KR101699224B1 - Indication Device For Opening and Closing Appearance of Valve - Google Patents

Indication Device For Opening and Closing Appearance of Valve Download PDF

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Publication number
KR101699224B1
KR101699224B1 KR1020160083396A KR20160083396A KR101699224B1 KR 101699224 B1 KR101699224 B1 KR 101699224B1 KR 1020160083396 A KR1020160083396 A KR 1020160083396A KR 20160083396 A KR20160083396 A KR 20160083396A KR 101699224 B1 KR101699224 B1 KR 101699224B1
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South Korea
Prior art keywords
valve
closing
indicator
gas pipe
closed
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KR1020160083396A
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Korean (ko)
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김용숙
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이파워텍(주)
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0058—Optical means, e.g. light transmission, observation ports

Abstract

The present invention relates to a device to display whether a valve is opened or closed, capable of confirming whether a gas duct is opened or closed by being installed on a grip of a valve rotated in one direction or the other direction to open or close the gas duct. The present invention comprises: a rear panel installed on the gas duct; an operating gear connected with the grip of the valve to be rotated with the valve; a vertical gear geared to the operating gear to be rotated, and including an opening indication; and a front panel installed in front of the vertical gear, and including a penetration hole exposing the opening indication when the gas duct is opened. As such, the present invention is capable of easily opening or closing the valve, and checking a clear current state of the valve.

Description

밸브 개폐상태 표시장치{Indication Device For Opening and Closing Appearance of Valve}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a valve opening /

본 발명은 밸브 개폐상태 표시장치에 관한 것으로서, 특히 밸브의 개폐상태를 용이하게 확인할 수 있는 밸브 개폐상태 표시장치에 관한 것이다.The present invention relates to a valve opening / closing state display device, and more particularly, to a valve opening / closing state display device capable of easily checking the valve opening / closing state.

현재 운행되고 있는 765KV에서 25.8KV까지의 모든 가스절연부하개폐기(GIS, Gas Insulated Load Break Switch)에는 가스구획을 구분하거나 가스를 충진 또는 배기하기 위하여 가스밸브가 설치되어 있다.All gas insulated load break switches (GIS) from 765 KV to 25.8 KV are equipped with gas valves to separate gas compartments or to fill or discharge gas.

이러한 가스밸브는 평상시에 폐쇄된 상태를 유지해야만 하는 밸브가 있고, 반드시 개방되어 있어야만 하는 밸브가 있다. 현재는 개방 또는 폐쇄와 같은 메시지가 기재된 꼬리표를 달아놓는 방법 등으로 개방 또는 폐쇄상태를 확인하고 있는데, 이를 통해서 밸브의 상태가 정상적으로 폐쇄 또는 개방된 상태인지를 명확하게 식별할 수 없는 문제점이 있다.These gas valves include valves that must remain closed normally, and valves that must be open. There is a problem that the state of the valve is normally closed or the state of the valve is not clearly discriminated by checking whether the valve is opened or closed by a method of placing a tag in which a message such as opening or closing is put.

출원번호:10-2007-0048725 (공개번호:10-2008-0101513, 발명의 명칭 : 밸브의 개폐 상태 표시 장치)10-2007-0048725 (Publication No. 10-2008-0101513, entitled " Opening and Closing Display of Valve)

본 발명은 상기한 종래기술의 문제점을 해결하기 위하여 안출된 것으로서, 밸브의 개폐상태를 용이하게 식별할 수 있을 뿐만 아니라 밸브의 개폐상태를 용이하게 변경할 수 있는 밸브 개폐상태 표시장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve open / close state display device which can easily identify an open / close state of a valve and can easily change the open / .

상기한 과제를 해결하기 위한 본 발명에 의한 밸브 개폐상태 표시장치는 일방향 또는 타방향으로 회전시켜 가스관로를 개방 또는 폐쇄하는 밸브의 손잡이에 연계설치되어 상기 가스관로가 개방되었는지 폐쇄되었는지를 확인하기 위한 것으로서, 상기 가스관로 상에 설치되는 후방패널과; 상기 밸브의 손잡이에 연결되어 함께 회전하는 구동기어와; 상기 구동기어에 치결합되어 회전하고, 열림표시가 형성된 종동기어와; 상기 종동기어의 전방에 설치되고, 상기 가스관로가 개방되었을 때 상기 열림표시를 노출시키는 투시홀이 형성된 전방패널;을 포함하여 구성된다.According to an aspect of the present invention, there is provided a valve open / close state display device for opening and closing a gas pipe by rotating the gas pipe in one direction or the other direction to check whether the gas pipe is opened or closed A rear panel installed on the gas pipe; A drive gear connected to the handle of the valve and rotated together; A driven gear rotatably coupled to the drive gear and having an open indication; And a front panel installed in front of the driven gear and having a sight hole for exposing the open indication when the gas duct is opened.

여기서, 상기 종동기어는 상기 열림표시 옆에 돌출턱이 형성되고, 상기 후방패널에는 닫힘표시가 포함된 닫힘표시구가 회동가능하게 설치되어, 상기 가스관로가 폐쇄되는 방향으로 상기 종동기어가 회전할 때 상기 닫힘표시구가 상기 돌출턱에 밀려 회동함으로써 상기 투시홀을 통해 닫힘표시가 노출된다.In this case, the driven gear is provided with a protruding protuberance on the side of the open indication, a closed indicator including a closed indication is rotatably installed on the rear panel, and the driven gear is rotated in the direction in which the gas pipe is closed The closing indicator is pushed by the protruding jaw and is thereby rotated to expose the closing indication through the through hole.

그리고, 상기 후방패널에는 상기 닫힘표시구의 타단과 연결되는 스프링이 설치되어, 상기 밸브의 손잡이를 회전시켜 상기 가스관로가 개방되는 방향으로 종동기어를 회전시키면 상기 스프링이 상기 닫힘표시구를 잡아당겨 닫힘표시가 투시홀을 통해 노출되지 않는다.When the driven gear is rotated in the direction in which the gas pipe is opened by rotating the handle of the valve, the spring is pulled to close the closed indicator, The mark is not exposed through the through hole.

상기와 같이 구성되는 본 발명의 밸브 개폐상태 표시장치는 구동기어에 연결된 밸브의 손잡이를 회전시키는 동작만으로 밸브를 용이하게 개방상태로 놓거나 폐쇄상태로 놓을 수 있고, 밸브의 개방상태 또는 폐쇄상태를 유지하여 현재 밸브가 어떤 상태인지를 명확하게 확인할 수 있도록 하는 이점이 있다.The valve open / closed state display apparatus of the present invention configured as described above can easily open or close the valve by only rotating the handle of the valve connected to the drive gear, and can open or close the valve So that it is possible to clearly identify the state of the present valve.

도 1은 본 발명에 의한 밸브 개폐상태 표시장치의 사시도.
도 2는 본 발명에 의한 밸브 개폐상태 표시장치의 분해사시도.
도 3a 및 도 3b는 본 발명에 의한 밸브 개폐상태 표시장치의 동작모습을 보인 도.
도 4는 본 발명에 의한 밸브 개폐상태 표시장치의 설치모습을 보인 도.1 is a perspective view of a valve opening / closing state display device according to the present invention.
2 is an exploded perspective view of a valve opening / closing state display device according to the present invention.
FIGS. 3A and 3B are views showing an operation of a valve open / close state display apparatus according to the present invention; FIGS.
4 is a view showing a state in which the valve opening / closing state display device according to the present invention is installed.

이하, 본 발명에 의한 밸브 개폐상태 표시장치의 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a valve open / close state display apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 의한 밸브 개폐상태 표시장치의 사시도이고, 도 2는 본 발명에 의한 밸브 개폐상태 표시장치의 분해사시도이며, 도 3a 및 도 3b는 본 발명에 의한 밸브 개폐상태 표시장치의 동작모습을 보인 도이다.FIG. 1 is a perspective view of a valve opening / closing state display device according to the present invention, FIG. 2 is an exploded perspective view of a valve opening / closing state display device according to the present invention, It is the figure which showed the figure.

그리고, 도 4는 본 발명에 의한 밸브 개폐상태 표시장치의 설치모습을 보인 도이다.4 is a view showing an installation state of the valve opening / closing state display device according to the present invention.

본 발명에 의한 밸브 개폐상태 표시장치는 일방향 또는 타방향으로 회전시켜 가스관로(P)를 개방 또는 폐쇄하는 밸브의 손잡이(V)에 연계 설치되는 것으로서, 특히 가스절연부하개폐기(GIS, Gas Insulated Load Break Switch)의 가스관로(P)가 개방되었는지 폐쇄되었는지를 시각적으로 명확하게 확인하기 위한 것이며, 동시에 가스관로(P)의 개방과 폐쇄를 명확하게 표시하기 위한 것이다.The valve open / close state display apparatus according to the present invention is installed in connection with a handle V of a valve that opens or closes a gas pipe path P by rotating in one direction or the other direction. In particular, a gas insulated load (GIS) To clearly and visually confirm whether the gas pipe P of the break switch is open or closed and at the same time to clearly indicate the opening and closing of the gas pipe P. [

상기와 같은 본 발명에 의한 밸브 개폐상태 표시장치는 후방패널(10)과, 상기 후방패널(10)의 전방에 설치되는 구동기어(20)와, 상기 구동기어(20)에 치결합되어 회전하는 종동기어(30)와, 상기 종동기어(30)의 전방에 설치되는 닫힘표시구(40)와, 상기 후방패널(10)과 종동기어(30)를 연결하는 스프링(50)과, 상기 종동기어(30)의 전방에 설치되는 전방패널(60)로 구성된다.The valve opening and closing state display apparatus according to the present invention includes a rear panel 10, a driving gear 20 disposed in front of the rear panel 10, A closing indicator 40 provided in front of the driven gear 30; a spring 50 connecting the rear panel 10 and the driven gear 30; And a front panel 60 installed in front of the front panel 30.

상기 후방패널(10)은 상기 가스관로(P) 상에 설치되는 것으로서, 상기 밸브의 손잡이(V)이 중앙에 연결된 회전축이 상기 후방패널(10)을 관통한다. 상기 밸브의 손잡이(V)는 회전축을 중심으로 회전함으로써 상기 가스관로(P)를 개폐한다.The rear panel 10 is installed on the gas pipe path P and a rotary shaft through which the handle V of the valve is connected to the center passes through the rear panel 10. [ The handle (V) of the valve rotates around a rotation axis to open and close the gas pipe path (P).

상기 구동기어(20)는 상기 밸브의 손잡이(V)에 연결되어 밸브의 손잡이(V)와 함께 회전한다. 즉 상기 밸브의 손잡이(V)의 중앙에 구비되는 회전축에 상기 구동기어(20)의 중앙부분이 연결되어, 밸브의 손잡이(V)를 회전시켰을 때 회전축과 함께 구동기어(20)가 회전한다. The driving gear 20 is connected to the handle V of the valve and rotates together with the handle V of the valve. That is, the central portion of the drive gear 20 is connected to a rotary shaft provided at the center of the handle V of the valve, and the drive gear 20 rotates together with the rotary shaft when the handle V of the valve is rotated.

상기 종동기어(30)는 상기 후방패널(10)과 전방패널(60) 사이에 회전가능하게 설치되는 것으로서, 상기 구동기어(20)에 치결합된다. 이러한 종동기어(30)는 구동기어(20)보다 크게 형성되어 그 기어치가 구동기어(20)의 기어치보다 3배 정도 많이 형성된다.The driven gear 30 is rotatably installed between the rear panel 10 and the front panel 60 and is engaged with the driving gear 20. This driven gear 30 is formed to be larger than the drive gear 20 so that the gear teeth thereof are formed three times larger than the gear teeth of the drive gear 20.

상기와 같은 종동기어(30)는 열림표시(31)가 일측에 형성되고, 상기 열림표시(31) 옆에 돌출턱(32)이 돌출 형성된다.The driven gear 30 has the open indicator 31 on one side and the protruding protuberance 32 protrudes on the side of the open indicator 31. [

상기 열림표시(31)는 ‘열림’이라는 한글 문자 형태일수도 있고, 다른 나라의 문자나 그 밖에 가스관로(P)가 개방되었다는 것을 알 수 있는 문자나 도형 어느 것이나 상관없다.The open sign 31 may be in the form of a Hangul character "open" or may be a letter or a figure that can be recognized as a character of another country, or that the gas pipe P has been opened.

상기 돌출턱(32)은 일정한 곡률을 갖는 곡선 형태의 돌출 라인으로서, 이 돌출턱(32)은 종동기어(30)와 함께 회전하여 상기 닫힘표시구(40)를 민다.The protruding jaw 32 is a curved protruding line having a constant curvature. The protruding jaw 32 rotates together with the driven gear 30 to push the closing indicator 40.

상기 닫힘표시구(40)는 일단이 상기 후방패널(10)에 회동가능하게 표시되는 것으로서, 후방패널(10)과 연결된 부분을 제외한 나머지 부분은 상기 종동기어(30)의 전방측에 위치된다. 이러한 닫힘표시구(40)에는 닫힘표시(41)가 형성되는데, 이 닫힘표시(41)는 상기 열림표시(31)와 같이 닫힘 상태를 알려줄 수 있는 문자 또는 도형 등으로 구성된다.One end of the closing indicator 40 is rotatably displayed on the rear panel 10 and the remaining portion of the closing indicator 40 is positioned on the front side of the driven gear 30 except for a portion connected to the rear panel 10. [ The closure indication 41 is formed in the closure indicator 40. The closure indication 41 is composed of a character, a figure or the like capable of indicating a closed state, such as the open indicator 31. [

상기 스프링(50)은 일단이 상기 후방패널(10)에 연결 설치되고 타단이 상기 닫힘표시구(40)의 타단에 연결되어 닫힘표시구(40)에 탄성력을 제공한다.One end of the spring 50 is connected to the rear panel 10 and the other end is connected to the other end of the closing indicator 40 to provide an elastic force to the closing indicator 40.

상기 전방패널(60)은 상기 후방패널(10)의 전방에 설치되는 것으로서, 후방패널(10)과의 사이에 일정한 공간이 형성된다. 이렇게 후방패널(10)과의 사이에 상기 종동기어(30)와 닫힘표시구(40) 및 스프링(50)이 위치된다.The front panel (60) is installed in front of the rear panel (10), and a certain space is formed between the rear panel (10). Thus, the driven gear 30, the closing indicator 40, and the spring 50 are positioned between the rear panel 10 and the rear panel 10.

이러한 전방패널(60)에는 투시홀(61)이 형성되는데, 상기 투시홀(61)은 상기 가스관로(P)가 개방되었을 때는 상기 열림표시(31)를 노출시키고, 상기 가스관로(P)가 폐쇄되었을 때는 상기 닫힘표시(41)를 노출시킨다.A through hole 61 is formed in the front panel 60. The through hole 61 exposes the open indication 31 when the gas pipe P is open, And when it is closed, the closing indication 41 is exposed.

상기와 같이 구성되는 본 발명에 의한 밸브 개폐상태 표시장치의 활용 상태를 간단히 설명하면 다음과 같다.The utilization state of the valve open / close state display apparatus according to the present invention will be briefly described below.

가스관로(P)를 개폐하는 밸브의 손잡이(V)를 회전시켜 조임으로써 종동기어(30)를 가스관로(P)가 폐쇄되는 방향으로 회전시키면, 상기 종동기어(30)가 회전을 하면서 돌출턱(32)이 닫힘표시구(40)를 밀어 회동을 시킨다. 상기 돌출턱(32)에 밀려 회동을 하는 닫힘표시구(40)는 전방패널(60)의 투시홀(61)에 이르러 닫힘표시(41)를 외부에 노출시킨다. 이때 스프링(50)은 닫힘표시구(40)의 회동에 의해 당기는 힘을 받아 그 길이가 늘어난다.When the driven gear 30 is rotated in the direction in which the gas pipe path P is closed by rotating and tightening the handle V of the valve for opening and closing the gas pipe path P, the driven gear 30 rotates, (32) pushes the closed indicator (40) to rotate. A closing indicator 40, which is pivotally moved by the protruding jaw 32, reaches the sight hole 61 of the front panel 60 and exposes the closing indicator 41 to the outside. At this time, the spring (50) is pulled by the rotation of the closing indicator (40) and its length is increased.

이렇게 투시홀(61)을 통해 닫힘표시(41)가 노출된 것을 보고 사람들은 가스관로(P)가 폐쇄된 것을 알 수 있다.It can be seen that the person closes the gas pipe line P when the closing indication 41 is exposed through the through-hole 61.

그리고, 가스관로(P)를 폐쇄하기 위하여 조여져 있던 상기 밸브의 손잡이(V)를 가스관로(P)를 개방하는 방향으로 회전시켜 상기 종동기어(30)가 가스관로(P)가 개방되는 방향으로 회전되도록 하면, 서로 밀착되어 있던 닫힘표시구(40)와 돌출턱(32)은 이격되고, 상기 스프링(50)은 늘어났던 길이가 줄어들면서 상기 닫힘표시구(40)를 잡아당겨 닫힘표시(41)가 투시홀(61)을 통해 노출되지 않도록 한다. 즉 전방패널(60)의 투시홀(61)을 통해 외부로 노출되던 닫힘표시(41)가 닫힘표시구(40)의 회동에 의해 전방패널(60)에 가려지게 된다. 그리고, 열림표시(31)가 상기 투시홀(61)을 통해 노출된다. The handle V of the valve which has been tightened to close the gas pipe path P is rotated in the direction of opening the gas pipe path P so that the driven gear 30 is moved in the direction in which the gas pipe path P is opened The closing indicator 40 and the protruding protuberance 32 which are in close contact with each other are spaced apart from each other and the closing indication 40 is pulled by the closing indicator 41 while the length of the spring 50 is reduced, So that it is not exposed through the through hole 61. The closure indication 41 which is exposed to the outside through the through hole 61 of the front panel 60 is blocked by the front panel 60 by the rotation of the closure indicator 40. [ Then, the opening mark 31 is exposed through the through hole 61.

10: 후방패널 20: 구동기어
30: 종동기어 31: 열림표시
32: 돌출턱 40: 닫힘표시구
41: 닫힘표시 50: 스프링
60: 전방패널 61: 투시홀
P: 가스관로 V: 밸브의 손잡이10: rear panel 20: drive gear
30: driven gear 31: open indication
32: protruding jaw 40: closed indicator
41: closing indication 50: spring
60: front panel 61: perspective hole
P: Gas pipe V: Valve handle

Claims (3)

일방향 또는 타방향으로 회전시켜 가스관로(P)를 개방 또는 폐쇄하는 밸브의 손잡이(V)에 연계설치되어, 상기 가스관로(P)가 개방되었는지 폐쇄되었는지를 확인하기 위한 것으로서,
상기 가스관로(P) 상에 설치되는 후방패널(10)과; 상기 밸브의 손잡이(V)에 연결되어 함께 회전하는 구동기어(20)와; 상기 구동기어(20)에 치결합되어 회전하고, 열림표시(31)가 형성된 종동기어(30)와; 상기 종동기어(30)의 전방에 설치되고, 상기 가스관로(P)가 개방되었을 때 상기 열림표시(31)를 노출시키는 투시홀(61)이 형성된 전방패널(60);을 포함하되,
상기 종동기어(30)는 상기 열림표시(31) 옆에 돌출턱(32)이 형성되고, 상기 후방패널(10)에는 닫힘표시(41)가 포함된 닫힘표시구(40)가 회동가능하게 설치되어,
상기 가스관로(P)가 폐쇄되는 방향으로 상기 종동기어(30)가 회전할 때 상기 닫힘표시구(40)가 상기 돌출턱(32)에 밀려 회동함으로써 상기 투시홀(61)을 통해 닫힘표시(41)가 노출되는 것을 특징으로 하는 밸브 개폐상태 표시장치.
And is connected to the handle V of the valve for opening or closing the gas pipe path P so as to confirm whether the gas pipe path P is opened or closed,
A rear panel 10 installed on the gas pipe path P; A driving gear (20) connected to the handle (V) of the valve and rotating together; A driven gear (30) coupled to the drive gear (20) and rotated and having an open indicator (31); And a front panel 60 provided in front of the driven gear 30 and having a sight hole 61 for exposing the open sign 31 when the gas pipe path P is opened,
The driven gear 30 is provided with a protrusion 32 on the side of the open indicator 31 and a closed indicator 40 including a closed indicator 41 is rotatably mounted on the rear panel 10 Became,
When the driven gear 30 rotates in a direction in which the gas pipe path P is closed, the closing indicator 40 is pushed by the protruding jaw 32 so as to be closed through the sight hole 61 41) are exposed.
삭제delete 청구항 1에 있어서,
상기 후방패널(10)에는 상기 닫힘표시구(40)의 타단과 연결되는 스프링(50)이 설치되어,
상기 밸브의 손잡이(V)를 회전시켜 상기 가스관로(P)가 개방되는 방향으로 종동기어(30)를 회전시키면 상기 스프링(50)이 상기 닫힘표시구(40)를 잡아당겨 닫힘표시(41)가 투시홀(61)을 통해 노출되지 않는 것을 특징으로 하는 밸브 개폐상태 표시장치.The method according to claim 1,
The rear panel 10 is provided with a spring 50 connected to the other end of the closing indicator 40,
When the handle V of the valve is rotated and the driven gear 30 is rotated in the direction in which the gas pipe path P is opened, the spring 50 pulls the closing indicator 40, Is not exposed through the through-hole (61).
KR1020160083396A 2016-07-01 2016-07-01 Indication Device For Opening and Closing Appearance of Valve KR101699224B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112303331A (en) * 2020-11-16 2021-02-02 航天科工哈尔滨风华有限公司电站设备分公司 Gas switch fixing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127981U (en) * 1983-02-17 1984-08-28 旭化成株式会社 Valve open/close indicator
JPH068586U (en) * 1992-07-07 1994-02-04 大建工業株式会社 Double floor structure
KR20070048725A (en) 2004-08-10 2007-05-09 디에스엠 아이피 어셋츠 비.브이. Coating composition, coating and an object coated with the coating composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127981U (en) * 1983-02-17 1984-08-28 旭化成株式会社 Valve open/close indicator
JPH068586U (en) * 1992-07-07 1994-02-04 大建工業株式会社 Double floor structure
KR20070048725A (en) 2004-08-10 2007-05-09 디에스엠 아이피 어셋츠 비.브이. Coating composition, coating and an object coated with the coating composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112303331A (en) * 2020-11-16 2021-02-02 航天科工哈尔滨风华有限公司电站设备分公司 Gas switch fixing device

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