CN1024078C - Method for making photographic sand carving pattern on surface of hard material and appratus thereof - Google Patents

Method for making photographic sand carving pattern on surface of hard material and appratus thereof Download PDF

Info

Publication number
CN1024078C
CN1024078C CN 92104846 CN92104846A CN1024078C CN 1024078 C CN1024078 C CN 1024078C CN 92104846 CN92104846 CN 92104846 CN 92104846 A CN92104846 A CN 92104846A CN 1024078 C CN1024078 C CN 1024078C
Authority
CN
China
Prior art keywords
sand
hard material
carved
carving
plasticity
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.)
Expired - Fee Related
Application number
CN 92104846
Other languages
Chinese (zh)
Other versions
CN1068062A (en
Inventor
袁树森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staff Technology Association Of Institute Of Semiconductors Chinese Academy Of Sciences
Original Assignee
Staff Technology Association Of Institute Of Semiconductors Chinese Academy Of Sciences
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Staff Technology Association Of Institute Of Semiconductors Chinese Academy Of Sciences filed Critical Staff Technology Association Of Institute Of Semiconductors Chinese Academy Of Sciences
Priority to CN 92104846 priority Critical patent/CN1024078C/en
Publication of CN1068062A publication Critical patent/CN1068062A/en
Application granted granted Critical
Publication of CN1024078C publication Critical patent/CN1024078C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention relates to a method for making photographic sand carving patterns on the surfaces of hard materials and equipment thereof. A mixed jet flow with high pressure air and emery is used for spraying and carving regions to be carved of the surfaces to be carved under the masking on regions which do not need to be carved by plastic protective layers. The hard materials are marble, glass, ceramics and metals. The equipment for making the photographic sand carving patterns on the surfaces of the hard materials comprises a system for forming the high speed rotating jet flow of the high pressure air and the emery, and the system comprises a sand carving pattern sand carving box, a sand carving waste gas extraction purifier, an air compressor and a spraying gun, wherein the spraying gun is at least provided with an air inlet, a sand inlet and a spray nozzle. Products are lifelike, and the work efficiency is improved by tens of times.

Description

Method for making photographic sand carving pattern on surface of hard material and appratus thereof
The present invention relates to a kind of method and apparatus of chiseling pattern, particularly relate to a kind of rotation mixing jet that adopts pressure-air to add diamond dust, under the sheltering of plasticity pattern protective layer, hard material is carried out the method for depiction and used equipment thereof.
In recent years; machining field at printing, semiconductor devices; developed a kind of photoetching technique; announced a kind of photoetching process as CN86103644A; be included in substrate spin coating protective layer; and mask graph transferred on the protective layer then expose, figure is exposed the back and forms this figure on substrate.Its figure on substrate is the planar graph that obtains by development, and this figure all also comes with some shortcomings aspect the degree true to nature and decorative aesthetics of durability, image.
Aspect the equipment of photoetching technique use, CN86107270 discloses and a kind of photomask has been applied at on-chip device, it applies photomask on substrate with roller, uses with the vacuum restraint device and limit photomask in the process of photomask being applied at substrate, makes it keep tension force.It exposes the photomask image on photosensitive receiving element, this photosensitive receiving element contacts with the photomask that has image in impression frame or similar device, and under special light sources, expose, and a kind of positioner disclosed, be that 50 roller comes and goes on the photomask surface and moves with rubber scraper or hardness then, atmospheric pressure makes photomask and photopolymer surface keep closely contacting, and copies photomask pattern clearly.According to the method and equipment, the figure that draws is copy pattern rather than solid figure, is difficult to reach the artistic effect of ornament.
The purpose of this invention is to provide and a kind ofly hard material is carried out the process of making photographic sand carving what camera technique and jet sand technology for fast carving on combined dexterously.
Another object of the present invention provides a kind of equipment that carries out making photographic sand carving on hard material that is applicable to.
The object of the present invention is achieved like this: a kind of method of making photographic sand carving hard material surface; it is characterized in that: at the plasticity protective layer to not carving under the sheltering at position; the mixing jet that adds diamond dust with pressure-air; treat the position to be carved of sculpture surface and spray engraving, this method comprises:
1) cleans the cleaning on the smooth surface for the treatment of depiction of said hard material with known method;
2) by one deck pressure sensitive membrane at least is set on the surface for the treatment of depiction at hard material, on pressure sensitive membrane, apply the photosensitive glue-line of plasticity then, the mask base plate contact that its pattern is opposite with the original work pattern of desire engraving covers on the photosensitive glue-line of plasticity, with ultraviolet light or visible light under the sheltering of mask base plate, the photosensitive glue-line of plasticity is exposed, the photosensitive glue-line of property after exposing is developed, clean, from treating that sculpture surface removes the photosensitive glue-line of plasticity that the position is promptly waited to carve in unexposed position, expose position to be carved coated with the adhesive sticker mould, stay the position of exposing and promptly must not carve the photosensitive glue-line of plasticity at position, form the pattern transfering process that its pattern plasticity light-sensitive emulsion protective layer consistent with original work formed;
3) carve the rotation mixing jet that adds diamond dust in the case with pressure-air at sand, the technology that engraving is sprayed at sculpture surface position to be carved for the treatment of to adhesive sticker and following hard material thereof, the pressure of described pressure-air is 6~8 atmospheric pressure, and flow is at 1~1.5 cubic metre/minute;
4) throw off pressure sensitive membrane and plasticity protective layer on the hard material surface, remove the diamond dust dust, carved the hard material dust that falls, and clean whole by the technology of carved piece;
5) carry out painted technology at last.
The said hard material of being carved by sand is a marble.The said hard material of being carved by sand is a glass.The said hard material of being carved by sand is a kind of metal.The pattern of used mask base plate is consistent positive plate with the original work pattern of desire engraving, and the pattern of finishing of its sand carving is opposite with the original work pattern.
A kind of equipment of making photographic sand carving hard material surface, the sand carving case that comprises a sand engraving patterns, the extraction of engraving waste gas, a purifier that becomes with the dedusting group by air exhauster, a jet forms system, it is characterized in that: be provided with one at least in the sand carving case and bear the supporting plate (8) for the treatment of carved piece, an ejecting gun that is arranged on supporting plate top sidewall inserts mouth, and is arranged on the bleeding point (10) that the supporting plate upper wall is extracted engraving waste gas out, at the bottom of the sand carving case of supporting plate below metal sand catch tray (20) is set; Jet forms system and is made up of air compressor machine and ejecting gun (6), ejecting gun (6) inserts mouth by aforementioned ejecting gun and stretches into sand carving case and wind, the two-way entrance point of sand (5), (7) are set, nozzle (21), this sand inlet (7), flexible sand delivering pipeline (17), diamond dust catch tray (20) are the peripheral passage; The pressure-air of air compressor machine (1) output, enter ejecting gun from air inlet (5), pressure-air mixes in nozzle (21) with the diamond dust two media, move freely or two-dimentional at least moving by screw shell (24) formation rotation mixing jet and in the top of sand carving case supporting plate (8), scan whole supporting plates (8).
The present invention has following characteristics:
1. to the unified making photographic sand carving that adopts of different hardness material, grasp easily.
2. technology is simple, avoids harmless to the Environmental Chemistry corrosion contamination, and diamond dust can be recycled.
3. carving efficiency can improve tens of times, is suitable for suitability for industrialized production.
Figure 1A is a sand technology for fast carving on process chart.
Figure 1B is the profile of the technological process of explanation Figure 1A.
Fig. 2 is sand carving device systems figure.
Fig. 3 is sand carving box structure schematic diagram.
Fig. 4 is the spray gun structure schematic diagram.
Fig. 5 is a spray gun rubber blanket schematic diagram.
Fig. 6 A is fixed cover cuff and rifle body snap ring connection diagram.
Fig. 6 B is the fixed cover schematic top plan view.
Fig. 7 A is the nozzle structural representation.
Fig. 7 B is a nozzle B-B generalized section.
Below in conjunction with accompanying drawing photograph sand accent method of the present invention and equipment thereof are elaborated.
Referring to Fig. 1, at first clean hard material 801 with known method, such as the surface of the smooth pattern to be carved of marble, granite, glass, pottery and metal. One deck double faced adhesive tape or adhesive sticker 802 are set on the surface of hard material pattern to be carved then, and then the photosensitive glue-line 803 of coating plasticity, mask base plate (black and white soft negative) 804 contacts that its pattern is opposite with the pattern of wish engraving cover on the photosensitive glue-line 803 of plasticity again, with ultraviolet light or visible light 805 under the sheltering of mask base plate 804, the photosensitive glue-line 803 of plasticity was exposed 8~10 minutes, develop then, clean. Remove the photosensitive glue-line 803b of unexposed plasticity of top, position to be carved from surface to be carved, expose the position 801b to be carved coated with adhesive sticker, stay the photosensitive glue-line 803a of the plasticity of having exposed, the hard material 801a that must not carve the position to the below with the plasticity of this glue-line plays masking action, and hard material 801a is not carved by sand. Form the pattern protective layer 803 consistent with original work, the mixing rotating jet 806 that adds diamond dust with pressure-air in sand carving case to pressure sensitive membrane and below the position 801b to be carved on surface to be carved of hard material 801 carry out the sand carving.
Can reach 2mm to the Dali stone sand carving per minute sand carving degree of depth;
Can reach 2mm to the granite sand carving per minute sand carving degree of depth;
Can reach 3mm to the glass sand carving per minute sand carving degree of depth;
Can reach 3mm to the ceramic sand carving per minute sand carving degree of depth;
Can reach 1mm to the steel sand carving per minute sand carving degree of depth;
The high speed high pressure rotating air adds the diamond dust mixing jet and is penetrated by the spray gun nozzle, spray gun (nozzle) 6 can be free on whole surperficial 801a to be carved and 801b two-dimensional movement at least, scanning is figure all Case. The sand carving of finishing patterns obtains the hard material pattern 901 that sand is carved, and is last, removes pressure sensitive membrane and plasticity pattern protective layer 803a, clean to fall in the sand carving process to be attached to pattern sand dust everywhere, and the hard material dust, and then newspaper is according to the original work colour coloring.
Adopting the plasticity light-sensitive emulsion of doing protective layer 803 among the present invention is the molten three second copolymer nylons of alcohol, and developer solution is the glue-like feeling luminescent material of ethanol 85%(or Printing Tech Research Office, Beijing).
Mask base plate 804 of the present invention is the negative plates of the soft black and white negative film of thin base of usefulness of usually taking a picture. (this egative film can according to the pattern needs, be made positive plate)
Referring to Fig. 2: air is compressed at air compressor 1, purify by filter 2 then, again through playing the magnetic valve 3 of on-off action, the air inlet 5 that is connected to ejecting gun enters ejecting gun, diamond dust is sucked spray gun by sand inlet 7 by air-negative-pressure to be mixed with air, and ejecting gun puts in sand carving case by the ejecting gun socket. To be put on the supporting plate with the hard material for the treatment of the sand carving of pattern protective layer from the working window 11 of sand carving case, hand is stretched into hole 16 with the rubber gum cover, mobile ejecting gun 6 as required, whole process can be observed from observation window 9. Window for subsequent use 12 is for temporarily when long such as workpiece (, can insert from here) for subsequent use, during operation with window 12 for subsequent use and hole 16 hermetically closings. By Pressure gauge 4 supervision work pressure. Work waste gas is 10 discharges from the gas outlet; for environmental protection, purify and reclaim useful material, establish dedusting cabinet 14 with the junction of gas outlet 10; the tilting foam block 13 of the upside of cabinet blocks fine sand or dust falls into dedusting cabinet 14 bottoms, and the air after the purification is extracted out with blower fan (250 watts) 15.
Confirm that by test adopt a kind of air dielectric in ejecting gun 6, its operating pressure need to reach 20~30 atmospheric air-flows, just can obtain stable carved figure, so high pressure except increase expense on technology, also can make image edge unintelligible. So the present invention adopts two media in ejecting gun, namely air adds diamond dust. They can be down to operating air pressure 6~8 atmospheric pressure, and carved figure is clear, high efficiency.
Referring to Fig. 3: high pressure draught from air inlet with enter ejecting gun 6 by flexible input channel; mix with the diamond dust that leans on negative pressure by sand inlet 7 suctions from sand delivering pipeline 17; air with ejection adds diamond dust rotation mixing jet; the hard material under the pattern diaphragm is sheltered that is placed on the supporting plate 8 is carried out the sand carving; ejecting gun 6 can move back and forth above supporting plate; shown in dotted line; dust in sand carving process flows to dedusting cabinet 14 by the outlet 10 of upper cover 18; slightly bulky grain diamond dust is carved case gap all around by pallet 8 and sand and is flowed into collection sand mouth 20 by lower cover 19, again enters the ejecting gun participation by diamond dust import 7 by flexible sand-feeding tube road 17 and circulates.
Pallet in control box can be obliquely installed.
Referring to Fig. 4~6A, B: ejecting gun is from air inlet 5 input pressure-airs, from flexible sand delivering pipeline input diamond dust, two kinds of media mix at the inwall of ejecting gun 6, between ejecting gun rifle body 23 and the nozzle 21, filling rubber stopper 22, be threaded with rifle body 23 with fixed cover 25 1 ends, in addition end and nozzle 21 tight fits.At the interlude of nozzle, establish screw shell 24.This screw shell 24 can make the air of mixing and diamond dust medium form swirling eddy and produce acceleration.The chuck 26 of rubber stopper 22 is connected at screw thread 28 places with the cuff 27 of fixed cover 25.
Referring to Fig. 7: in order to strengthen jet pressure, increase work efficiency, the ejecting gun nozzle has been done the emphasis transformation, and promptly a screw shell 24 is made with flexible material in the middle part in nozzle, and this screw shell 24 can make the air of mixing and diamond dust medium form swirling eddy and produce acceleration.
The air compressor output flow is 1~1.5 cubic metre/minute, and power of fan 250W regulates the sand carving time, can control carving depth, and its maximum carving depth can reach 8mm.
Below by embodiment various hard materials are elaborated:
Embodiment 1:
One. clean marble surface to be carved;
Two. paste one deck pressure sensitive membrane in cleaned marble surface;
Three. the photosensitive glue-line of the coating plasticity molten terpolyamide of alcohol on pressure sensitive membrane;
Four. the mask base plate that forms by film mechanical is placed on the photosensitive glue-line;
Five. use ultraviolet photoetching 10 minutes;
Six. develop with ethanol 85%, clean, dry with wet water;
Seven. add diamond dust mixing jet engraving 1 minute with 7 atmospheric air, form figure, the degree of depth can reach 2mm;
Eight. throw off pressure sensitive membrane and photosensitive glue-line.
Nine. cleaning, painted.
Embodiment 2:
One. clean glass surface to be carved;
Two. on cleaned glass surface, paste one deck pressure sensitive membrane;
Three. the photosensitive glue-line of the coating plasticity molten terpolyamide of alcohol on pressure sensitive membrane;
Four. the mask plate that forms by photomechanical production is placed on the photosensitive glue-line;
Five. use ultraviolet photoetching 10 minutes;
Six. develop with ethanol 85%, clean, dry with wet water;
Seven. the mixing jet that adds diamond dust with 6 atmospheric air was carved 1 minute, formed figure, and the degree of depth reaches 3mm;
Eight. throw off pressure sensitive membrane and photosensitive glue-line;
Nine. cleaning, painted.
Embodiment 3:
One. clean metal (tool steel) surface;
Two. on cleaned metal surface, paste one deck pressure sensitive membrane;
Three. the photosensitive glue-line of the coating plasticity molten terpolyamide of alcohol on pressure sensitive membrane;
Four. the mask plate that forms by photomechanical production is placed on the photosensitive glue-line;
Five. use ultraviolet photoetching 10 minutes;
Six. develop with ethanol 85%, clean, dry with wet water;
Seven. the mixing jet that adds diamond dust with 8 atmospheric air was carved 1 minute, formed figure, and the degree of depth reaches 1mm;
Eight. throw off pressure sensitive membrane and photosensitive glue-line;
Nine. cleaning, painted.
The above-mentioned embodiment that enumerates is intended to the present invention is done detailed description, but the present invention is not subjected to the restriction of embodiment.Be not limited to materials such as marble, granite, pottery, glass, metal as said hard material, other hard material all belongs to protection scope of the present invention.

Claims (6)

1, a kind of method of making photographic sand carving hard material surface is characterized in that: to must not carving under the sheltering at position, add the mixing jet of diamond dust with pressure-air at the plasticity protective layer, treat the position to be carved of sculpture surface and spray engraving, this method comprises:
1) cleans the cleaning on the smooth surface for the treatment of depiction of said hard material with known method;
2) by one deck pressure sensitive membrane at least is set on the surface for the treatment of depiction at hard material, on pressure sensitive membrane, apply the photosensitive glue-line of plasticity then, the mask base plate contact that its pattern is opposite with the original work pattern of desire engraving covers on the photosensitive glue-line of plasticity, with ultraviolet light or visible light under the sheltering of mask base plate, the photosensitive glue-line of plasticity is exposed, the photosensitive glue-line of plasticity after exposing is developed, clean, from treating that sculpture surface removes the photosensitive glue-line of plasticity that the position is promptly waited to carve in unexposed position, expose position to be carved coated with the adhesive sticker mould, stay the position of exposing and promptly must not carve the photosensitive glue-line of plasticity at position, form the pattern transfering process that its pattern plasticity light-sensitive emulsion protective layer consistent with original work formed;
3) carve the rotation mixing jet that adds diamond dust in the case with pressure-air at sand, the technology that engraving is sprayed at sculpture surface position to be carved for the treatment of to adhesive sticker and following hard material thereof, the pressure of described pressure-air is 6~8 atmospheric pressure, and flow is at 1~1.5 cubic metre/minute;
4) throw off pressure sensitive membrane and plasticity protective layer on the hard material surface, remove metal sand dust, carved the hard material dust that falls, and clean whole by the technology of carved piece;
5) carry out painted technology at last.
2, the method for making photographic sand carving hard material surface as claimed in claim 1 is characterized in that: the said hard material of being carved by sand is a marble.
3, the method for making photographic sand carving hard material surface as claimed in claim 1 is characterized in that: the said hard material of being carved by sand is a glass.
4, the method for making photographic sand carving hard material surface as claimed in claim 1 is characterized in that: the said hard material of being carved by sand is a kind of metal.
5, the method for making photographic sand carving hard material surface as claimed in claim 1 is characterized in that: the pattern of used mask base plate is consistent positive plate with the original work pattern of desire engraving, and the pattern of finishing of its sand carving is opposite with the original work pattern.
6, a kind of equipment of making photographic sand carving hard material surface, the sand carving case that comprises a sand engraving patterns, the extraction of engraving waste gas, a purifier that becomes with the dedusting group by air exhauster, a jet forms system, it is characterized in that: be provided with one at least in the sand carving case and bear the supporting plate (8) for the treatment of carved piece, an ejecting gun that is arranged on supporting plate top sidewall inserts mouth, and be arranged on the bleeding point (10) that the supporting plate upper wall is extracted engraving waste gas out, at the bottom of the sand carving case of supporting plate below diamond dust catch tray (20) is set; Jet forms system and is made up of air compressor machine and ejecting gun (6), ejecting gun (6) inserts mouth by aforementioned ejecting gun and stretches into sand carving case and wind, the two-way entrance point of sand (5), (7) are set, nozzle (21), this sand inlet (7), flexible sand delivering pipeline (17), diamond dust catch tray (20) are the peripheral passage; The pressure-air of air compressor machine (1) output, enter ejecting gun from air inlet (5), pressure-air mixes in nozzle (21) with the diamond dust two media, move freely or two-dimentional at least moving by screw shell (24) formation rotation mixing jet and in the top of sand carving case supporting plate (8), scan whole supporting plates (8).
CN 92104846 1992-06-25 1992-06-25 Method for making photographic sand carving pattern on surface of hard material and appratus thereof Expired - Fee Related CN1024078C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92104846 CN1024078C (en) 1992-06-25 1992-06-25 Method for making photographic sand carving pattern on surface of hard material and appratus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 92104846 CN1024078C (en) 1992-06-25 1992-06-25 Method for making photographic sand carving pattern on surface of hard material and appratus thereof

Publications (2)

Publication Number Publication Date
CN1068062A CN1068062A (en) 1993-01-20
CN1024078C true CN1024078C (en) 1994-03-23

Family

ID=4941031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 92104846 Expired - Fee Related CN1024078C (en) 1992-06-25 1992-06-25 Method for making photographic sand carving pattern on surface of hard material and appratus thereof

Country Status (1)

Country Link
CN (1) CN1024078C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102380829B (en) * 2010-08-31 2015-11-18 鸿富锦精密工业(深圳)有限公司 The method of sand blasting unit and formation pattern
CN102490124A (en) * 2012-01-04 2012-06-13 周晓辉 Method for cutting forming or intaglio forming of hard and brittle object
CN103358793B (en) * 2012-04-10 2016-01-27 北京市东城区科学技术委员会 A kind of drawing information generating method for opening up blue technique
CN102632460A (en) * 2012-04-18 2012-08-15 邓耀辉 Manufacturing method for cover glass lens
CN102672619A (en) * 2012-05-18 2012-09-19 林承平 Accessory used for decorative lighting
CN102757257B (en) * 2012-07-26 2014-12-10 吴敬发 Manufacturing method of carved porcelain and gold-decorated enamel color carved porcelain manufactured according to manufacturing method
CN105774360A (en) * 2016-05-28 2016-07-20 济南金强激光数控设备有限公司 Red wine bottle engraving process
CN106965093A (en) * 2017-05-24 2017-07-21 连云港明道雕刻艺术有限公司 A kind of blasting craft of crystal product
CN108058264B (en) * 2017-12-04 2020-07-28 南充三环电子有限公司 Powder coating process and system for ceramic substrate blank
CN109326610B (en) * 2018-09-19 2022-03-11 京东方科技集团股份有限公司 Flexible display panel and manufacturing method thereof
CN113856780A (en) * 2021-11-11 2021-12-31 苏州迪可通生物科技有限公司 Process for batch production of microfluidic chips by sand blasting and sand etching

Also Published As

Publication number Publication date
CN1068062A (en) 1993-01-20

Similar Documents

Publication Publication Date Title
CN1024078C (en) Method for making photographic sand carving pattern on surface of hard material and appratus thereof
CN1199242C (en) Substrate treatment equipment and substrate treatment method using said equipment
CN1923381A (en) Substrate cleaning device and substrate cleaning method
CN110228010B (en) Carrier surface cleaning device and method
EP1670039A4 (en) Exposure apparatus and device producing method
CN1779905A (en) Substrate processing system
CN1776527A (en) Pneumatic method and apparatus for nano print lithography
JPS597948A (en) Formation of image
US4548894A (en) Photosensitive recording materials for the production of abrasion-resistant and scratch-resistant gravure printing plates comprising particles
WO1987001827A3 (en) Method for creating a design in relief in a hard smooth substrate and apparatus for use in the method
ATE368297T1 (en) METHOD FOR CLEANING A DEVICE FOR PRODUCING THIN FILM SILICON
JP2003109915A (en) Method and device for performing in-print lithography in releasable atmosphere
CN1289964C (en) Method for making glass chip under ordinary laboratory condition
CN1503035A (en) Glass substrate for plane display device and mfg method thereof
CN1324351C (en) Particle clearing device
CN1655951A (en) Method and device for printing objects
CN1815372A (en) Pattern formation method
CN1287771A (en) Manufacturing method of wiring circuit board, and wiring circuit board
CN215032060U (en) Belt cleaning device suitable for high generation mask version packing box
CN213149470U (en) Automatic demoulding system for ultraviolet nano-imprint lithography
JPS6049437B2 (en) How to create designs by etching
US20240053677A1 (en) Apparatus and Method for Structured Replication and Transfer
CN215679035U (en) Large-breadth micro-structure array automatic production line equipment
CN1460601A (en) Natural marble colour etched picture and its making method
CN1105320A (en) Making of carved glass

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee