JPS6359374A - Preparation of painted steel plate - Google Patents

Preparation of painted steel plate

Info

Publication number
JPS6359374A
JPS6359374A JP20245086A JP20245086A JPS6359374A JP S6359374 A JPS6359374 A JP S6359374A JP 20245086 A JP20245086 A JP 20245086A JP 20245086 A JP20245086 A JP 20245086A JP S6359374 A JPS6359374 A JP S6359374A
Authority
JP
Japan
Prior art keywords
steel plate
treatment agent
coated
base treatment
roll coater
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.)
Pending
Application number
JP20245086A
Other languages
Japanese (ja)
Inventor
Seiji Saito
静司 斎藤
Keiichi Iwasaki
恵一 岩崎
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP20245086A priority Critical patent/JPS6359374A/en
Publication of JPS6359374A publication Critical patent/JPS6359374A/en
Pending legal-status Critical Current

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

PURPOSE:To provide a manufacturing method suitable for multikind and small- quantity production, constituted so that an inorg. compound is used in a base treatment agent as a binder to impart proper viscosity of said treatment agent and a short steel plate is coated with the treatment agent by a roll coater before being coated with thermosetting powder paint. CONSTITUTION:In the production of the outer box or door of a refrigerator, a short steel plate 2 is washed with pure water in washing apparatuses 27, 28, 31 to remove oil and dust from said steel plate and dried by a drying apparatus 34. Next, a zinc phosphate type base treatment agent P containing silica as a binder is applied to the washed steel plate by a roll coater 46 in a base treatment apparatus 40 and dried. Thereafter, the steel plate 2 is transferred into the paint booth 49 in a painting apparatus 19 to be electrostatically coated with polyester powder paint having a predetermined color in a predetermined thickness and transferred to a baking and drying apparatus 57 to perform baking, drying and curing. The steel plate after painting is processed into a desired product.

Description

【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は例えば冷蔵庫等の機器の外箱や扉となる金属箱
体な構成するための塗装鋼板の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for manufacturing a coated steel sheet for constructing a metal box that serves as an outer box or door of an appliance such as a refrigerator.

(ロ) 従来の技術 従来例えば冷蔵庫では外箱や扉を製造する場合、製造工
場にてキルド鋼等から成る鋼板を切欠き、孔明けした後
、外箱や扉の形に成形加工し、その後に塗装を行ってい
た。
(b) Conventional technology Conventionally, for example, when manufacturing an outer box or door for a refrigerator, a steel plate made of killed steel or the like is notched and drilled in a manufacturing factory, and then formed into the shape of the outer box or door. was being painted.

しかし乍も、この場合は成形品に塗装を施こすことにな
るため塗装設備が大型且つ複雑化する欠点がある。
However, in this case, since the molded product is coated, there is a drawback that the coating equipment becomes large and complicated.

←j 発明が解決しようとする問題点 この様な欠点を解決するために例えば特公昭58−54
624号公報に示される如き、予め塗装された鋼板を購
入して成形加工することが考えられるが、多機種少量生
産を行う場合広大な資材置場が必要となり、又、その場
合の塗装面の傷付き発生の問題もある。
←j Problems to be solved by the invention In order to solve these drawbacks, for example,
As shown in Publication No. 624, it is conceivable to purchase pre-painted steel plates and mold them, but when producing multiple models in small quantities, a vast material storage area is required, and in that case, there may be scratches on the painted surface. There is also the problem of sticking.

に)問題点を解決するための手段 本発明は斯かる問題点を解決して製造工場における多機
種少量生産に好適な塗装鋼板の製造方法を提供するもの
である。
B) Means for Solving the Problems The present invention solves the above problems and provides a method for manufacturing coated steel sheets that is suitable for production of a wide variety of products in small quantities at a manufacturing factory.

以下実施例に沿って本発明の詳細な説明する。The present invention will be described in detail below with reference to Examples.

シート状鋼板(2)は水洗工程+41+51及び工程(
6)における純水による洗浄によって油分及び塵埃を除
去した後、乾燥工程(7)にて乾燥し、次に工程(8)
にて下地処理装置(4flのロールコータ(461によ
り、シリカを結合剤としたリン酸亜鉛系の下地処理剤C
P+を塗布し乾燥させ、次に工程aαにて塗装々置09
により粉体塗料を静電塗装し1次に工程αDにて焼付乾
燥装置5ηにより加熱硬化せしめる。
Sheet steel plate (2) undergoes water washing process +41+51 and process (
After removing oil and dust by washing with pure water in step 6), drying is performed in a drying step (7), and then step (8)
Using a surface treatment device (4 fl roll coater (461), a zinc phosphate base treatment agent C with silica as a binder was used.
Apply P+ and let it dry, then apply the coating in step aα09
The powder coating is electrostatically applied, and first, in step αD, it is heated and cured using a baking dryer 5η.

(ホ)作用 本発明によれば鋼板をシート状で塗装するので設備が縮
小される。又、粉体塗装であるので容易に塗膜厚を確保
できる。又、ロールコータにて下地処理剤を塗布するの
で処理時間の短縮ができる。
(E) Function According to the present invention, since the steel plate is coated in the form of a sheet, the equipment can be reduced. Also, since it is powder coated, the coating thickness can be easily ensured. Furthermore, since the base treatment agent is applied using a roll coater, the processing time can be shortened.

(へ)実施例 第1図に本発明の塗装鋼板の製造方法を説明する工程図
を示し、第2図に塗装鋼板製造装置囚の概略断面図を示
す。工程(1)において被塗装体となるシート状鋼板(
2)を装置囚に挿入する。鋼板(2)はキルド鋼板に電
気亜鉛メッキを施したものであり。
(f) Example FIG. 1 shows a process diagram illustrating the method for manufacturing a painted steel sheet according to the present invention, and FIG. 2 shows a schematic cross-sectional view of a painted steel sheet manufacturing apparatus. In step (1), a sheet steel plate (
2) is inserted into the device prisoner. The steel plate (2) is a killed steel plate subjected to electrogalvanization.

次に脱脂工程(3)にて30秒間弱アルカリ性の液を鋼
板(2)に吹き付け、鋼板(2)表面に付着した油分を
除去される。次に二段階の水洗工程+41F51にそれ
ぞれ10秒間づつ鋼板(2)を洗浄し弱アルカリ液を洗
い落した後、工程(6)において純水により10秒間鋼
板(2)を洗浄し、表面に残る塵埃を完全に除去する。
Next, in a degreasing step (3), a slightly alkaline liquid is sprayed onto the steel plate (2) for 30 seconds to remove oil adhering to the surface of the steel plate (2). Next, the steel plate (2) is washed for 10 seconds each in a two-step water washing process + 41F51 to wash off the weak alkaline solution, and then in step (6) the steel plate (2) is washed for 10 seconds with pure water, remaining on the surface. Completely remove dust.

この様にして洗浄された鋼板(2)は次に乾燥工程(7
)において20秒間乾燥させる。次に工程(8)におい
て鋼板(2)への塗料の密着性を良くするための下地処
理剤を鋼板(2)に塗布し1次に工程(9)Kて50秒
間乾燥させる。この時の温度は100℃乃至160℃で
ある。次に工程0■にて鋼板(2)に塗料を施し1次に
工程(Illにて3分乃至5分間、230℃乃至240
℃で焼付乾燥させる。次に工程a21にて常温空気を2
分間鋼板(2)に付き付けて冷却し、工程131にで外
観を検査して、次に工程04にて仕上った鋼板(2)を
積み上げる。その後塗装済みの鋼板(2)は成形加工工
程に送られることになる。
The steel plate (2) cleaned in this way is then subjected to a drying process (7).
) for 20 seconds. Next, in step (8), a surface treatment agent for improving the adhesion of the paint to the steel plate (2) is applied to the steel plate (2), and then in step (9) K, it is dried for 50 seconds. The temperature at this time is 100°C to 160°C. Next, in step 0■, paint is applied to the steel plate (2), and in the first step (3 to 5 minutes at 230℃ to 240℃
Bake dry at °C. Next, in step a21, room temperature air is
The steel plates (2) are cooled for a minute, and the appearance is inspected in step 131, and then the finished steel plates (2) are stacked in step 04. Thereafter, the painted steel plate (2) will be sent to a forming process.

次に第2図で第1図の各工程における装置について説明
する。尚、工程(3)を実行する脱脂装置(161から
工程(9)を実行する乾燥装置(17)までは鋼板(2
)は一連の搬送ローラσ&にて移送され、又、工程QQ
Iを実行する塗装装置σ9から工程(121を実行する
冷却装置■まではベルトコンベアーのツノにて移送され
る。脱脂工程+31を実行する脱脂装置aaはローラ賭
上方に設けたノズル四より弱アルカリ性の液を鋼板(2
)に吹き付けることにより鋼板(2)表面の油分を洗い
落とす。次に水洗工程(4151を実行する水洗装置@
弼は同様にローラα急上方に設けたノズル(至)(7)
より鋼板(2)K水を吹き付は弱アルカリ性の液と塵埃
を殆ど落とす。次に工程(6)を実行する水洗装置l3
11はローラ賭上方のノズルGS5より純水を鋼板(2
)に吹き付けて塵埃を完全に洗い落とす。次に工程(8
)を実行する乾燥装置(ロ)はローラ賭上方に複数設け
た遠赤外線ヒータ(ト)からの輻射熱及びヒータ■によ
って暖められた空気を送風機07)によってダクト(至
)より図中点線矢印の如く循環せしめることによって装
置(ロ)内を100℃〜120℃とし、鋼板(2)に付
着した水分を乾燥除去せしめる。
Next, referring to FIG. 2, the apparatus for each step in FIG. 1 will be explained. In addition, the steel plate (2
) is transported by a series of transport rollers σ&, and
The parts from the coating device σ9, which carries out step I, to the cooling device ■, which carries out step 121, are transported by the horns of a belt conveyor. of liquid on a steel plate (2
) to wash off the oil on the surface of the steel plate (2). Next, a water washing device that executes the water washing process (4151 @
Similarly, the nozzle (to) installed above roller α (7)
Spraying steel plate (2) with K water removes most of the weak alkaline liquid and dust. Next, the water washing device l3 that executes step (6)
11 is a steel plate (2
) to completely remove dust. Next step (8
) The drying device (b) that carries out the process uses radiant heat from a plurality of far-infrared heaters (g) installed above the rollers and air warmed by the heaters (g) through a blower 07) through a duct (to) as shown by the dotted arrow in the figure. By circulating it, the inside of the apparatus (b) is brought to 100° C. to 120° C., and the water adhering to the steel plate (2) is dried and removed.

工程(8)を実行するための下地処理装置器は下地処理
剤の)を貯溜した容器(ハ)内に浸漬せられた図中矢印
の如く回転するローラ(43,それと接触するローラ(
ロ)及びそれに接触し、移送されて来る鋼板(2)に当
接するローラQ5から成るロールコータ(4Qを有して
いる。下地処理剤のはシリカ(二酸化ケイ素)等の無機
化合物を結合剤としてそれにリン酸亜鉛系薬品を混入せ
しめて適度の粘性を具備して構成されており、ロー20
3表面に付着した下地処理剤[F]はローラ(4蜀を介
してローラ(ハ)K運ばれ、ローラ(49によって鋼板
(2)上面に後述する適当な厚みで塗布される。この塗
布時間は鋼板(2)がローラ(句を通過する間の数秒間
である。
The surface treatment device for carrying out step (8) is a roller (43) rotating as shown by the arrow in the figure, which is immersed in a container (c) storing a surface treatment agent), and a roller (43) in contact with the roller (43).
B) and a roll coater (4Q) consisting of a roller Q5 that comes into contact with the steel plate (2) being transferred.The base treatment agent uses an inorganic compound such as silica (silicon dioxide) as a binder. It is made up of a mixture of zinc phosphate chemicals and has an appropriate viscosity.
The base treatment agent [F] adhering to the surface of the steel plate (2) is conveyed to the roller (C) via the roller (4) and applied to the upper surface of the steel plate (2) by the roller (49) to an appropriate thickness as described below. is the few seconds during which the steel plate (2) passes through the roller.

ここで鋼板(2)K下地処理を行う場合、従来では所謂
化学反応方式が用いられていた。この化学反応方式は水
に溶かしたリン酸亜鉛系薬品を鋼板表面に流し、鋼板表
面との間で化学反応を生せしめて鋼板表面K IJン酸
酸鉛鉛被膜形成させるもので。
Here, when performing the K base treatment on the steel plate (2), a so-called chemical reaction method has conventionally been used. This chemical reaction method involves pouring a zinc phosphate-based chemical dissolved in water onto the surface of a steel plate, causing a chemical reaction with the surface of the steel plate to form a lead phosphate coating on the surface of the steel plate.

これによると被膜の形成に時間(通常3分程度の反応時
間)が必要であり、又、被膜を厚くする事が困難である
(通常は0.05μ〜0.1μ)。
According to this method, it takes time to form a film (usually a reaction time of about 3 minutes), and it is difficult to make the film thick (usually 0.05 μm to 0.1 μm).

これに対して本発明の如(シリカを結合剤に用いた下地
処理剤(P)をロールコータに)Kよって鋼板(2)に
塗布すれば、塗布時間は数秒間で済み、又。
On the other hand, if the surface treatment agent (P) using silica as a binder is applied to the steel plate (2) using a roll coater as in the present invention, the application time is only a few seconds.

適当な厚みを有して塗布できるため(0,5μ〜1μ〕
、完成した塗装鋼板の肉厚感に寄与する。
Because it can be applied to an appropriate thickness (0.5μ to 1μ)
, contributes to the thickness of the finished coated steel plate.

下地処理剤田)を塗布された鋼板(2)は、次に工程(
9)を実行する乾燥装置αηに移送され、そこで遠赤外
線ヒータ(4aにより50秒間乾燥せられる。この時の
装置αη内の温度は100℃〜160℃とされている。
The steel plate (2) coated with a surface treatment agent is then subjected to a process (
9), where it is dried by a far infrared heater (4a) for 50 seconds.The temperature inside the apparatus αη at this time is 100°C to 160°C.

その後鋼板(2)は工程αGを火打する塗装装置α9の
塗装ブース(4!l内に移送される。塗装ブース09内
ではタンク印から所定の色に着色されたポリエステル系
の粉体塗料が輸送管6〃を通り、ポンプ62によりパル
プ(ハ)を経てノズル54)より吹き出されており、こ
れによって移送されて来た鋼板(2)上面に粉体塗料が
所定の厚み(35μ〜40μ〕で静電塗装される。ブー
スμs内の空気はフィルター(至)を介して送風機関に
より常時排出されており、ブース(49内はこれによっ
て若干負圧とされ、これによって塗料の漏出を防止して
いる。
After that, the steel plate (2) is transferred to the coating booth (4!l) of the coating device α9 that fires the process αG.In the coating booth 09, polyester powder paint colored in a predetermined color is transported from the tank mark. The powder coating is passed through the pipe 6〃, passed through the pulp (c) by the pump 62, and is blown out from the nozzle 54), and the powder coating is applied to the upper surface of the steel plate (2) to a predetermined thickness (35μ to 40μ). Electrostatic painting is carried out.The air inside the booth μs is constantly exhausted by a blower engine through a filter (49), which creates a slight negative pressure inside the booth (49), which prevents paint from leaking. There is.

ここで通常の溶媒を用いた塗装では漏出による公害対策
が犬がかりとなる欠点があるが、上述の如き粉体塗料に
よる静電塗装ではブース器内を若干負圧とするのみによ
って公害防止が容易に行える。
Painting using ordinary solvents has the disadvantage that pollution prevention due to leakage is difficult to prevent, but electrostatic painting using powder paints as described above makes it easy to prevent pollution by simply creating a slight negative pressure inside the booth. can be done.

ブース(4ω内で塗料を施された鋼板(2)は次に工程
0υを実行する焼付乾燥装置6ηに移送され、そこに複
数設けられた遠赤外線ヒータ蕊によって加熱され、塗付
された粉体塗料が溶融乾燥硬化する。その後鋼板(2)
は工程α2を実行する冷却装置■に移送される。冷却装
置■内は送風機日によって外気が循環せられており、こ
れによって鋼板(2)の温度を低下せしめ、塗装が終了
する。
The steel plate (2) coated in the booth (4ω) is then transferred to the baking dryer 6η that performs the process 0υ, where it is heated by a plurality of far-infrared heaters, and the coated powder is heated. The paint melts, dries, and hardens.Then the steel plate (2)
is transferred to cooling device (2) which executes step α2. Outside air is circulated inside the cooling device by a blower, which lowers the temperature of the steel plate (2) and finishes the painting.

第3図に塗装が完了した鋼板(2)の断面図を示す。Figure 3 shows a cross-sectional view of the steel plate (2) that has been painted.

13は素材となるキルド鋼板1日は亜鉛メッキ層、その
上層に下地処理剤telがあり、更にその上に塗料層但
4が形成されている。塗料層(2)は粉体塗料にて構成
するため前述り)如く35μ〜40μの厚みを構成でき
塗装表面の肉持ち観を喚起する作用を奏する。
Reference numeral 13 denotes a killed steel sheet as a raw material, on which a galvanized layer is coated, a surface treatment agent tel is provided on top of the galvanized layer, and a paint layer 4 is further formed on top of the galvanized layer. Since the paint layer (2) is made of powder paint, it can have a thickness of 35 to 40 μm as described above, and has the effect of evoking the appearance of a solid coated surface.

次に塗装が完了した鋼板(2)を例えば冷蔵庫扉の外板
に成形する手順を第4図に例示〕−る。(2A)は塗装
済みの鋼板(2)の四隅を切除し、所定形状に打抜き加
工した鋼板を示す。鋼板(2A)は次にプレス絞り機1
6)Kてプレスされて縁部に立壁を形成され((2B)
で示す。)、次に折曲機67)にて立壁縁部を内側に折
曲して7ランジを形成し扉の外板((2C)で示す。〕
を完成する。この様なプレス。
Next, the procedure for forming the coated steel plate (2) into, for example, the outer panel of a refrigerator door is illustrated in FIG. (2A) shows a steel plate obtained by cutting off the four corners of the painted steel plate (2) and punching it into a predetermined shape. The steel plate (2A) is then passed through press drawing machine 1.
6) K and pressed to form a standing wall on the edge ((2B)
Indicated by ), then the edge of the standing wall is bent inward using a bending machine 67) to form 7 lunges, and the outer panel of the door (shown as (2C)) is formed.
complete. Press like this.

折曲作業によっても下地処理剤「)によって塗料層図は
良好に密着しているため、折曲部分において塗料の剥離
等が発生しにくい。
Even during the bending process, the paint layer is well adhered by the base treatment agent (), so peeling of the paint at the bends is less likely to occur.

(ト)発明の効果 本発明によれば鋼板をシート状で塗装するので成形後に
行う場合に比して設備規模の縮小が図れる。又、粉体塗
料を塗布し加熱硬化させるので塗膜の厚みの確保が容易
となり所謂肉持ち観のある塗装が可能となる。特に本発
明では下地処理剤に無機化合物を結合剤として用い適度
の粘度を有せしめてロールコータにより鋼板に塗布する
ので、所請化学反応により下地処理を行うものに比して
短時間で処理することができる。従って機器製造現場で
の塗装設備の縮小と時間の短縮を達成する事ができる。
(G) Effects of the Invention According to the present invention, since the steel plate is painted in sheet form, the scale of the equipment can be reduced compared to the case where painting is done after forming. Furthermore, since the powder coating is applied and cured by heating, it is easy to ensure the thickness of the coating film, and it is possible to achieve a so-called durable coating. In particular, in the present invention, the base treatment agent uses an inorganic compound as a binder to give it an appropriate viscosity and is applied to the steel plate using a roll coater, so the process can be completed in a shorter time than when the base treatment is performed by a required chemical reaction. be able to. Therefore, it is possible to reduce the amount of painting equipment and time at the equipment manufacturing site.

【図面の簡単な説明】[Brief explanation of the drawing]

各図は本発明の実施例を示すもので、第1図は塗装鋼板
の製造工程を示す図、第2図は塗装鋼板製造装置の概略
断面図、第3図は塗装済み鋼板の拡大断面図、第4図は
塗装済み鋼板の成形行程を示す図である。 (2)・・・鋼板、  Q9・・・塗装装置、(4G・
・・下地処理装置、(4Q・・・ロールコータ、 6で
・・・焼付乾燥装置、囚・・・塗装鋼板製造装置、  
CP+・・・下地処理剤。
Each figure shows an example of the present invention. Figure 1 is a diagram showing the manufacturing process of a painted steel plate, Figure 2 is a schematic sectional view of a painted steel plate manufacturing apparatus, and Figure 3 is an enlarged sectional view of a painted steel plate. , FIG. 4 is a diagram showing the forming process of a painted steel plate. (2)...Steel plate, Q9...Painting equipment, (4G/
... Surface treatment equipment, (4Q... Roll coater, 6... Baking drying equipment, Cap... Painted steel plate manufacturing equipment,
CP+: Ground treatment agent.

Claims (1)

【特許請求の範囲】[Claims] 1、シート状鋼板を脱脂水洗後乾燥せしめ、ついで無機
化合物を結合剤とした下地処理剤をロールコータにより
前記鋼板に塗布して乾燥させた後熱硬化性の粉体塗料を
塗布し加熱硬化させる事を特徴とする塗装鋼板の製造方
法。
1. After degreasing and washing the sheet steel plate with water, dry it, then apply a base treatment agent using an inorganic compound as a binder to the steel plate using a roll coater and dry it, then apply a thermosetting powder coating and heat harden it. A method for producing a painted steel plate characterized by:
JP20245086A 1986-08-28 1986-08-28 Preparation of painted steel plate Pending JPS6359374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20245086A JPS6359374A (en) 1986-08-28 1986-08-28 Preparation of painted steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20245086A JPS6359374A (en) 1986-08-28 1986-08-28 Preparation of painted steel plate

Publications (1)

Publication Number Publication Date
JPS6359374A true JPS6359374A (en) 1988-03-15

Family

ID=16457726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20245086A Pending JPS6359374A (en) 1986-08-28 1986-08-28 Preparation of painted steel plate

Country Status (1)

Country Link
JP (1) JPS6359374A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100894822B1 (en) 2007-09-12 2009-04-24 상신브레이크주식회사 Shower device for electrostatic painting of automobile brake pad
CN103203307A (en) * 2013-03-27 2013-07-17 成都阳光铝制品有限公司 Production technique of fluorocarbon paint coated profiles
JP2014028026A (en) * 2012-07-31 2014-02-13 Universal Entertainment Corp Method for manufacturing game machine, and method for removing coating of game machine housing
JP2014223327A (en) * 2014-06-13 2014-12-04 株式会社ユニバーサルエンターテインメント Method for manufacturing game machine and method for peeling coating of game machine housing
CN106000722A (en) * 2016-06-27 2016-10-12 浙江飞越洁具制造有限公司 Paint-spraying and drying device for glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100894822B1 (en) 2007-09-12 2009-04-24 상신브레이크주식회사 Shower device for electrostatic painting of automobile brake pad
JP2014028026A (en) * 2012-07-31 2014-02-13 Universal Entertainment Corp Method for manufacturing game machine, and method for removing coating of game machine housing
CN103203307A (en) * 2013-03-27 2013-07-17 成都阳光铝制品有限公司 Production technique of fluorocarbon paint coated profiles
JP2014223327A (en) * 2014-06-13 2014-12-04 株式会社ユニバーサルエンターテインメント Method for manufacturing game machine and method for peeling coating of game machine housing
CN106000722A (en) * 2016-06-27 2016-10-12 浙江飞越洁具制造有限公司 Paint-spraying and drying device for glass

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