JPS6143296B2 - - Google Patents
Info
- Publication number
- JPS6143296B2 JPS6143296B2 JP8078279A JP8078279A JPS6143296B2 JP S6143296 B2 JPS6143296 B2 JP S6143296B2 JP 8078279 A JP8078279 A JP 8078279A JP 8078279 A JP8078279 A JP 8078279A JP S6143296 B2 JPS6143296 B2 JP S6143296B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- powder
- filler
- ceramic color
- less
- 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
Links
- 239000011521 glass Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 6
- 229910052878 cordierite Inorganic materials 0.000 claims description 4
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000005357 flat glass Substances 0.000 claims description 4
- 229910052845 zircon Inorganic materials 0.000 claims description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Glass Compositions (AREA)
Description
自動車窓ガラス板の窓枠に沿つて周辺部に、帯
状あるいは種々の形状の着色不透明のセラミクカ
ラー組成物(フリツト)の被覆層を焼付けること
によつて、車内のガラス板周辺部の電熱線や端子
あるいはガスケツトが車外から透視できないよう
することが行なわれている(実公昭50―38895
号、実開昭49―95624号参照)。
このセラミツクカラーフリツト被覆層は、通常
10〜30%の耐熱性着色(通常は黒色)願料と70〜
90%の低融点バインダーガラスから構成される。
その形成に当つては前記粉末混合物ビヒクルを混
練しペースト化した後、ガラス板の周辺にスクリ
ーン印刷法等により塗布し、ついでビヒクルの乾
燥後、ガラス板の強化もしくは曲げ加工の工程で
ガラス板をその軟化点に加熱する際、同時にセラ
ミツクカラーフリツトの被覆をガラス板表面に焼
付ける。
しかしながら、現状の製品にあつては、焼付後
のガラス板の機械的強度が、ガラス表面に融着し
ているセラミツク層の強度が低いことに起因し
て、低下する難点がある。
本発明は前述の難点を解消するためになされた
もので、強度低下の殆んどないセラミツクカラー
フリツト組成物を提供する。
しかして本発明に係るセラミツクカラー組成物
は、着色耐熱性願料粉末と、低融点バインダーガ
ラス粉末と、低膨張性耐火物フイラー粉末とから
なり、前記ガラス粉末は、下記組成範囲を有する
こと;
By baking a coating layer of a colored opaque ceramic color composition (frit) in the form of a strip or in various shapes around the window frame of an automobile window glass plate, heating wires around the glass plate inside the car can be heated. The terminals, gaskets, etc. are made so that they cannot be seen from outside the vehicle.
(Refer to Utility Model Publication No. 49-95624). This ceramic color frit coating layer is usually
10~30% heat resistant coloring (usually black) application fee and 70~
Composed of 90% low melting point binder glass.
In its formation, the powder mixture vehicle is kneaded and made into a paste, and then applied to the periphery of a glass plate by screen printing, etc. After the vehicle is dried, the glass plate is strengthened or bent. While heating to its softening point, a coating of ceramic color frit is simultaneously baked onto the surface of the glass plate. However, current products have the disadvantage that the mechanical strength of the glass plate after baking is reduced due to the low strength of the ceramic layer fused to the glass surface. The present invention has been made to solve the above-mentioned difficulties, and provides a ceramic color frit composition with almost no decrease in strength. The ceramic color composition according to the present invention comprises a colored heat-resistant powder, a low-melting binder glass powder, and a low-expansion refractory filler powder, and the glass powder has the following composition range;
【表】
前記フイラーは、ジルコン、コージエライト又
はアルミナのうち少くとも1種からなること、及
び重量比でガラス粉末75〜99部、フイラー粉末25
〜1部の割合で含有されることを特徴とする。
前記低融点バインダーガラスの組成限定の理由
は次の通り
SiO2:10%より少ないと熔融中失透物が生成
し、ガラス化困難となる。40%より多いとガ
ラス軟化温度が高くなり過ぎ、所望の熱処理
(600〜690℃、5〜1分間)における流動
性、密着性が低下する。望ましくは15〜
35wt%の範囲である。
Al2O3:結晶化抑制剤および化学的耐久性改善の
目的で使用し、1%より少ないと上記効果は
小さい。15%を越えるとガラス軟化温度が高
くなり過ぎる。望ましくは2〜12wt%であ
る。
ZnO:本ガラスのフラツクス剤として使用する
が、3%より少ないとその効果は弱く、軟化
温度が高くなり過ぎる。一方、55%より多い
と、相対的に他成分比率(特にSiO2,
Al2O3)が少なくなるため、化学的耐久性の
低下、膨張係数の増大があり好ましくない。
望ましくは5〜50wt%の範囲である。
B2O3:本成分はフラツクス剤として用いる。10
%より少ないとガラス軟化温度が高くなり過
ぎる。35%より多いとガラス軟化温度が低く
なり過ぎるとともに熱膨張係数が増大し、本
目的の低膨張化は達成し難い。望ましくは12
―30wt%である。
R2O(Na2O,K2O及び/又はLi2O):
フラツクス剤として用いる。本成分の一種あ
るいは二種以上の併合使用によりガラス軟化
温度の低温化および化学的耐久性改善効果を
有する。1%より少ないと効果はない。20%
を越えると熱膨張係数が大きくなり過ぎ好ま
しくない。望ましくは3〜15%の範囲であ
る。
RO(MgO,CaO及び/又はBaO):
本成分はガラス熔解性改善およびガラス特性
調整剤として使用する。但し0.5〜より少な
いと上記効果は弱い。35%より多いと熱膨張
係数が大きくなり過ぎる。望ましくは1〜
30wt%の範囲である。
RO2(TiO2及び/又はSnO2):
必須成分ではないが、本成分の導入により化
学的耐久性(耐水性等)の改善効果が有る。
5%を越える量を入れても効果は期待できず
望ましくは3%以内である。
F:低融化させる目的で使用し得る。但し、2%
を越えると熱膨張係数が大きくなり過ぎる。
望ましくは1.5%以下である。
耐火物フイラーとして低膨張物質でしかも耐熱
特性の優れたフイラーをフリツト中に導入するこ
とにより焼付時のセラミツクカラーフリツトの熱
膨張係数を低下させることができる。ジルコン、
コージエライトあるいはアルミナ微粉末を上述し
たガラス組成物に対し1〜25wt%混合する。25
%を越えるとフリツト全体の流動性の低下および
接着性不十分となり好ましくない。1%より少な
いと効果は小さい。望ましくは3〜23wt%の範
囲である。
着色耐熱性願料としては、公知の黒色願料例え
ば、MnO2,CoO,GdS,Cr2O3の粉末が用いら
れ、通常組成物全体の10〜30wt%含有させる。
これらの3種の粉末を充分混合した後、適当な
ビヒクルで混練しペースト化し、ガラス板の所定
の箇所に塗布し、乾燥後、ガラス板の強化及び/
又は曲げ加工のための熱処理の際焼付ける。
実施例
(1) セラミツク・カラーフリツトの調整法
別表に示す6種の低融点バインダー用ガラスを
通常の方法により溶解し、溶解後のガラスを水砕
する。得られたガラス粒と市販の黒色耐熱願料
(主成分Fe,Mn系スピネル)20wt%(添加)を
混ぜ、ポツト・ミルで適量の水を加え湿式粉砕す
る。
尚、No.5のサンプルの場合、ガラス粉末のうち
10wt%をコージエライト粉末で置換し、No.6の
場合17wt%をジルコン粉末で置換した。粉砕は
平均粒径2μm以下になるまで行ない、得られた
粉砕物を乾燥し、粉状の混合物を調整する。この
粉末と粘性調整したピークル(通常テレピネオー
ルにエチルセルロースを加え、粘性を調整)を
4:1の割合で混ぜ、混練機で十分混練しペース
ト状とする。
(2) ガラス強化焼付処理
30×30cm厚み5mmの板ガラスを準備し、その中
央部に約10cm×10cmの大きさで、前述のセラミツ
クカラーペーストをスクリーン印刷する。スクリ
ーンは150meshを用い焼付後のセラミツクカラー
層厚みは20〜30μになるように調整した。印刷後
の板ガラスを約200℃の乾燥器で約10分間乾燥
し、ピークル成分を揮発させる。
次にこれらガラス板を通常の方法により風冷強
化処理する。強化は、700℃3分加熱後、400mm―
H2Oの風圧で急冷する方法を用いた。この強化処
理により、塗付されたセラミツクカラーフリツト
は板ガラス表面に強固に焼付けられる。
(3) 強度の測定
強度は通常の落球強度により比較した。落球強
度試験は227gの鋼球を50cmの高さから落下さ
せ、破損しなかつた場合順次10cmづつ高さを上げ
て行き、破損した高さを落球強度とした。
(4) 結果は下表の通り:
尚、表には、バインダーガラスのDTAによる
軟移点、軟化点の測定結果及び得られたフリツト
焼成物(700℃、3分間)の熱膨張係数(50〜350
℃)が示される。[Table] The filler is made of at least one of zircon, cordierite, or alumina, and the weight ratio is 75 to 99 parts of glass powder and 25 parts of filler powder.
It is characterized in that it is contained in a proportion of ~1 part. The reason for limiting the composition of the low melting point binder glass is as follows: If SiO 2 is less than 10%, devitrification will be generated during melting, making vitrification difficult. When it is more than 40%, the glass softening temperature becomes too high, and the fluidity and adhesion during the desired heat treatment (600 to 690°C, 5 to 1 minute) decrease. Preferably 15~
It is in the range of 35wt%. Al 2 O 3 : Used as a crystallization inhibitor and to improve chemical durability; if it is less than 1%, the above effect will be small. If it exceeds 15%, the glass softening temperature will become too high. It is preferably 2 to 12 wt%. ZnO: Used as a fluxing agent for this glass, but if it is less than 3%, its effect will be weak and the softening temperature will become too high. On the other hand, if it exceeds 55%, the relative proportion of other components (especially SiO 2 ,
Al 2 O 3 ) is decreased, which is undesirable because it causes a decrease in chemical durability and an increase in the coefficient of expansion.
It is preferably in the range of 5 to 50 wt%. B 2 O 3 : This component is used as a fluxing agent. Ten
If it is less than %, the glass softening temperature will become too high. If it exceeds 35%, the glass softening temperature becomes too low and the coefficient of thermal expansion increases, making it difficult to achieve the desired low expansion. Preferably 12
-30wt%. R 2 O (Na 2 O, K 2 O and/or Li 2 O): Used as a fluxing agent. The use of one or more of these components in combination has the effect of lowering the glass softening temperature and improving chemical durability. There is no effect if it is less than 1%. 20%
Exceeding this is not preferable because the coefficient of thermal expansion becomes too large. It is preferably in the range of 3 to 15%. RO (MgO, CaO and/or BaO): This component is used to improve glass meltability and as a glass property modifier. However, if it is less than 0.5, the above effect will be weak. If it exceeds 35%, the coefficient of thermal expansion becomes too large. Preferably 1~
It is in the range of 30wt%. RO 2 (TiO 2 and/or SnO 2 ): Although not an essential component, the introduction of this component has the effect of improving chemical durability (water resistance, etc.).
Even if the amount exceeds 5%, no effect can be expected, so the amount is preferably 3% or less. F: Can be used for the purpose of lowering the melting point. However, 2%
If it exceeds , the coefficient of thermal expansion becomes too large.
It is preferably 1.5% or less. By introducing a filler which is a low expansion material and has excellent heat resistance properties into the frit as a refractory filler, the coefficient of thermal expansion of the ceramic color frit during baking can be lowered. zircon,
Cordierite or alumina fine powder is mixed in an amount of 1 to 25 wt% with respect to the above-mentioned glass composition. twenty five
If it exceeds %, the fluidity of the entire frit will decrease and the adhesion will be insufficient, which is undesirable. If it is less than 1%, the effect is small. It is preferably in the range of 3 to 23 wt%. As the colored heat-resistant application material, known black application materials such as powders of MnO 2 , CoO, GdS, and Cr 2 O 3 are used, and are usually contained in an amount of 10 to 30 wt% of the entire composition. After thoroughly mixing these three powders, they are kneaded with an appropriate vehicle to form a paste, which is applied to a predetermined location on a glass plate, and after drying, strengthens the glass plate and/or
Or baked during heat treatment for bending. Example (1) Method for preparing ceramic color frit Six types of low melting point binder glasses shown in the attached table are melted by a conventional method, and the melted glass is pulverized. The obtained glass particles are mixed with 20wt% (added) of a commercially available black heat-resistant powder (main components Fe, Mn-based spinel), and wet-milled by adding an appropriate amount of water in a pot mill. In addition, in the case of sample No. 5, out of the glass powder
10 wt% was replaced with cordierite powder, and in the case of No. 6, 17 wt% was replaced with zircon powder. The pulverization is carried out until the average particle size becomes 2 μm or less, and the obtained pulverized product is dried to prepare a powdery mixture. This powder and viscosity-adjusted peakle (normally ethyl cellulose is added to terpineol to adjust the viscosity) are mixed in a ratio of 4:1, and thoroughly kneaded with a kneader to form a paste. (2) Glass reinforcement baking process Prepare a plate glass 30 x 30 cm and 5 mm thick, and screen print the ceramic color paste described above in the center of the glass to a size of approximately 10 cm x 10 cm. The screen was 150mesh, and the thickness of the ceramic color layer after baking was adjusted to 20 to 30μ. After printing, the plate glass is dried in a dryer at about 200℃ for about 10 minutes to volatilize the peak components. Next, these glass plates are subjected to air-cooling strengthening treatment using a conventional method. Strengthening is 400mm after heating at 700℃ for 3 minutes.
A method of rapid cooling using H 2 O air pressure was used. Through this strengthening treatment, the applied ceramic color frit is firmly baked onto the surface of the glass plate. (3) Measurement of strength Strength was compared using normal falling ball strength. In the falling ball strength test, a 227 g steel ball was dropped from a height of 50 cm, and if the ball did not break, the height was increased in 10 cm increments, and the height at which the ball broke was taken as the falling ball strength. (4) The results are as shown in the table below: In addition, the table shows the measurement results of the softening point and softening point of the binder glass by DTA, and the coefficient of thermal expansion (50 ~350
°C) is indicated.
【表】【table】
Claims (1)
と、低膨張性耐火物フイラー粉末とからなり、前
記ガラス粉末は、下記組成範囲を有すること: 【表】 前記フイラーは、ジルコン、コージエライト又
はアルミナのうち少なくとも1種からなること、
及び重量比でガラス粉末75〜99部、フイラー粉末
25〜1部の割合で混合されることを特徴とする自
動車窓ガラス板用着色セラミツクカラーフリツト
組成物。[Scope of Claims] 1. Consisting of a colored heat-resistant application powder, a low melting point glass powder, and a low expansion refractory filler powder, the glass powder having the following composition range: [Table] The filler has the following composition range: , zircon, cordierite, or alumina;
and 75-99 parts glass powder by weight, filler powder
A colored ceramic color frit composition for an automobile window glass plate, which is mixed in a proportion of 25 to 1 part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8078279A JPS565348A (en) | 1979-06-28 | 1979-06-28 | Color ceramic and color frit composition for automobile glass plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8078279A JPS565348A (en) | 1979-06-28 | 1979-06-28 | Color ceramic and color frit composition for automobile glass plate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS565348A JPS565348A (en) | 1981-01-20 |
JPS6143296B2 true JPS6143296B2 (en) | 1986-09-26 |
Family
ID=13728008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8078279A Granted JPS565348A (en) | 1979-06-28 | 1979-06-28 | Color ceramic and color frit composition for automobile glass plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS565348A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04111844U (en) * | 1991-03-15 | 1992-09-29 | 住江織物株式会社 | Easy-to-install hard flooring |
WO2016136576A1 (en) * | 2015-02-25 | 2016-09-01 | 日本電気硝子株式会社 | Top plate for cooking device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56155040A (en) * | 1980-04-30 | 1981-12-01 | Matsushita Electric Ind Co Ltd | Enamel frit |
JPS57175750A (en) * | 1981-04-23 | 1982-10-28 | Shibata Hario Glass Kk | Baking method of glass |
JPS60235744A (en) * | 1984-05-04 | 1985-11-22 | Asahi Glass Co Ltd | Composition for ceramic base |
TR26836A (en) * | 1991-03-07 | 1994-08-16 | Ceramica Filippe Marazzi S P A | Glass ceramic compound suitable for coating ceramic articles |
US5817586A (en) * | 1996-04-12 | 1998-10-06 | Asahi Glass Company Ltd. | Colored ceramic composition |
JP4370686B2 (en) * | 1999-06-09 | 2009-11-25 | 旭硝子株式会社 | Barium borosilicate glass and glass ceramic composition |
US6417123B1 (en) * | 2000-08-14 | 2002-07-09 | Nippon Electric Glass Co., Ltd. | Dielectric composition useful for light transparent layer in PDP |
DE10141105C1 (en) | 2001-08-22 | 2003-06-26 | Schott Glas | Optical colored glass and its use |
JP5334047B2 (en) * | 2009-01-15 | 2013-11-06 | 国立大学法人東北大学 | Crystallized glass, photocatalytic member using the same, and optical member using the same |
FR2976576B1 (en) * | 2011-06-17 | 2014-08-08 | Saint Gobain | METHOD FOR MANUFACTURING A GLASS SUBSTRATE HAVING PRINTED EMILE PATTERNS |
DE102020106946A1 (en) * | 2020-03-13 | 2021-09-16 | Schott Ag | Glass for passivating semiconductor components |
-
1979
- 1979-06-28 JP JP8078279A patent/JPS565348A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04111844U (en) * | 1991-03-15 | 1992-09-29 | 住江織物株式会社 | Easy-to-install hard flooring |
WO2016136576A1 (en) * | 2015-02-25 | 2016-09-01 | 日本電気硝子株式会社 | Top plate for cooking device |
Also Published As
Publication number | Publication date |
---|---|
JPS565348A (en) | 1981-01-20 |
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