CN1091399A - Colored glass ceramics containing lithium tailings of more than or equal to 80 percent and manufacturing method thereof - Google Patents
Colored glass ceramics containing lithium tailings of more than or equal to 80 percent and manufacturing method thereof Download PDFInfo
- Publication number
- CN1091399A CN1091399A CN 93112352 CN93112352A CN1091399A CN 1091399 A CN1091399 A CN 1091399A CN 93112352 CN93112352 CN 93112352 CN 93112352 A CN93112352 A CN 93112352A CN 1091399 A CN1091399 A CN 1091399A
- Authority
- CN
- China
- Prior art keywords
- glass
- lithium
- tailings
- devitrified glass
- manufacture method
- 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.)
- Granted
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000002241 glass-ceramic Substances 0.000 title abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 14
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010899 nucleation Methods 0.000 claims 1
- 230000006911 nucleation Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 11
- 239000004579 marble Substances 0.000 abstract description 4
- 239000013081 microcrystal Substances 0.000 abstract description 4
- 239000010438 granite Substances 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Glass Compositions (AREA)
Abstract
A kind of colored glass ceramics containing more than or equal to 80% of lithium-containing tailings and its preparation method, use lithium-containing tailings 80-100% as the main raw materials of the glass, add right amount of crystal nucleus agent, colorant, the colored series glass ceramics made, the color is various: red, green, yellow, silver, gray and the like, has excellent texture and can be compared favorably with natural marble and granite; it can be used as high-grade building facing material, wear-resisting and corrosion-resisting facing material for industrial and mining enterprises, and can be used as civil microcrystal glass ware and industrial art product.
Description
The present invention relates to glass manufacturing area, particularly relate to a kind of colour devitrified glass and manufacture method thereof that adopts lithium sand mine tailing 〉=80%.
Prior art as " manufacture method of the senior building materials of white micro-crystals glass " (CN91107398.1) and " manufacture method of black glass ceramic " (CN90107864.8) belong to the calcium microcrystalline glass in series and lithium microcrystalline glass in series of the present invention has essential distinction; " lithionite type machinable glass ceramics " (" glass and the enamel " third phase, P11-17,1976) of Shang Glass Articles Works No.2, Shanghai chemical engineering institute special topic report, tailings add-on＜75% in its admixtion.Made devitrified glass contains low strength mica phase.Aforementioned raw materials used blast furnace slag, copper ashes and the phosphorus ore tailings of only limiting to.They have following shortcoming: these slag calcium microcrystalline glass in series are in the fusion cast glass process, and glass melt still has the not glass coating of crystallization (scum silica frost), needs special processing; The existence of scum silica frost has a strong impact on the homogeneity of glass, increases cold worked grinding and polishing amount; Particularly present color only limits to black and white.
The object of the present invention is to provide a kind of employing to contain to be higher than 80% lithium is method and the goods that tailings is made the color series devitrified glass.Make full use of ore deposit tailings resource, turn waste into wealth, lithotome is made the senior building material and other slag is done many defectives that raw material is made devitrified glass to overcome.
Principal feature of the present invention is to adopt state to include the lithium tailings to make main raw material, and making lithium is glass and colour devitrified glass.Used tailings amount is up to 80-100%.This raw material only need add a small amount of additive and nucleus agent, tinting material.Found into behind the glass crystallization again and handle, can make the devitrified glass of color series, particular content is as follows:
1. to contain the main raw material of lithium tailings, add raw mineral materialss such as an amount of quartz sand, feldspar, soda ash, magnesium fluoride, borax, Quilonum Retard as glass.
The Chemical Composition scope wt% of used various grade tailings:
SiO
250-60
Al
2O
320-30
Li
2O 2-7
F 4-6
R
2O（Na
2O+K
2O） 8-10
MnO
20.3-0.5
Fe
2O
3≤0.8
P
2O
50.1
2. add the nucleus agent in the above-mentioned frit, its kind is: P
2O
5, ZrO
2, TiO
2, add-on is wt%:0.5-5.Add a small amount of tinting material SnO, Cr
2O
3, CuO, NiO, MnO
2, Fe
2O
3, CoO etc.Can be made into a series of colour devitrified glass such as green, redness, beige, black respectively.
3. the glass melting temperature 1470-1530 of glass ℃; Mold temperature is 1100-1300 ℃.Be suitable for pouring into a mould, suppress, roll and the moulding process of conventional glass such as the system of inhaling.
4. the crystallization employing is carried out two-stage thermal treatment for 550-900 ℃.Be cooled to about 80 ℃.
5. adopt general glass cold machining process to carry out the glass surface grinding and polishing.
Technique effect of the present invention is:
1. the manufacturing of this glass and devitrified glass is to utilize the source abundant, and therefore cheap single tailings raw material requires simpler and easy to processing condition such as batching, weighing and mixing in the production technique;
2. owing to adopting the mineral tailings, lower than the glass melting temperature of preparing powder with industrial chemicals, but fuel saving; Adopt 1100-1300 ℃ of mold temperature, can avoiding not, the glass coating of crystallization occurs;
3. to contain Fe amount lower for this kind raw material, can be made into the glass and the devitrified glass of various light color.By adding the senior building finishing material that tinting material can be made into rare your color.
4. the product that makes with this law contains the high β of intensity-triphane phase, and its physical and chemical performance can compare favourably with natural marble, grouan, partly is better than latter's (seeing Table 1)
Table 1 goods of the present invention (example) compare with the performance of marble, grouan
| Performance | Unit | Goods of the present invention | Marble | Granite |
| Density | g/cm 3 | 2.5-2.6 | 2.6-2.8 | 2.6-2.8 |
| Bending strength | mpa | 50-80 | 7.2 | 15 |
| Ultimate compression strength | mpa | 400 | 60-300 | 100-300 |
| Resistance to impact shock | kg.cm/cm 2 | 2.0 | 0.77 | 1.4 |
| Water-intake rate | % | 0 | 0.1-0.7 | 0.1-1 |
| Mohs' hardness | 5-5.5 | -3 | 5.5 |
5. goods colour devitrified glass of the present invention has extensive use, not only can substitute the granite finishing material of valuable color, also can be used for wear-resisting, the corrosion-resistant surface lining of industrial and mining enterprises and can make various civilian devitrified glass vessel and art ware.
The present invention finishes by following examples:
Example 1, the making of white micro-crystals glass
With 85 parts of tailings (lithium system) (by weight, down together), 15 parts of quartz sands, 2.5 parts in additional zirconium diamond stone, mix, 1530 ℃ of insulations 3 hours, found into glass, 1300 ℃ of mold temperatures; Crystallization condition is 700 ℃ of insulations 1 hour, be warming up to 900 ℃ of insulations 1 hour again, is cooled to about 80 ℃ to take out.(following each example of cooling temperature herewith)
Wt% is as follows for gained white micro-crystals glass composition:
SiO
260.5
Al
2O
320.4
Li
2O 3.8
MgO 0.5
K
2O 7
Na
2O 1.1
ZrO
22.0
F 4
Nucleus agent ZrO
22.0
Tinting material ZnO 0.5
The making of example 2 grey devitrified glasses
With lithium is 100 parts of tailings, adds P
2O
53wt% mixes, and founds into glass at 1470 ℃; 1100 ℃ of mold temperatures; By 600 ℃ of insulations 1 hour, rise to 850 ℃ of insulations 1 hour, after the cooling grey devitrified glass, its bending strength σ=120mpa.
The composition wt% of glass:
SiO
255
Al
2O
325
Li
2O 5
K
2O 7
Na
2O 1.5
P
2O
5The agent of 3(nucleus)
F 4
Tinting material MnO
21.0
The making of example 3 copper red look devitrified glasses
According to example 2, add tinting material CuO and SnO, consumption wt%:1; At 1500 ℃ of fusion cast glass; 1200 ℃ of mold temperatures; Again 700 ℃ of insulations 1 hour; After rising to 850 ℃, be incubated 1 hour again, the bending strength of resulting product is σ=100mpa.
The used nucleus agent of this example is P
2O
5, amount: 0.5%.
The making of example 4 green glass-ceramics
According to example 2, add nucleus agent TiO
20.5%; Tinting material Cr
2O
30.6%; 1510 ℃ of insulations 3 hours, found into green glass; 1250 ℃ of mold temperatures.Through 550 ℃ of insulations 1 hour, be warming up to 800 ℃, be incubated 1 hour again, cooling.
The making of example 5 silvery white devitrified glasses
According to example 2, add nucleus agent 0.1%TiO
2; And 2% tinting material ZnO, founded into brown transparent glass in 3 hours 1490 ℃ of insulations; 1250 ℃ of mold temperatures; 600 ℃ of crystallization 1 hour and 820 ℃ are after 1 hour.
The making of example 6 beige devitrified glasses
With lithium is 80 parts of tailings, 1 part of quartz sand, 2 parts of Quilonum Retards, 9 parts of boraxs, 1 part of magnesium fluoride, and primary ammonium phosphate mixes for 5 parts, founds into glass under 1520 ℃; 1230 ℃ of mold temperatures; Crystallization: 650 ℃ of 1 hour and 810 ℃ 1 hour, (nucleus agent P
2O
53%; Tinting material Fe
2O
31%; The composition wt% of ZnO 2% resulting product:
SiO
254
Al
2O
318
Li
2O 8
MgO 1.5
B
2O
35
F 5
K
2O+Na
2O 8
The making of example 7 black glass ceramics
According to example 2, add tinting material NiO, CoO:1%; MnO
22%; Nucleus agent ZrO 2%; 1520 ℃ are incubated 3 hours, found into glass, 1300 ℃ of mold temperatures; 650 ℃ of crystallization 1 hour and 850 ℃ 1 hour, cooling.
The making of example 8 black glass ceramics
According to example 2, add tinting material Fe
2O
31.5% and Na
2SO
40.5%, nucleus agent P
2O
50.5%, found: 1530 ℃ 3 hours; Moulding: 1260 ℃.Crystallization: 650 ℃ of 1 hour and 850 ℃ 1 hour.
Claims (5)
1, a kind of manufacture method that contains the colour devitrified glass of lithium tailings 〉=80% comprises:
(1) founds: 1470 ℃-1530 ℃;
Moulding;
Crystallization (handle: 550 ℃ of-700 ℃ of nucleation by the two-stage crystallization; 800-900 ℃ of crystallization);
(2) add an amount of nucleus agent and tinting material,
It is characterized in that:
(1) selects that to contain lithium tailings 80%-100% be the main composition raw material of colour devitrified glass as lithium for use;
(2) processing condition are: mold temperature is 1100 ℃-1300 ℃.
2, according to the manufacture method of the colour devitrified glass of claim 1, products made thereby adularescent and black is characterized in that:
(1) described colour devitrified glass, colored various;
(2) composition of colour devitrified glass is:
SiO
240-65
Al
2O
317-25
Li
2O 3-8
RO（MgO+CaO） 0-3
R
2O（Na
2O+K
2O） 5-8
F 2-8
The nucleus agent is an amount of
Tinting material adds as required
3, according to the manufacture method of the color series devitrified glass of claim 1 or 2, it is characterized in that:
(1) described nucleus agent is P
2O
5, ZrO
2, TiO
2, ZnO;
(2) nucleus agent consumption 0.5-5wt%.
4, according to the manufacture method of the colored lithium microcrystalline glass in series of claim 1 or 2 or 3, it is characterized in that:
(1) described tinting material is Zno, CnO, Cr
2O
3, NiO, CoO, Fe
2O
3;
(2) the tinting material consumption is 0.5-2wt%.
5, according to the manufacture method of the colored lithium microcrystalline glass in series of claim 2, it is characterized in that: described colour is various to be: red, green, cream-coloured, silvery white, grey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112352 CN1030602C (en) | 1993-02-26 | 1993-02-26 | Method for manufacturing colored glass ceramics containing lithium tailings more than 80 percent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112352 CN1030602C (en) | 1993-02-26 | 1993-02-26 | Method for manufacturing colored glass ceramics containing lithium tailings more than 80 percent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091399A true CN1091399A (en) | 1994-08-31 |
| CN1030602C CN1030602C (en) | 1996-01-03 |
Family
ID=4989971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93112352 Expired - Fee Related CN1030602C (en) | 1993-02-26 | 1993-02-26 | Method for manufacturing colored glass ceramics containing lithium tailings more than 80 percent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030602C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439932B (en) * | 2008-12-26 | 2012-08-29 | 中国地质科学院尾矿利用技术中心 | Low-expansion glass-ceramics with lithia ore tailings as principal raw material and manufacturing method thereof |
| CN102134156B (en) * | 2010-01-21 | 2012-10-10 | 江苏拜富科技有限公司 | Deep color microcrystalline glass frit and method for preparing deep color microcrystalline glass ceramic composite boards |
| CN103073189A (en) * | 2013-01-22 | 2013-05-01 | 四川一名微晶科技股份有限公司 | Beige microcrystalline glass plate and manufacturing method thereof |
| CN103145341A (en) * | 2013-03-22 | 2013-06-12 | 内江华原电子材料有限公司 | Fluoride-free, boron-free and alkali-free glass fibre and preparation method for same |
| CN103232164A (en) * | 2013-04-27 | 2013-08-07 | 四川一名微晶科技股份有限公司 | Coffee microcrystal glass plate and production method thereof |
| CN103880284A (en) * | 2014-03-10 | 2014-06-25 | 苏州捷德瑞精密机械有限公司 | Glass containing copper oxide and preparation method of glass |
| CN103896485A (en) * | 2014-03-10 | 2014-07-02 | 苏州捷德瑞精密机械有限公司 | Phosphate glass and preparation method thereof |
| CN108863088A (en) * | 2018-09-06 | 2018-11-23 | 四川名微晶科技股份有限公司 | A method of devitrified glass is prepared using spodumene tailing as primary raw material |
| CN109265010A (en) * | 2018-12-07 | 2019-01-25 | 李异洪 | A kind of lithium porcelain stone tailing microcrystal glass and preparation method thereof |
| CN109354416A (en) * | 2018-12-07 | 2019-02-19 | 李异洪 | It is a kind of to utilize the once sintered process for preparing devitrified glass of lithium porcelain stone tailing |
-
1993
- 1993-02-26 CN CN 93112352 patent/CN1030602C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439932B (en) * | 2008-12-26 | 2012-08-29 | 中国地质科学院尾矿利用技术中心 | Low-expansion glass-ceramics with lithia ore tailings as principal raw material and manufacturing method thereof |
| CN102134156B (en) * | 2010-01-21 | 2012-10-10 | 江苏拜富科技有限公司 | Deep color microcrystalline glass frit and method for preparing deep color microcrystalline glass ceramic composite boards |
| CN103073189B (en) * | 2013-01-22 | 2015-02-11 | 四川一名微晶科技股份有限公司 | Beige microcrystalline glass plate and manufacturing method thereof |
| CN103073189A (en) * | 2013-01-22 | 2013-05-01 | 四川一名微晶科技股份有限公司 | Beige microcrystalline glass plate and manufacturing method thereof |
| CN103145341B (en) * | 2013-03-22 | 2016-06-08 | 内江华原电子材料有限公司 | A kind of floride-free boron-free and alkali-free glass fiber and preparation method thereof |
| CN103145341A (en) * | 2013-03-22 | 2013-06-12 | 内江华原电子材料有限公司 | Fluoride-free, boron-free and alkali-free glass fibre and preparation method for same |
| CN103232164A (en) * | 2013-04-27 | 2013-08-07 | 四川一名微晶科技股份有限公司 | Coffee microcrystal glass plate and production method thereof |
| CN103232164B (en) * | 2013-04-27 | 2015-03-25 | 四川一名微晶科技股份有限公司 | Coffee microcrystal glass plate and production method thereof |
| CN103880284A (en) * | 2014-03-10 | 2014-06-25 | 苏州捷德瑞精密机械有限公司 | Glass containing copper oxide and preparation method of glass |
| CN103896485A (en) * | 2014-03-10 | 2014-07-02 | 苏州捷德瑞精密机械有限公司 | Phosphate glass and preparation method thereof |
| CN103880284B (en) * | 2014-03-10 | 2016-08-17 | 深圳市粤盾科技特种玻璃有限公司 | A kind of glass containing copper oxide and preparation method thereof |
| CN108863088A (en) * | 2018-09-06 | 2018-11-23 | 四川名微晶科技股份有限公司 | A method of devitrified glass is prepared using spodumene tailing as primary raw material |
| CN109265010A (en) * | 2018-12-07 | 2019-01-25 | 李异洪 | A kind of lithium porcelain stone tailing microcrystal glass and preparation method thereof |
| CN109354416A (en) * | 2018-12-07 | 2019-02-19 | 李异洪 | It is a kind of to utilize the once sintered process for preparing devitrified glass of lithium porcelain stone tailing |
| CN109265010B (en) * | 2018-12-07 | 2021-05-14 | 李异洪 | Lithium porcelain stone tailing microcrystalline glass and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030602C (en) | 1996-01-03 |
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Address after: 313000 Fenghuang Industrial Zone, Huzhou Economic Development Zone Patentee after: Huzhou Daxiang Glass Product Co., Ltd. Patentee before: Huzhou glass two branch |
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