interface card, thereby for follow-up groove milling operation provides definite groove milling take-up depth data, greatly reduce rejection rate.
Another object of the present utility model is to provide the depth detection method of the double-interface card internal antenna that a kind of depth detection apparatus of applying above-mentioned double-interface card internal antenna realizes.
The purpose of this utility model realizes by following technical scheme:
A depth detection apparatus for double-interface card internal antenna, is characterized in that, comprises milling mechanism and vertical motion mechanism, wherein:
Described milling mechanism comprises milling cutter, main shaft and milling motor, and wherein, described milling cutter is arranged on the lower end of main shaft, and this milling cutter is combined by left half cutter and right half cutter, and between left half cutter and right half cutter, mutually insulated is also connected with the two poles of the earth of testing circuit respectively;
Described vertical motion mechanism comprises servomotor and by the vertical gear train of this driven by servomotor, described milling mechanism is arranged on vertical gear train.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, described left half cutter is connected with the two poles of the earth of testing circuit by following structure respectively with right half cutter: described main shaft is provided with collector ring, this collector ring comprises the conducting ring of two mutually insulateds, and each conducting ring is connected by wire with one and half cuttves in right half cutter with left half cutter; Described main shaft is provided with the brush coordinating with described conducting ring outward, and this brush is connected with the two poles of the earth of testing circuit.By said structure, guarantee that left half cutter can be connected with testing circuit all the time with in right half cutter in rotation process, avoid main shaft to be wound around with the wire that right half cutter is connected with left half cutter in rotation process.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, the servomotor of described vertical motion mechanism is fixed in frame; Described vertical gear train comprises lead screw pair and vertical slide mechanism, wherein, described vertical slide mechanism comprises the slide rail being located in frame and the slide matching with this slide rail, and the leading screw in described lead screw pair is connected with the main shaft of servomotor, and feed screw nut is fixed on described slide; Described milling mechanism is arranged on slide.The vertical gear train that employing consists of above-mentioned lead screw pair and vertical slide mechanism, can drive slide to move up and down by lead screw pair by servomotor, thereby drive milling mechanism moves up and down, for the milling work of milling cutter provides feed motion.Because the position precision of servomotor is accurate, then carry out transmission in conjunction with the high lead screw pair of transmission accuracy, can accurately obtain the Bottom Runby of milling cutter.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, described main shaft is hollow structure, between the lower end of described milling cutter and main shaft, by chuck, is fixedly connected with nut.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, in described milling cutter, between left half cutter and right half cutter and outside is equipped with insulator.By this insulator is set, guarantee mutually insulated between left half cutter and right half cutter, by this insulator, connect milling cutter and chuck simultaneously.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, the upper end of described left half cutter and right half cutter is connected with respectively a chaining pin, and the upper end of this chaining pin is inserted in the chaining pin insulation sleeve being located in main shaft, and each chaining pin is connected with corresponding conducting ring by wire.The effect of above-mentioned chaining pin is to keep being connected with milling cutter, and then is connected with conducting ring by milling cutter by wire.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, described main shaft is arranged in spindle drum, is provided with bearing between the two; Described spindle drum is fixed on described slide; Described milling motor is fixed on electric machine support, and this electric machine support is fixedly connected with described spindle drum; Between described milling motor and main shaft, by belt gear, be connected.By said structure, realized being connected between milling mechanism and sliding seat, wherein, the effect of milling motor is to drive main shaft to rotate, and the kind of drive is between the two except being belt gear, can also gear drive or directly drive etc.
The depth detection apparatus of double-interface card internal antenna of the present utility model, wherein, the xsect semicircular in shape of described left half cutter and right half cutter.Such two and half cuttves are combined the columniform milling cutter of rear formation, are similar to common milling cutter construction.
A depth detection method of applying the double-interface card internal antenna that the depth detection apparatus of above-mentioned double-interface card internal antenna realizes, comprises the following steps:
(1) milling driven by motor main shaft and the milling cutter being fixed on main shaft rotate, and vertical motion mechanism drives milling mechanism to move down boring;
(2) milling mechanism moves down boring, when milling cutter encounter the built-in antenna of double-interface card and during by its insulation course mill off a left side half cutter of milling cutter and right half cutter by antenna conducting, the two poles of the earth conducting of testing circuit, vertical motion mechanism stops moving down immediately, and record this depth, for follow-up groove milling take-up technique provides depth data.
In the depth detection method of double-interface card internal antenna of the present utility model, in step (2), described milling cutter moves downward evenly and moves closer to antenna, once Contact antenna is connected after testing circuit, milling cutter stops moving downward.Can avoid like this antenna bad by milling cutter milling.
The principle of work of the depth detection apparatus of double-interface card internal antenna of the present utility model is: under the effect of the servomotor of vertical motion mechanism, a left side half cutter and right half cutter of mutually insulated move from top to bottom, simultaneously under the drive of milling motor, left half cutter and the right motion of partly making milling card material, when the degree of depth of milling tool reaches the degree of depth of antenna, left half cutter and the right side partly contact with a strip antenna wherein respectively, connect with the testing circuit of left half cutter and right half-connection, two detect cutter stops moving downward, now by calculating left half cutter, just can converse the degree of depth of antenna with the right distance partly moving downward, thereby for follow-up groove milling take-up technique provides depth of milled groove data.
The utility model compared with prior art has following beneficial effect:
Utilize depth detection apparatus of the present utility model can detect the antenna degree of depth of every double-interface card, the groove milling equipment of this device and subsequent technique is combined and formed groove milling production line, for each double-interface card, corresponding depth of milled groove of antenna Depth determination that groove milling equipment detects according to depth detection apparatus, make groove milling equipment can determine according to the actual grade of every double-interface card antenna the degree of depth of groove milling, thereby avoided depth of milled groove to cross deeply or cross phenomenon appearance shallow and that cause double-interface card to be scrapped.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-interface card.
Fig. 2 and Fig. 3 are the perspective view on two visual angles of an embodiment of depth detection apparatus of double-interface card internal antenna of the present utility model.
Fig. 4 is the structural representation (cut-open view) of milling mechanism part in Fig. 2 and Fig. 3 illustrated embodiment.
Fig. 5 is the end view of milling cutter in Fig. 4.
Fig. 6 is the electrical schematic diagram that Fig. 2 is connected with testing circuit with right half cutter with left half cutter in Fig. 3 illustrated embodiment.
Fig. 7～Fig. 9 is the depth detection apparatus of double-interface card internal antenna shown in application drawing 2 and Fig. 3 while carrying out the depth detection of double-interface card internal antenna, the process schematic diagram of double-interface card.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Referring to Fig. 1, in the body of double-interface card 1a, be provided with antenna 2a, the two-end part of this antenna 2a is in the same area 1-1a, this region 1-1a need to adopt groove milling equipment to carry out groove milling, after antenna 2 is milled out and is provoked, with chips welding, finally by chip package in groove.
Referring to Fig. 2～Fig. 5, the depth detection apparatus of double-interface card internal antenna of the present utility model comprises milling mechanism and vertical motion mechanism, and wherein, milling mechanism is arranged in vertical motion mechanism.
Referring to Fig. 2～Fig. 5, described vertical motion mechanism mainly consists of servomotor 2 and the vertical gear train that driven by this servomotor 2, and servomotor 2 drives vertical gear train to move up and down, thereby drives milling mechanism to do the feed motion of above-below direction.Wherein, described servomotor 2 is fixed in frame 1; Described vertical gear train comprises lead screw pair and vertical slide mechanism, wherein, vertical slide mechanism comprises two slide rails 4 that are located in frame 1 and the slide 3 matching with this slide rail 4, leading screw 14 in described lead screw pair is connected with the main shaft 11 of servomotor 2, and feed screw nut 15 is fixed on described slide 3.The lead screw pair that moves through of servomotor 2 main shafts drives slide 3 to do moving of above-below direction along slide rail 4.
Referring to Fig. 2～Fig. 5, described milling mechanism comprises milling cutter 10, main shaft 11 and milling motor 16, wherein, described milling cutter 10 is arranged on the lower end of main shaft 11, this milling cutter 10 is combined by left half cutter 10-1 and right half cutter 10-2, and between left half cutter 10-1 and right half cutter 10-2, mutually insulated is also connected with the two poles of the earth of testing circuit respectively.Described left half cutter 10-1 is connected with the two poles of the earth of testing circuit 24 by following structure respectively with right half cutter 10-2: the upper end of described main shaft 11 is provided with collector ring 12, this collector ring 12 comprises the conducting ring 12-1 of two mutually insulateds, and each conducting ring 12-1 is connected by wire with one and half cuttves in right half cutter 10-2 with left half cutter 10-1; Described main shaft 11 is outer is provided with the brush 13 coordinating with described conducting ring 12-1, and this brush 13 is connected with the two poles of the earth of testing circuit 24.By said structure, guarantee that left half cutter 10-1 can be connected with testing circuit 24 all the time with in right half cutter 10-2 in rotation process, avoid main shaft 11 to be wound around with the wire that right half cutter 10-2 is connected with left half cutter 10-1 in rotation process.
Referring to Fig. 2～Fig. 5, described main shaft 11 is hollow structure, and the syndeton between described milling cutter 10 and the lower end of main shaft 11 is: in the lower end of described main shaft 11, be provided with chuck 18, and the inside up/down perforation of this chuck 18, the upper end of outside surface is provided with male-tapered face; The inwall of the lower end of described main shaft 11 is arranged to the inner conical face that the male-tapered face with chuck 18 matches; The nut 17 that has been threaded on the outer wall of the lower end of described main shaft 11, is provided with interior back taper face in the lower end of this nut 17, the lower end of the outside surface of described chuck 18 be provided with nut 17 on the outer back taper face that matches of interior back taper face; Described milling cutter 10 is arranged in chuck 18, and the lower end of milling cutter 10 is stretched out chuck 18 downwards.In described milling cutter 10, the xsect semicircular in shape of left half cutter 10-1 and right half cutter 10-2, two and half cuttves are combined the columniform milling cutter 10 of rear formation; Between left half cutter 10-1 and right half cutter 10-2 and outside is equipped with insulator 19, thereby left half cutter 10-1 and right half cutter 10-2 are combined into one to formation milling cutter 10.The principle of work of above-mentioned syndeton is: the interior back taper face of nut 17 acts on the outer back taper face of chuck 18, impel chuck 18 to move upward, the cooperation of the male-tapered face of chuck 18 and the interior cylindrical face of main shaft 11 has limited the motion of chuck 18, thereby chuck 18 is locked on the lower end of main shaft 11; And then again milling cutter 10 is fixed in chuck 18, just completed being fixedly connected with between milling cutter 10 and main shaft 11.
Referring to Fig. 2～Fig. 5, the upper end of described left half cutter 10-1 and right half cutter 10-2 is connected with respectively a chaining pin 20, the lower end of this chaining pin 20 contacts with half cutter, the upper end of this chaining pin 20 is inserted in chaining pin 20 insulation sleeves 21 that are located in main shaft 11, and each chaining pin 20 is connected with corresponding conducting ring 12-1 by wire.The effect of above-mentioned chaining pin 20 is to keep being connected with milling cutter 10, and then is connected with conducting ring 12-1 by milling cutter 10 by wire.
Referring to Fig. 2～Fig. 5, described main shaft 11 is arranged in spindle drum 5, and the two ends up and down of main shaft 11 are provided with bearing 23, the outer bearing (ball) cover 22 that is provided with of bearing 23.Described spindle drum 5 is fixed on described slide 3.Described milling motor 16 is fixed on electric machine support 6, and this electric machine support 6 is fixedly connected with described spindle drum 5.Between described milling motor 16 and main shaft 11, by belt gear, be connected, this belt gear consists of driving pulley 7, belt 8 and driven pulley 9, wherein, driving pulley 7 is arranged on the main shaft 11 of milling motor 16, and driven pulley 9 is connected on main shaft 11.
Referring to Fig. 2～Fig. 5, described left half cutter 10-1 is connected with testing circuit 24 by chaining pin 20, wire, collector ring 12 and brush 13 respectively successively with right half cutter 10-2.
Referring to Fig. 2～Fig. 9, the depth detection method of the double-interface card internal antenna that the depth detection apparatus of the above-mentioned double-interface card internal antenna of application of the present utility model is realized, comprises the following steps:
(1) milling motor 16 drives main shaft 11 and is fixed on milling cutter 10 rotations on main shaft 11, and vertical motion mechanism drives milling mechanism to move down boring;
(2) milling mechanism moves down boring, when milling cutter 10 meet the built-in antenna 2a of double-interface card 1a and during by its insulation course mill off a left side half cutter 10-1 of milling cutter 10 and right half cutter 10-2 by antenna 2a conducting, the two poles of the earth conducting of testing circuit 24, vertical motion mechanism stops moving down immediately, control system calculates the distance that milling cutter 10 moves downward, thereby (computing method are: the descending total distance of milling cutter 10 deducts the distance of the descending front distance double-interface card of milling cutter 10 1a upper surface to calculate the degree of depth of double-interface card internal antenna, wherein, the distance of the descending front distance double-interface card of milling cutter 10 1a upper surface can be redefined for fixed value), the antenna depth data that control system detects this sends in follow-up groove milling equipment, groove milling equipment carries out groove milling processing according to these data to corresponding double-interface card 1a.
In step (2), described milling cutter 10 moves downward evenly and moves closer to antenna, once Contact antenna is connected after testing circuit 24, milling cutter 10 stops moving downward.Can avoid like this antenna bad by milling cutter 10 millings.
In said method, before examinations, utilize conveying mechanism double-interface card to be delivered to the below of depth detection apparatus, and allow antenna end in double-interface card be positioned at milling cutter 10 under; Described conveying mechanism is intermittent delivery mechanism, one by one smart card is sent into.
Referring to Fig. 7～Fig. 9, below in conjunction with accompanying drawing, the principle of work of the depth detection apparatus of double-interface card internal antenna of the present utility model is described: under the effect of the servomotor 2 of vertical motion mechanism, a left side half cutter 10-1 and the right half cutter 10-2 of mutually insulated move from top to bottom, simultaneously under the drive of milling motor 16, left half cutter 10-1 and the right motion of partly making milling card material, when the degree of depth of milling cutter 10 millings reaches the degree of depth of antenna, left half cutter 10-1 and the right side partly contact with a strip antenna wherein respectively, connect with the testing circuit 24 of left half cutter 10-1 and right half-connection, two detect cutter stops moving downward, now by calculating left half cutter 10-1, just can converse the degree of depth of antenna with the right distance partly moving downward, thereby for follow-up groove milling take-up technique provides depth of milled groove data.
Above-mentioned is preferably embodiment of the utility model; but embodiment of the present utility model is not subject to the restriction of foregoing; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (8)
1. a depth detection apparatus for double-interface card internal antenna, is characterized in that, comprises milling mechanism and vertical motion mechanism, wherein:
Described milling mechanism comprises milling cutter, main shaft and milling motor, and wherein, described milling cutter is arranged on the lower end of main shaft, and this milling cutter is combined by left half cutter and right half cutter, and between left half cutter and right half cutter, mutually insulated is also connected with the two poles of the earth of testing circuit respectively;
Described vertical motion mechanism comprises servomotor and by the vertical gear train of this driven by servomotor, described milling mechanism is arranged on vertical gear train.
2. the depth detection apparatus of double-interface card internal antenna according to claim 1, it is characterized in that, described left half cutter is connected with the two poles of the earth of testing circuit by following structure respectively with right half cutter: described main shaft is provided with collector ring, this collector ring comprises the conducting ring of two mutually insulateds, and each conducting ring is connected by wire with one and half cuttves in right half cutter with left half cutter; Described main shaft is provided with the brush coordinating with described conducting ring outward, and this brush is connected with the two poles of the earth of testing circuit.
3. the depth detection apparatus of double-interface card internal antenna according to claim 2, is characterized in that, the servomotor of described vertical motion mechanism is fixed in frame; Described vertical gear train comprises lead screw pair and vertical slide mechanism, wherein, described vertical slide mechanism comprises the slide rail being located in frame and the slide matching with this slide rail, and the leading screw in described lead screw pair is connected with the main shaft of servomotor, and feed screw nut is fixed on described slide; Described milling mechanism is arranged on slide.
4. the depth detection apparatus of double-interface card internal antenna according to claim 3, is characterized in that, described main shaft is hollow structure, between the lower end of described milling cutter and main shaft, by chuck, is fixedly connected with nut.
5. the depth detection apparatus of double-interface card internal antenna according to claim 4, is characterized in that, in described milling cutter, between left half cutter and right half cutter and outside is equipped with insulator.
6. the depth detection apparatus of double-interface card internal antenna according to claim 5, it is characterized in that, the upper end of described left half cutter and right half cutter is connected with respectively a chaining pin, the upper end of this chaining pin is inserted in the chaining pin insulation sleeve being located in main shaft, and each chaining pin is connected with corresponding conducting ring by wire.
7. the depth detection apparatus of double-interface card internal antenna according to claim 6, is characterized in that, described main shaft is arranged in spindle drum, is provided with bearing between the two; Described spindle drum is fixed on described slide; Described milling motor is fixed on electric machine support, and this electric machine support is fixedly connected with described spindle drum; Between described milling motor and main shaft, by belt gear, be connected.
8. according to the depth detection apparatus of the double-interface card internal antenna described in claim 1～7 any one, it is characterized in that the xsect semicircular in shape of described left half cutter and right half cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085270.2U CN203744923U (en) | 2014-02-26 | 2014-02-26 | Depth detecting device of antenna in dual-interface card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085270.2U CN203744923U (en) | 2014-02-26 | 2014-02-26 | Depth detecting device of antenna in dual-interface card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203744923U true CN203744923U (en) | 2014-07-30 |
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ID=51344711
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085270.2U Expired - Lifetime CN203744923U (en) | 2014-02-26 | 2014-02-26 | Depth detecting device of antenna in dual-interface card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203744923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791808A (en) * | 2014-02-26 | 2014-05-14 | 广州市明森机电设备有限公司 | Depth detecting device and method for antenna in double-interface card |
| CN109186449A (en) * | 2018-10-25 | 2019-01-11 | 广州明森合兴科技有限公司 | A kind of depth detection method of double-interface smart card internal antenna |
-
2014
- 2014-02-26 CN CN201420085270.2U patent/CN203744923U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791808A (en) * | 2014-02-26 | 2014-05-14 | 广州市明森机电设备有限公司 | Depth detecting device and method for antenna in double-interface card |
| CN103791808B (en) * | 2014-02-26 | 2017-02-15 | 广州明森科技股份有限公司 | Depth detecting device and method for antenna in double-interface card |
| CN109186449A (en) * | 2018-10-25 | 2019-01-11 | 广州明森合兴科技有限公司 | A kind of depth detection method of double-interface smart card internal antenna |
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Address after: 510000 tissue culture building, No. 500, Guang Shan Road, Tianhe District, Guangdong, Guangzhou, China (3) Patentee after: GUANGZHOU MINGSEN MECH.&ELEC. EQUIPMENT CO., LTD. Address before: 510640 Guangdong Province, Guangzhou Tianhe District, No. 87 ban 1 floor, 2 floor Patentee before: Guangzhou Mingsen Mech. & Elec. Equipment Co.,Ltd. |