Qhov Zoo ntawm Gaopeng: Kev Tsim Kho Kom Zoo rau Kev Txhim Kho Hluav Taws Xob Tsis Muaj Kev Cuam Tshuam
Tshooj 1: Lub Tswv Yim Tom Qab Txhua Yam Khoom Gaopeng
Hauv plawv ntawm Gaopeng Electric txoj haujlwm yog ib qho kev ntseeg tseem ceeb:kev sib txuas tsuas yog ntseeg tau raws li kev tsim kho uas nkag mus rau hauv nws.Lub tswv yim no tsav txhua yam ntawm peb txoj kev lag luam, txij li kev xaiv cov khoom siv thiab cov txheej txheem tsim khoom mus rau kev tswj xyuas zoo thiab kev txhawb nqa cov neeg siv khoom.
Peb nkag siab tias peb cov terminals tsis yog tsuas yog cov khoom xwb—lawv yog cov qhov tseem ceeb uas lub zog hluav taws xob ntws, qhov twg cov teeb liab tswj hwm hla, thiab qhov twg qhov kev nyab xeeb ntawm lub kaw lus raug txiav txim siab thaum kawg. Ib qho kev sib txuas tsis zoo tuaj yeem ua rau tag nrho kev teeb tsa puas tsuaj, ua rau cov khoom siv tsis ua haujlwm, lub sijhawm tsim khoom tsis ua haujlwm, lossis txawm tias muaj xwm txheej kev nyab xeeb loj heev. Qhov kev nkag siab no ua rau peb nrhiav kev ua tau zoo hauv txhua yam khoom uas peb tsim tawm.
Tshooj 2: Cov Peev Xwm Tsim Khoom Zoo Tshaj Plaws
Cov Chaw Tsim Khoom Uas Muaj Kev Ntsuas Zoo
Peb lub chaw tsim khoom hauv Yueqing—lub plawv ntawm Tuam Tshoj txoj kev lag luam khoom siv hluav taws xob—muaj cov tshuab tsim khoom siab heev uas muaj peev xwm ua tau raws li cov lus qhia tshwj xeeb tshaj plaws:
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Kev Luam Ntawv Ceev Ceev:Peb cov tshuab stamping tsis siv neeg tsim cov lub cev kawg nrog qhov tseeb thiab qhov sib xws, kom ntseeg tau tias txhua lub davhlau ya nyob twg hauv kev khiav ntau lawm zoo ib yam li qhov kawg.
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Cov Kab Sib Dhos Tsis Siv Neeg:Rau Cov Chaw Nres Tsheb Uas Muaj Kev Ruaj Ntseg thiab cov kev sib dhos ua ke nyuaj, peb cov kab tsis siv neeg ua kom ntseeg tau tias muaj qhov chaw tso cov tes tsho rwb thaiv tsev thiab kev tsim cov thoob crimp kom raug.
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Cov Txheej Txheem Plating Siab Tshaj Plaws:Cov peev xwm plating hauv tsev tso cai rau peb tswj hwm qhov tuab ntawm tin, silver, thiab nickel, kom ntseeg tau tias qhov zoo tshaj plaws tiv taus corrosion thiab kev sib cuag.
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Kev Txhaj Tshuaj Molding:Kev txhaj tshuaj molding ntawm polyamide (PA66) thiab lwm yam yas engineering tsim cov tes tsho rwb thaiv tsev thiab Lub Rooj Sib Tham cov tsev nyob nrog cov chaw zoo nkauj thiab qhov ntev raug.
Kev Tswj Xyuas Zoo
Kev zoo ntawm Gaopeng tsis yog ib qho kev xav tom qab - nws tau tsim rau hauv txhua kauj ruam ntawm cov txheej txheem ntau lawm:
| Theem Zoo | Cov Haujlwm | Lub Hom Phiaj |
|---|---|---|
| Kev Tshuaj Xyuas Tuaj Txog | Kev txheeb xyuas cov ntawv pov thawj raw khoom; kev kuaj xyuas qhov ntev ntawm cov tooj liab, hlau, thiab cov yas granules | Xyuas kom meej tias cov ntaub ntawv ua tau raws li cov lus qhia ua ntej pib tsim khoom |
| Kev Saib Xyuas Hauv Cov Txheej Txheem | Cov tshuab pom kev tsis siv neeg xyuas qhov loj me tseem ceeb thaum lub sijhawm stamping; kev saib xyuas lub sijhawm tiag tiag ntawm cov plating tuab | Nrhiav thiab kho cov kev hloov pauv tam sim ntawd |
| Kev Tshuaj Xyuas Zaum Kawg | 100% kev tshuaj xyuas pom rau cov yam ntxwv tseem ceeb; kev kuaj rau kev rub-kev sim, kev txheeb xyuas qhov ntev, thiab kev ntsuas kev tiv thaiv kev sib cuag | Xyuas kom tseeb tias cov khoom tiav lawm ua tau raws li txhua yam kev cai |
| Kev Ntsuas Ua Ib Pawg | Kev kuaj xyuas cov qauv tsis tu ncua rau qhov kub nce, kev tiv thaiv xeb, thiab kev hloov pauv thermal | Txheeb xyuas qhov kev ua tau zoo mus sij hawm ntev |
Tshooj 3: Kev Ua Tau Zoo ntawm Kev Tshawb Fawb Txog Khoom Siv
Kev ua tau zoo ntawm txhua lub davhlau ya nyob twg pib nrog cov ntaub ntawv uas nws tau ua. Gaopeng txoj kev cog lus rau qhov zoo pib nrog cov lus qhia txog cov khoom siv nruj.
Cov Khoom Siv Conductor
| Khoom siv | Cov Lus Qhia Tshwj Xeeb | Daim Ntawv Thov |
|---|---|---|
| Tooj liab electrolytic | Qib T2 ib GB/T 5231; yam tsawg kawg nkaus 99.9% purity | Cov davhlau ya nyob twg txheem, qhov siab tshaj plaws conductivity |
| Tooj Liab Uas Muaj Kev Coj Ua Zoo | Ntau yam alloys rau cov ntawv thov tshwj xeeb | Cov khoom sib txuas uas xav tau cov khoom caij nplooj ntoos hlav |
| Cov Khoom Siv Aluminium | Cov hlau sib xyaw xaiv ib GB / T 26317 | Cov ntawv thov sib dua, kev sib txuas ntawm cov neeg hlau txhuas |
Cov Tshuab Plating
| Hom Plating | Qhov tuab | Cov Khoom Tseem Ceeb | Zoo Tshaj Plaws Rau |
|---|---|---|---|
| Ntseeg | 3-8 microns | Kev sib txuas zoo heev, kev tiv thaiv corrosion | Cov davhlau ya nyob twg dav dav, kev siv sab hauv tsev |
| Nyiaj | 2-5 microns | Kev ua tau zoo tshaj plaws, kev ruaj khov kub siab | Cov ntawv thov RF tam sim no siab, kub siab, |
| Nickel | 2-5 microns | Kev tiv thaiv kub thiab xeb zoo heev | Cov chaw kub thiab txias, kev siv hauv kev lag luam |
| Kub(xaiv cov khoom) | 0.5-2 microns | Kev tiv thaiv xeb zoo tshaj plaws, kev sib cuag ruaj khov | Lub hom phiaj tseem ceeb, qis-voltage, kev ntseeg siab siab |
Cov Khoom Siv Rwb Thaiv Tsev
| Khoom siv | Cov Khoom | UL Kev Ntsuas Kev Kub Hnyiab | Kub thiab txias |
|---|---|---|---|
| Polyamide (PA66) | Kev ua haujlwm zoo heev, yoog tau | UL94 V-2 lossis V-0 | -40°C txog +105°C |
| PVC | Cov khoom zoo dav dav, ruaj khov dua | UL94 V-0 | -20°C txog +80°C |
| Polycarbonate (PC) | Lub zog cuam tshuam siab, cov kev xaiv pob tshab | UL94 V-0 | -40°C txog +120°C |
| Cov khoom siv av nplaum | Kev tiv taus kub heev | Tsis kub hnyiab | -200°C txog +600°C+ |
Tshooj 4: Kev Tsim Khoom Siv Tag Nrho
Tsim los rau Kev Ua Haujlwm Tiag Tiag
Cov khoom Gaopeng tsis yog tsim los ua kom tau raws li cov lus qhia hauv chav kuaj xwb, tab sis ua kom ntseeg tau hauv qab cov xwm txheej tiag tiag:
Kev co tsis kam:Peb cov qhov txuas ntawm lub caij nplooj ntoos hlav raug kuaj xyuas ntau yam kom ntseeg tau tias lawv tswj tau lub zog sib cuag thaum muaj kev co tas li uas pom muaj nyob rau hauv cov tshuab ua haujlwm hauv kev lag luam, kev siv tsheb ciav hlau, thiab cov chaw tsim tsheb.
Kev Caij Tsheb Kauj Vab Kub:Txhua qhov kev tsim qauv davhlau ya nyob twg tau lees paub los ntawm kev sim cua sov uas ua qauv ntau xyoo ntawm kev nthuav dav thiab kev sib cog lus, kom ntseeg tau tias kev sib txuas tseem nruj thiab ruaj khov.
Kev Tiv Thaiv Kev Xeb:Peb cov txheej txheem plating tau zoo tshaj plaws los muab kev npog sib npaug uas tiv taus cov ntsev tsuag, av noo, thiab huab cua kev lag luam.
Muaj Peev Xwm Nqa Tau Tam Sim No:Cov davhlau ya nyob twg tau tsim los nrog qhov hnyav thiab thaj chaw sib cuag txaus kom nqa cov hluav taws xob ntsuas tas li yam tsis muaj qhov kub nce siab dhau, txawm tias nyob hauv qhov chaw nqaim.
Kev Txhim Kho Tshwj Xeeb rau Daim Ntawv Thov
Peb paub tias cov ntawv thov sib txawv muaj qhov xav tau sib txawv. Peb pab neeg ua haujlwm engineering ua haujlwm tas li los txhim kho cov khoom rau cov xwm txheej siv tshwj xeeb:
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Cov Chaw Tswj Vaj Huam Sib Luag:Cov qauv tsim me me nrog cov kev xaiv cim yooj yim thiab cov ntsiab lus xeem sib xyaw ua ke
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Kev Faib Fais Fab:Cov kev tsim kho hnyav nrog thaj chaw sib cuag dav dav thiab lub zog clamping siab
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Lub Zog Rov Ua Dua Tshiab:Cov ntaub ntawv tiv taus UV, kev tiv thaiv xeb zoo dua, 1,500V DC qib
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Kev Thauj Mus Los:Cov thev naus laus zis tiv taus kev co, cov cim me me, ntau qhov kub thiab txias
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Cov Cheeb Tsam Muaj Kev Phom Sij:Cov qauv tsim tshwj xeeb ua tau raws li qhov yuav tsum tau ua kom muaj kev nyab xeeb ntxiv (Ex e)
Tshooj 5: Kev Txhawb Nqa Kev Txawj Ntse thiab Kev Koom Tes Ua Haujlwm Engineering
Ntawm Gaopeng, peb ntseeg tias peb txoj kev sib raug zoo nrog cov neeg siv khoom txuas ntxiv mus deb tshaj qhov kev lag luam. Peb saib peb tus kheej uacov neeg koom tes ua haujlwm engineering, cog lus tias yuav pab peb cov neeg siv khoom ua tiav.
Kev Txhawb Nqa Engineering Daim Ntawv Thov
Peb pab neeg ua haujlwm txawj ntse muaj los pab nrog:
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Kev Xaiv Khoom:Txheeb xyuas qhov chaw nres nkoj zoo tshaj plaws lossis thaiv davhlau ya nyob twg rau cov ntawv thov tshwj xeeb raws li kev xav tau hluav taws xob, tshuab, thiab ib puag ncig
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Cov Lus Qhia Txog Kev Crimping:Muab kev taw qhia txog kev tsim nyog Cov Cuab Yeej Crimping, qhov chaw teeb tsa, thiab cov txheej txheem rau cov txiaj ntsig zoo tshaj plaws
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Kev Txheeb Xyuas Kev Sib Haum Xeeb:Xyuas kom meej tias cov khoom los ntawm peb cov khoom ua haujlwm zoo nrog cov kab ke thiab cov khoom uas twb muaj lawm
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Kev Tsim Qauv Tshwj Xeeb:Tsim cov khoom hloov kho lossis cov khoom tshiab kiag li rau cov kev xav tau tshwj xeeb
Cov Ntaub Ntawv Txog Kev Siv Tshuab
Peb muab cov ntaub ntawv pov thawj txog kev siv tshuab rau txhua yam khoom, suav nrog:
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Cov ntaub ntawv qhia txog cov ntaub ntawv nrog rau qhov ntev, kev ntsuas, thiab cov yam ntxwv ntawm kev ua tau zoo
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Cov qauv 3D (cov ntaub ntawv STEP) rau kev koom ua ke CAD
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Cov lus qhia txog kev siv crimping thiab cov lus qhia txog cov cuab yeej
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Cov ntaub ntawv pov thawj thiab cov ntawv qhia kev xeem
Kev Kawm thiab Kev Kawm
Peb ntseeg tias cov neeg siv khoom uas paub txog kev lag luam yog cov neeg siv khoom uas ua tau zoo. Peb pab neeg muab kev pabcuam:
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Cov kev nthuav qhia txog kev siv tshuab sib txuas thiab cov kev coj ua zoo tshaj plaws
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Kev cob qhia hauv tsev kawm ntawv lossis kev cob qhia hauv online rau cov pab pawg engineering thiab cov pab pawg tsim khoom
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Cov ntawv sau thov thiab cov ntawv dawb ntawm cov ncauj lus tshwj xeeb
Tshooj 6: Kev Ntseeg Tau ntawm Cov Khoom Siv
Hauv kev lag luam thoob ntiaj teb niaj hnub no, kev cuam tshuam ntawm cov khoom xa tuaj yeem muaj kev puas tsuaj loj heev rau cov sijhawm tsim khoom thiab cov sijhawm ua haujlwm. Gaopeng cog lus tias yuav ua tus khub koom tes txhim khu kev qha uas koj tuaj yeem suav rau.
Kev Tswj Xyuas Cov Khoom Muag Khoom Muaj Zog
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Cov Khoom Siv Raw:Peb khaws cov khoom muag tseem ceeb ntawm cov tooj liab, cov khoom siv plating, thiab cov yas sib xyaw kom tiv thaiv kev hloov pauv ntawm cov khoom xa tuaj.
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Cov khoom tiav lawm:Cov khoom lag luam nrov tau muab khaws cia kom tob kom teb tau sai rau cov neeg siv khoom xaj.
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Kev Kwv Yees Txog Kev Xav Tau:Peb cov txheej txheem npaj muag khoom thiab kev ua haujlwm siv cov ntaub ntawv keeb kwm thiab kev txawj ntse ntawm kev ua lag luam los kwv yees cov kev xav tau ntawm cov neeg siv khoom.
Kev Thauj Khoom Zoo
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Cov Neeg Koom Tes Thoob Ntiaj Teb rau Kev Xa Khoom:Peb ua haujlwm nrog cov neeg muab kev pabcuam logistics uas muaj kev paub dhau los los muab cov kev xaiv xa khoom sib tw mus rau cov chaw thoob ntiaj teb.
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Kev Tshawb Xyuas Kev Txiav Txim:Cov neeg siv khoom tau txais cov xov xwm tshiab tam sim ntawd txog qhov xwm txheej ntawm kev txiav txim thiab kev nce qib ntawm kev xa khoom.
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Cov Ntaub Ntawv Txog Kev Lis Kev Cai:Peb muab tag nrho cov ntaub ntawv tsim nyog los pab txhawb kev tshem tawm kev lis kev cai kom yooj yim.
Kev Yooj Yim Tsim Khoom
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Peev Xwm Loj Hlob Tau:Peb lub chaw tuaj yeem ua kom sai sai rau kev tsim khoom kom tau raws li qhov xav tau ntxiv.
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Kev Hloov Pauv Sai:Cov txheej txheem tsim khoom zoo txo cov sijhawm ua khoom rau ob qho tib si cov khoom txheem thiab cov khoom lag luam tshwj xeeb.
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Kev Pab Thaum Muaj Xwm Ceev:Yog xav tau kev pab sai, peb yuav muab kev pab sai thiab xa khoom sai tshaj rau koj.
Tshooj 7: Kev Cog Lus Rau Kev Ruaj Ntseg
Ua ib lub chaw tsim khoom uas muaj lub luag haujlwm, Gaopeng tau cog lus tias yuav txo peb cov kev cuam tshuam rau ib puag ncig thiab txhawb nqa peb cov neeg siv khoom lub hom phiaj kev ruaj khov.
Kev Ruaj Ntseg ntawm Khoom
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Cov Kev Xaiv Uas Tsis Muaj Halogen:Peb cov khoom muaj ntau yam khoom siv rwb thaiv tsev uas tsis muaj halogen rau cov ntawv thov uas muaj kev txhawj xeeb txog kev tso pa luam yeeb thiab kev lom.
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Kev Ua Raws Cai ntawm RoHS thiab REACH:Txhua yam khoom ua tau raws li cov kev txwv ntawm European rau cov tshuaj phom sij.
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Kev Pab Cuam Ntev:Peb cov khoom tau tsim los rau ntau xyoo ntawm kev pabcuam txhim khu kev qha, txo qhov zaus hloov pauv thiab pov tseg.
Kev Tsim Khoom Siv Tau Ntev
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Kev Siv Hluav Taws Xob Zoo:Kev nqis peev tas mus li rau cov khoom siv thiab cov txheej txheem tsim khoom siv hluav taws xob zoo.
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Kev Txo Cov Khib Nyhiab:Cov kev pab cuam rov ua dua tshiab rau cov hlau seem thiab yas; kev txhim kho tas mus li hauv kev siv cov khoom siv.
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Kev Tswj Xyuas Pa Tawm:Kev kho kom zoo ntawm cov pa phem ntawm cov txheej txheem, suav nrog kev ua haujlwm plating.
Tshooj 8: Cov Dab Neeg Txog Kev Ua Tau Zoo ntawm Cov Neeg Siv Khoom
Txawm hais tias peb hwm qhov kev ceev ntiag tug ntawm peb cov neeg siv khoom, peb txaus siab rau kev koom tes uas peb tau tsim thoob plaws hauv kev lag luam:
Tus Thawj Coj Hauv Tebchaws Europe ntawm Kev Siv Tshuab Hauv Kev Lag Luam:Ib lub tuam txhab loj hauv German automation tau xaiv Gaopeng lub caij nplooj ntoos hlav-cage terminal blocks rau lawv cov vaj huam sib luag tswj hwm tiam tom ntej tom qab kev sim ntau yam tau lees paub tias peb cov khoom tau ua raws li lawv cov kev cai nruj rau kev tiv thaiv kev co thiab kev ntseeg siab mus sij hawm ntev.
Tus Tsim Kho Lub Hnub Ci Hauv Tebchaws Asmeskas Sab Qaum Teb:Rau ib qhov project loj loj rau lub hnub ci hauv sab qab teb sab hnub poob ntawm Tebchaws Meskas, peb tau muab ntau txhiab lub terminal blocks thiab cov lugs tooj liab, txhua yam tau ntawv pov thawj raws li cov qauv UL thiab muaj peev xwm tiv taus qhov kub thiab txias heev hauv hav zoov.
Kev Sib Txuas Lus EV Charging Network hauv Sab Qab Teb Es Xias:Thaum kev siv tsheb fais fab nrawm dua thoob plaws sab hnub tuaj Asia, ib lub tuam txhab muab kev pabcuam hauv paus tseem ceeb tau xaiv Gaopeng terminals rau lawv cov chaw them hluav taws xob, vim peb muaj tus nqi sib tw, kev xa khoom txhim khu kev qha, thiab pob ntawv pov thawj tiav.
Tuam Txhab Tshuab Tuam Txhab Suav:Ib lub tuam txhab tsim khoom siv CNC hauv tsev uas tau teeb tsa tus qauv rau Gaopeng cov davhlau ya nyob twg rau tag nrho lawv cov vaj huam sib luag tswj hwm tom qab peb pab neeg engineering tau ua haujlwm nrog lawv kom zoo dua qhov kev xaiv davhlau ya nyob twg rau lawv qhov kev co thiab qhov chaw txwv.
Tshooj 9: Saib Mus Tom Ntej - Kev Tsim Kho Tshiab rau Cov Teeb Meem Tag Kis
Kev lag luam hluav taws xob txuas ntxiv mus zuj zus ntawm qhov nrawm nrawm. Gaopeng cog lus tias yuav nyob twj ywm ntawm pem hauv ntej ntawm kev siv tshuab sib txuas kom tau raws li cov teeb meem tshiab.
Cov Cheeb Tsam Tseem Ceeb rau Kev Txhim Kho
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Lub zog ceev dua:Thaum cov khoom siv me dua, cov terminals yuav tsum tswj tau cov dej ntws uas nce ntxiv hauv qhov chaw me dua. Peb tab tom tsim cov qauv tshiab uas ua rau muaj peev xwm tam sim no ntau tshaj plaws thaum txo qhov chaw xav tau.
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Kev Sib Txuas Zoo Dua Rau Kev Lag Luam 4.0:Cov chaw nres tsheb ntse uas muaj kev sib txuas lus thiab kev sib txuas lus ua ke yuav ua rau muaj kev saib xyuas ua ntej thiab sau cov ntaub ntawv tsis siv neeg. Peb tab tom tshawb nrhiav cov thev naus laus zis uas coj kev txawj ntse mus rau qhov chaw sib txuas.
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Cov Khoom Siv Ruaj Khov:Peb tab tom nthuav peb txoj kev siv cov khoom siv rov ua dua tshiab, cov yas uas ua los ntawm cov khoom siv bio, thiab lwm yam kev xaiv uas ruaj khov yam tsis muaj kev cuam tshuam rau kev ua haujlwm.
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Muaj Peev Xwm Ua Haujlwm Ib puag ncig hnyav heev:Rau cov ntawv thov hauv aerospace, deep-sea, thiab lwm yam chaw nyuaj, peb tab tom tsim cov terminals uas muaj peev xwm tiv taus qhov kub thiab txias, kev nyuaj siab, thiab cov xwm txheej corrosive.
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Cov Qauv Tsim Uas Siv Tau Nrog Kev Siv Tshuab:Thaum kev sib dhos vaj huam sib luag tau dhau los ua qhov tsis siv neeg ntau zuj zus, peb tab tom tsim cov davhlau ya nyob twg uas tau tsim kom zoo rau kev siv neeg hlau thiab kev ntxig hlau tsis siv neeg.
Xaus Lus: Qhov Txawv ntawm Gaopeng
Hauv lub ntiaj teb uas cov txheej txheem hluav taws xob nyuaj zuj zus, tseem ceeb dua, thiab xav tau ntau dua, kev xaiv cov khoom sib txuas yeej tsis tau tseem ceeb dua li no. Ntawm Yueqing Gaopeng Electric Co., Ltd., peb muab ntau tshaj li cov khoom lag luam xwb - peb muab:
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Kev Ua Zoo Tshaj Plaws hauv Engineering:Cov khoom tsim los nrog kev nkag siab tob txog cov kev xav tau tiag tiag
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Qhov Zoo Tshaj Plaws:Cov txheej txheem zoo uas ua kom txhua lub davhlau ya nyob twg ua tau raws li cov lus qhia
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Daim Ntawv Pov Thawj Thoob Ntiaj Teb:Cov khoom koj siv tau nrog kev ntseeg siab nyob txhua qhov chaw hauv ntiaj teb
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Kev Koom Tes Ua Haujlwm:Kev txhawb nqa uas nthuav dav los ntawm kev xaiv cov khoom mus txog rau kev ua tiav ntawm daim ntawv thov
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Kev Ntseeg Tau ntawm Cov Khoom Siv:Ib tug khub uas koj tuaj yeem cia siab rau, kev txiav txim tom qab kev txiav txim
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Kev Ua Haujlwm Ruaj Khov:Kev cog lus rau lub luag haujlwm ib puag ncig
Txawm koj tab tom tsim lub vaj huam sib luag tswj hwm rau lub Hoobkas, teev cov khoom rau lub hnub ci ua liaj ua teb, tsim EV them cov khoom siv, lossis tswj cov khoom siv tseem ceeb hauv kev lag luam, Gaopeng nyob ntawm no los xyuas kom meej tias koj cov kev sib txuas yog txhim khu kev qha, muaj kev nyab xeeb, thiab ua kom kav ntev.
Paub txog qhov zoo ntawm Gaopeng. Tsim nrog kev ntseeg siab. Txuas nrog kev ntseeg siab.
Tiv tauj peb hnub no los tham txog koj cov kev xav tau kev sib txuas, thov cov qauv, lossis teem sijhawm rau kev nthuav qhia txog kev siv tshuab. Peb pab neeg npaj txhij los koom tes nrog koj ntawm koj qhov project tom ntej.
Yueqing Gaopeng Electric Co., Ltd.
Kev daws teeb meem kev sib txuas lus meej rau lub ntiaj teb txuas nrog















