Dab tsi yog qhov hluav taws xob siab ct?

High voltage ct muaj ntau cov windings tab sis tib qho windings thib ob kom lawv tuaj yeem siv nyob rau hauv kev sib cais thiab kev sib txuas nrog ntau hom kev tiv thaiv. Nws ua lub luag haujlwm tseem ceeb hauv kev hloov siab siab tshaj plaws tam sim no kom muaj voltage qis tam sim no rau kev ntsuas thiab kev tiv thaiv cov hluav taws xob.

Qhov zoo ntawm cov hluav taws xob siab ct

Ua kom muaj kev ruaj ntseg
Hauv kev faib tawm thiab kis tau cov xwm txheej tsis zoo, HV CT yog qhov tseem ceeb rau kev tswj kev nyab xeeb ib puag ncig. Lawv muab cov teeb liab tam sim no uas siv los ntawm kev tso npe tiv thaiv kom pom qhov xwm txheej tsis zoo xws li luv luv hluav taws xob lossis ntau dua. Los ntawm kev muab cov ntaub ntawv tseem ceeb no, HD

Kev ntsuas kev ntsuas thiab tshuaj xyuas
Los ntawm kev them nqi-theem kom nyuaj kev tiv thaiv kev tiv thaiv kev tiv thaiv thiab cov khoom siv automation yog qhov tsim nyog rau kev them nqi kho mob thiab cov nyiaj tau los.

Tiv thaiv kev puas tsuaj thiab downtime
CT txo cov sij hawm tawm hws thiab cov nyiaj poob los ntawm cov haujlwm tseem ceeb hauv kev tswj hwm lub luag haujlwm tseem ceeb. Los ntawm kev tiv thaiv kev tsis pom kev npaj txhij txog thiab lub sijhawm kho dua tshiab, HV CT pab txhawb rau qhov kev ntseeg siab tag nrho thiab cov khoom lag luam ntawm qhov chaw.

Hloov pauv tam sim no

Tam sim no cov tam sim no nyob rau hauv raws li GB20840.2-2014 thiab cov qauv
Cov qib rated rwb thaiv tsev: 12/42 / 75kv
Rated theem satterarycurrent: 5A lossis 1a
Cov zaus ntsuas: 50Hz lossis 60Hz
Ambient Kub: -5℃~ +40 degree

Nruab nrab voltage tam sim no hloov pauv theem

Cov hloov pauv tam sim no tau ua raws li GB20840.2-2014Ond cov qauv IEC60044-1
Cov Nqi Rwb Thaiv Tebchaws Rwb Thaiv Tebchaws: 24/65 / 125KV
Xam rau theem nrab tam sim no: 5A lossis 1a
RATEDFREQUANCY: 50HZ lossis 60HZ
Ambient Kub: -5℃~ +40 degree

Cov hloov pauv tam sim no rau kev ntsuas

Cov hloov pauv tam sim no yog qhov tsis raug nrog GB20840.2-2014 thiab iec60044-1 cov qauv
Cov Nqi Rwb Thaiv Tebchaws Rwb Thaiv Tebchaws: 40.5 / 95 / 185Kv
Xam rau theem nrab tam sim no: 5A lossis 1a
RATEDFREQUANCY: 50HZ lossis 60HZ
Ambient Kub: -5℃~ +40 degree

15KV Tam sim no hloov pauv

Cov hloov pauv tam sim no tau raws li GB20840.2-2014 thiab iec60044-1 cov qauv
Cov qib rated rwb thaiv tsev: 12/42 / 75kv
Xam rau theem nrab tam sim no: 5A lossis 1a
Cov zaus ntsuas: 50Hz lossis 60Hz
Ambient Kub: -5℃~ +40 degree
Kev Nyab Xeeb Kev Nyab Xeeb IV

Piv 200 5 ct

Cov hloov pauv tam sim no tau raws li GB20840.2-2014 thiab iec60044-1 cov qauv
Cov Nqi Rwb Thaiv Tebchaws Rwb Thaiv Tebchaws: 40.5 / 95 / 185Kv
Xam rau theem nrab tam sim no: 5A lossis 1a
Cov zaus ntsuas: 50Hz lossis 60Hz
Ambient Kub: -25 Qib ~ +40 degree

Tam sim no hloov hluav taws xob voltage transformer Dual Core CT

Cov hloov pauv tam sim no tau raws li GB20840.2-2014 thiab iec60044-1 cov qauv
Cov Nqi Rwb Thaiv Tebchaws Rwb Thaiv Tebchaws: 40.5 / 95 / 185Kv
Xam rau theem nrab tam sim no: 5A lossis 1a
Cov Sijhawm Ntaus: 50Hz lossis60Hz
Ambient Kub: -25 Qib ~ +40 degree

High Voltage CT

Cov kab ke hloov pauv tau raws li GB20840.2-2014 thiab iec60044-1 cov qauv.
Cov qib rated rwb thaiv tsev: 12/42 / 75kv
Xam rau theem nrab tam sim no: 5A lossis 1a
RATEDFREQUANCY: 50HZ lossis 60HZ
Ambient Kub: -5℃~ +40 degree

Vim li cas thiaj xaiv peb

Peb Lub Hoobkas
Youxing Electric Co., Ltd. yog cov chaw tsim khoom tshaj lij tshwj xeeb hauv 0.5kv-66KV hloov tam sim no thiab hluav taws xob tam sim no.

Cov Kev Pabcuam Customized
Peb ua cov ncauj lus kom ntxaws ntawm peb cov neeg muas zaub xav tau thiab muab cov kev xaiv customization kom tau raws li cov neeg siv khoom.

Cov kws tshaj lij
Cov tswvcuab ntawm pawg neeg yog ua tau zoo heev thiab ua tau zoo hauv lawv txoj haujlwm tsim nyog thiab muaj kev kawm tsim nyog, kev cob qhia, thiab kev kawm ua kom tau txais txiaj ntsig zoo hauv lawv txoj haujlwm.

Siab zoo
Peb cov khoom lag luam yog tsim lossis tua cov qauv zoo heev, siv cov ntaub ntawv zoo tshaj plaws thiab tsim cov txheej txheem tshiab, cov qauv tshiab tsim kho cov khoom lag luam tshiab thiab kev ua haujlwm tau zoo.

Cov Khoom Siv Khoom Ua Si
Cov cuab yeej siv raws li kev tsim kho thev naus laus zis tshiab muaj peev xwm siab dua, kev ua tau zoo dua thiab muaj kev cia siab rau kev ntseeg tau.

Hom General Voltage CT

Tuag-Tank CT

Lub nkoj tuag-tank yog tsim nrog cov tub ntxhais thiab cov roj sib xyaw ua ke hauv cov roj insulating nyob rau hauv ib lub tank uas yog hluav taws xob hauv av. Hom kev tsim kho no muab lub zog siab rau lub zog thiab tiv thaiv kev tiv thaiv kev tiv thaiv kev ntseeg siab hauv kev ua kom hnyav hluav taws xob.
Cov TANK CAPT feem ntau tau xaiv rau siv hauv cov kab sib txuas thiab hloov chaw qhov twg ruaj khov thiab ntev ntawm cov cuab yeej tseem ceeb. Lawv cov qauv tsim muaj zog ua kom muaj kev saib xyuas tsawg tsawg thiab lub neej ntev kev pabcuam, uas muaj txiaj ntsig tshwj xeeb hauv cov chaw taws teeb lossis cov chaw muaj kev pab cuam.

Nyob-tank ct

Nyob-tank ct, nyob rau hauv sib piv, muaj lawv cov windings thiab ob peb lub zog nqus hauv insulating roj, tab sis lub tank nws tus kheej yog energized. Qhov kev teeb tsa no tso cai rau cov qauv tsim qauv thiab cov lus teb rau cov kev hloov pauv tam sim no, uas tuaj yeem ua tau zoo hauv cov ntawv thov kev tiv thaiv thiab cov kev ntsuas tam sim no.
Nyob-tank cts yog nquag siv nyob rau hauv cov tes hauj lwm thiab chaw nyob qhov chaw uas muaj qhov kev ua txhaum yog qhov tsim nyog rau kev ua haujlwm zoo.

Kev thov ntawm cov hluav taws xob siab ct

01/

Nyob rau hauv cov roj teeb Chargers:
Kev siv hluav taws xob siab cT yog siv nyob rau hauv cov roj teeb Chargers los sib txawv ntawm qhov kev ntws tam sim no los ntawm lub charger. Los ntawm kho cov naj npawb ntawm cov windings nyob rau hauv lub hloov pauv tam sim no, tus voltage thiab hluav taws xob ntsuas ntawm kev them nyiaj tam sim no tuaj yeem hloov kho.

02/

Nyob rau hauv lub hnub ci panels:
Lawv tau siv nrog lub hnub ci ci kom nce lossis txo lawv cov zis hluav taws xob. Ua li no, koj yuav tsum siv tus lej ntawm cov windings hauv lub transformer tam sim no.

03/

Hauv inverters:
Lawv tau siv rau hauv inverters kom sib txawv cov zis hluav taws xob los ntawm AC YUG VOLTAGE. Lub hom phiaj tseem ceeb yog kom muaj peev xwm them cov roj teeb nrog AC YUG VEDIGNAGE tab sis tseem muaj cov zis ntau dua li cov qauv inverter.

04/

Hloov:
High voltage ct yog siv nyob rau hauv kev hloov pauv mus sib txawv ntawm voltage dhau los ntawm kev hloov. Los ntawm kho cov naj npawb ntawm cov windings nyob rau hauv lub hloov pauv tam sim no, tus voltage thiab hluav taws xob ntsuas ntawm tus hloov pauv tuaj yeem hloov kho.

05/

Lub hwj huam nroj tsuag:
Lawv siv rau hauv cov nroj tsuag fais fab kom sib txawv lub voltage dhau los ntawm lawv. Los ntawm kho tus naj npawb ntawm cov windings hauv tus hloov pauv tam sim no, tus ntsuas hluav taws xob tam sim no thiab hluav taws xob hluav taws xob ntawm cov nroj tsuag hluav taws xob tuaj yeem hloov kho.

06/

Hauv kev Robotics:
Kev siv hluav taws xob siab ct yog siv hauv kev hlau hluav taws kom nce lossis txo qis lawv cov zis hluav taws xob.

4 kev ceev faj kom coj thaum siv cov hloov pauv tam sim no

Xyuas kom meej tias kev sib txuas polarity muaj tseeb

Cov hloov pauv tam sim no feem ntau muaj cov cim piav qhia qhov tsis zoo ntawm polarity. Yog tias polarity tsis yog, cov cuab yeej txuas pib pib ua haujlwm tsis zoo. Lub zog ntsuas yuav qhia cov kev nyeem ntawv tsis zoo thiab cov relay yuav nyeem qhov tsis zoo tam sim no. Qhov no yuav ua rau cov relay kom qhib lub dawm Circuit Courcuit Courcuit Courcuit. Nyob rau hauv ntau kis, txawm tias thaum muaj ntau yam CT hauv parallel rau tib kab, txhua tus tuaj yeem ua rau muaj tsheb luv luv.

Faib lub ntsiab lus tiv thaiv mus rau theem nrab

Cov av hloov hluav taws xob kom tsim nyog yog qhov tseem ceeb heev rau kev nyab xeeb thiab kev ua haujlwm ntawm kev sib txuas. Kev hloov pauv hloov tshiab tam sim no tau ua tiav ntawm ntau lub ntsiab lus tsis raws nraim li cov teeb meem nyob rau hauv ib txwm muaj mob. Txawm li cas los xij, nyob rau hauv rooj plaub, lub peev xwm ntawm cov ntsiab lus sib txawv ntawm cov hloov pauv tam sim no yuav nce ntawm tus nqi sib txawv. Qhov no ua rau qhov siab tam sim no ntws los ntawm CT CLE CL CLE CLRCUCT, thiab qhov tam sim no tsis yog tus sawv cev ntawm thawj tam sim no. Qhov no ua rau cov relay ntseeg tias muaj qhov txhaum nyob rau hauv nws thaj chaw tiv thaiv, thiab mus txawv tebchaws.

Tsis txhob siv kev tiv thaiv hom CT rau ntsuas lub hom phiaj thiab Vise-Versa

Kev tiv thaiv hom kev hloov pauv tam sim no yog tsim los ua haujlwm nyob rau hauv cov kev txhaum siab. Yog tias lawv txuas nrog meters meters raws li kev ua haujlwm ib txwm muaj, nws yuav cuam tshuam rau kev ntsuas qhov tseeb ntawm cov meters. Ib qho ntxiv, qhov siab tam sim no yuav dhau mus rau ntawm cov meters, ua rau muaj kev puas tsuaj rau lawv.

Tsis txhob cia cov txheej txheem theem nrab qhib thaum ua haujlwm

Yog tias CT thib ob yog qhib, nws tuaj yeem ua rau muaj kev phom sij ntawm cov neeg ua haujlwm hauv CT.an qhib CT hauv qab no:
a.high voltage yog tsim nyob rau theem nrab kev ua kom muaj kev phom sij rau kev nyab xeeb ntawm cov neeg ua haujlwm
B.acuracy hauv kev ntsuas yog cuam tshuam
C.Winding hlawv tawm vim yog overheating

Yuav Ua Li Cas Thiaj Tswj Kev Loj Hlob

Kev Ntsuam Xyuas Pom:
1.Txhua kev tshuaj xyuas ntawm lub siab voltage ct thiab nws txoj kev sib txuam nrog thiab kev sib txuas. Saib rau txhua cov cim ntawm kev puas tsuaj ntawm lub cev, xws li cov kab nrib pleb, tawg, lossis cov xov hlau tawm.

2.Cov tias cov khoom siv rwb thaiv cov hluav taws xob cov hluav taws xob siab ct windings thiab terminals yog lawm thiab pub dawb los ntawm kev coj lossis tsis zoo.

Megger Test:
Siv tus megger lossis rwb thaiv tsev tsis kam kuaj ntsuas cov rwb thaiv tsev tsis kam ntawm lub siab voltage ct.

Khij Saib Polarity:
Tom qab ua cov rwb thaiv tsev rwb thaiv tsev, ua ib qho kev kuaj xyuas polarity kom ntseeg tau tias qhov hluav taws xob siab ct yog raug.

Cov ntaub ntawv thiab txhais lus tau:
Sau cov kev sim ntsuas, suav nrog cov rwb thaiv tsev rwb thaiv tsev, polarity tshev yuav txiav txim siab yog tias lub rwb thaiv tsev txaus siab thiab muaj kev nyab xeeb rau siv.

Calibration:
Qee lub sijhawm ntsuas ntsuas ntsuas hluav taws xob siab ct kom ntseeg tau qhov tseeb hauv kev ntsuas tam sim no. Ua raws li cov chaw tsim khoom lag luam kom pom zoo.

Qhov ntsuas kub:
Xav txog qhov kev ua haujlwm kub ntawm qhov ntsuas kub ntawm cov hluav taws xob siab ct thiab ua kom lawv tsis muaj qhov kub thiab txias sab nraud.

Zam kev cuam tshuam sib nqus:
Khaws cov kev ntsuas siab ct deb ntawm cov chaw ntawm kev cuam tshuam sib nqus lossis muaj cov khoom sib nqus muaj zog sib nqus lossis cov khoom sib nqus ze, los tiv thaiv kev ntsuas tsis muaj kev ntsuas.

Yuav ua li cas rau nruab qhov siab voltage ct

Kev ceev faj kev nyab xeeb

Ua ntej cov txheej txheem teeb tsa, nws yog qhov tseem ceeb uas yuav tsum muaj kev nyab xeeb kom muaj kev nyab xeeb kom ntseeg tau tias koj tau nyob zoo. Nco ntsoov tias kaw lub zog hluav taws xob thiab hnav cov khoom tiv thaiv tus kheej tsim nyog (PPE), suav nrog hnab looj tes, hnab looj tes, hnab looj tes. Nws tseem yog qhov tsim nyog ua haujlwm nrog cov hluav taws xob tsim nyog los xyuas kom ua raws cov qauv hluav taws xob thiab cov cai.

Xaiv cov chaw nyob

Xaiv ib qho chaw tsim nyog rau cov hloov pauv tam sim no tseem ceeb heev. CT yuav tsum muab tso rau kom ze li sai tau rau cov khoom siv lossis tus thawj coj, uas yog kom raug saib xyuas lossis tiv thaiv. Xyuas kom meej tias qhov chaw nyob rau kev nkag tau yooj yim thiab txaus kho rau kev teeb tsa thiab kev saib xyuas yav tom ntej.

Mounting tus hloov pauv tam sim no

Thaum qhov chaw nyob zoo tshaj plaws tau txiav txim siab, ua raws li cov kauj ruam no kom nce tus hloov pauv tam sim no:
1.Txoj kev nce npoo tsev yog huv thiab dawb los ntawm cov khib nyiab lossis cov paug tsis huv.
2.Pau lub chaw hloov pauv tam sim no nyob rau ntawm mounting nto thiab khij qhov chaw rau drilling qhov.
3.Drill lub qhov ntawm cov chaw cim, ua kom lawv yog tus tsim nyog loj thiab qhov tob rau lub mounting kho vajtse.
3.Qhov kev hloov pauv tam sim no siv cov kev hloov pauv hloov pauv thiab kho vajtse. Ua kom nruj cov bolts lossis screws rau cov chaw tsim khoom pom zoo cov chaw pom zoo.

Xiav Cov Hloov Tam Sim No

Kev tsim nyog ntawm cov hloov hluav taws xob tam sim no yog qhov tseem ceeb kom ntseeg tau tias kev ntsuas yog qhov tseeb thiab kev tiv thaiv. Ua raws li cov lus qhia no:
1.Denify cov thawj thiab theem nrab ob sab ntawm cov hloov pauv tam sim no. Thawj sab yog txuas nrog tus neeg saib xyuas nqa cov kev soj ntsuam tam sim no, thaum sab ob yog txuas nrog cov khoom siv ntsuas lossis cov khoom tiv thaiv.
2.Cov txheej txheem rwb thaiv tsev los ntawm cov xaim uas tsim qauv ntawm cov thawj thiab ob sab, ua kom muaj kev txav sab laug.
3.Txoj kev ua haujlwm theem tseem ceeb rau tus neeg xyuas pib tam sim no. Siv cov xov hlau tsim nyog lossis clamps thiab ua kom muaj kev sib txuas nrog.
4. Godorect lub sab nraud ntawm cov xaim ntawm cov xaim sab hauv lossis cov cuab yeej tiv thaiv, ua raws li cov khw muag khoom thiab txhua tus lej hluav taws xob.
5.Double-kuaj xyuas txhua qhov sib txuas los xyuas kom lawv nruj thiab muaj insulated kom zoo.

Peb Lub Hoobkas

Youxing Electric Co., Ltd. muaj thaj chaw cog ntawm 5600 square metres. Muaj 51 cov kws tshaj lij nrog cov npe nruab nrab thiab 2 tus kws tshaj lij choj uas muab kev lees paub rau kev txhim kho cov khoom tshiab. Ntawm lub hauv paus ntawm xaiv cov ntaub ntawv tshiab, cov qauv tshiab thiab cov txheej txheem tshiab, kev lag luam tshiab tsim kho cov khoom lag luam tshiab nrog kev ua haujlwm zoo thiab kev ua haujlwm tau zoo. Tam sim no, cov khoom tseem ceeb ntawm kev tsim thiab tsim tawm muaj ntau dua 230 tus qauv thiab ntau tshaj 2000 specifications. Cov khoom yog dav siv nyob rau hauv cov chaw nres tsheb fais fab, cov nroj tsuag hluav taws xob, cov chaw ua haujlwm thiab lub zog. Lawv muag zoo hauv xeev, nroog thiab cheeb tsam autonous thoob plaws lub teb chaws, thiab tau siv hauv National Cov phiaj xwm tseem ceeb rau ntau lub sijhawm. Qee cov khoom xa tawm mus rau Russia, Africa, Southeast Asia thiab lwm lub tebchaws. Ib qho ntxiv, peb lub tuam txhab tuaj yeem tsim thiab tsim khoom lag luam hloov chaw nrog cov kev cai tshwj xeeb raws li cov neeg siv khoom tshwj xeeb

Daim ntawv muaj cai

Cov FAQ

Q: Koj kos li cas ct voltage?

A: Cov zis hluav taws xob ntawm ib qho hloov pauv tam sim no (CT) tuaj yeem kuaj nyob rau hauv daim teb uas siv cov digital motimeter nrog ib tug millivolt ac (mvac) ntau yam. Qhov kev ntsuas no yog pab tau kom paub meej tias CT ua haujlwm tau zoo thiab tias tam sim no yog ntws hauv tus neeg xyuas pib uas CT yog ntsia rau.

Q: Koj siv CT hluav taws xob li cas?

A: Feem ntau nws yog feem ntau siv nyob rau hauv hluav taws xob hluav taws xob, tiv thaiv kev xa tawm, thiab hauv lwm cov ntawv thov uas xav tau kev ntsuas ruaj khov ntawm hluav taws xob tam sim no. Lub xub ntiag ntawm lub transformer ntawm lub transformer tau txuas nrog cov qib siab, thaum lub tshuab winder sib txuas theem nrab txuas nrog kev ntsuas lossis cov khoom tiv thaiv.

Q: Dab tsi yog CT tam sim no thiab hluav taws xob?

A: Tam sim no hloov pauv thiab cov hloov pauv tau (tseem hu ua Voltage transformer) yog ob qho ntsuas ntsuas. Ib lub ct txo qis ntawm cov paib tam sim no rau kev ntsuas, thaum lub PT txo qis hluav taws xob qhov tseem ceeb rau hauv qis dua. Cov kev hloov pauv tau tsim los ntsuas seb lub tshuab hluav taws xob puas muaj tseeb thiab muaj kev nyab xeeb.

Q: Dab tsi yog qhov txawv ntawm VT thiab CT voj?

A: Lub ntsiab sib txawv ntawm ib qho hloov pauv tam sim no, kuj nquag hu ua "PT", yog tias lub tshuab hloov hluav taws xob uas muaj qhov sib npaug thiab muaj peev xwm muab tau kev nyab xeeb rau Ammeter.

Q: Vim li cas ct siv hloov chaw?

A: Cov hloov pauv tam sim no, siv nyob rau hauv cov chaw nres tsheb feem ntau pab ob lub hom phiaj: ntsuas lub hom phiaj: Qhov no hom CT siv rau ntsuas cov tam sim no. Qhov hloov pauv no tam sim no-down tam sim no raws nws cov feem (zoo li 1000-800-400 txog 1 amp.) Yog li ntawd txo cov peev xwm tam sim no tuaj yeem ntsuas hauv lub ntsuas.

Q: Yog ct ac lossis dc?

A: CT yog ib txwm siv los ntsuas AC Surents. Technically tab sis, CT yog rhiab rau DC thiab feem ntau cov tub ntxhais yuav ua kom tau sai thiab.

Q: Peb puas tuaj yeem siv CT rau DC tam sim no?

A: Koj tsis tuaj yeem ntsuas DC nrog CT. Koj tuaj yeem ntsuas kev ntsuas hluav taws xob los ntawm CT vim muaj kev hloov pauv hauv DC tam sim no, tab sis Sai li qhov hloov chaw nres, CT cov khoom tawm mus rau xoom. Yog li koj yuav paub qhov hloov pauv tam sim no, tab sis tsis yog nws tus nqi khov kho.

Q: Dab tsi yog hom sib txawv ntawm CT?

A: Muaj ob hom kev hloov pauv tam sim no: lub qhov txhab hom thiab toroidal hom. Lub qhov txhab hom muaj lub tsho cua daj cua dub wrapped ib ncig ntawm cov winder thib ob. Cov hom toroidal muaj qhov winding ua ntej uas qhwv ib ncig ntawm ib qho tseem ceeb ntawm cov khoom siv ferrite.

Q: Peb tuaj yeem tiv thaiv kev hloov pauv tam sim no?

A: Kev tiv thaiv luv luv ntawm Circuit Court: Muab cov kev tiv thaiv luv luv ntawm cov pej xeem luv luv ntawm thawj sab ntawm CT los tiv thaiv cov dej ntws dhau tam sim no. Rwb thaiv tsev: insulate cts kom zoo los tiv thaiv kev phom sij hluav taws xob. Siv cov ntaub ntawv rwb thaiv tsev thiab cov kab ke tsim nyog rau kev ua haujlwm ib puag ncig.

Q: Yuav kuaj li cas CT kev noj qab haus huv?

A: CT polarity yog soj ntsuam los ntawm kev ntsuam xyuas kev ruaj ntseg uas tsuas yog nqa tawm nrog kev txhaj tshuaj tiv thaiv kev txhaj tshuaj. Txoj kev txhaj tshuaj thib ob yog kev txhaj tshuaj thib ob yog ua los ntawm cov qauv hluav taws xob lossis kev tiv thaiv tam sim no, cov kev tiv thaiv thiab kev tiv thaiv kev tiv thaiv thiab lwm yam.

Cim npe nrov: High Voltage CT, Tuam Tshoj High Voltage CT Manufacturers, cov chaw muag khoom, Hoobkas