Laser vuam kev ua tau zoo thiab kev siv rau cov khoom sib txawv

Laser vuam yog dav siv nyob rau hauv hlau fabrication vim hais tias nws muaj siab vuam ceev, concentrated tshav kub input, meej weld tswj, thiab lub peev xwm los tsim kom huv si, txaus nyiam weld seams. Nws yog siv rau hauv kev lag luam xws li kev tsim tsheb, kev tsim cov ntawv hlau, khoom siv hluav taws xob, khoom siv hauv tsev, khoom siv kho vajtse, thiab kev siv hluav taws xob tshiab.

Txawm li cas los xij, cov txiaj ntsig laser vuam sib txawv heev nyob ntawm cov khoom siv welded . Stainless hlau, carbon steel, galvanized steel, aluminium alloys, thiab tooj liab muaj cov khoom sib txawv ntawm lub cev, kev xav, thermal conductivity, thiab cov yam ntxwv saum npoo. Cov kev sib txawv no cuam tshuam rau vuam stability, nkag mus, weld tsos, deformation, thiab cov txheej txheem yuav tsum tau.

Xaiv lub tshuab laser vuam raws li nws qhov ntsuas lub zog tsuas yog tsis txaus. Cov neeg tsim khoom yuav tsum xav txog cov khoom siv, thickness, sib koom tsim, weld zoo li yuav tsum tau, ntim ntau lawm, thiab cov ntaub ntawv siv tiag tiag.

Kab lus no sib piv cov yam ntxwv, kev sib tw, thiab kev siv laser vuam rau cov hlau sib txawv thiab piav qhia yuav ua li cas xaiv cov khoom siv laser vuam tsim nyog.

1. Laser vuam kev ua tau zoo sib piv rau cov khoom sib txawv

Cov hlau sib txawv teb txawv rau laser zog. Kev nkag siab txog qhov sib txawv no pab cov tuam txhab ntsuas cov txheej txheem ua tau thiab xaiv cov cuab yeej tsim nyog.

Lub rooj muab kev qhia dav dav. Qhov tshwm sim tiag tiag nyob ntawm qhov tshwj xeeb alloy, cov khoom tuab, qhov chaw nyob, kev sib koom ua ke, laser qhov chaw, vuam lub taub hau, thiab cov txheej txheem tsis. Cov qauv kuaj pom zoo ua ntej xaiv cov khoom siv lossis ntau lawm.

2. Stainless hlau Laser Vuam

Stainless hlau yog ib qho khoom siv hauv kev siv laser vuam. Nrog rau cov txheej txheem tsim nyog, laser vuam tuaj yeem tsim nqaim weld seams, concentrated heat input, thiab ua kom tiav zoo nkauj. Nws yog tshwj xeeb tshaj yog haum rau cov khoom uas xav tau ob qho tib si kev ncaj ncees thiab zoo tsos.

Cov ntawv thov siv

Stainless hlau laser vuam yog dav siv nyob rau hauv:

• Stainless hlau txee thiab enclosures

• Cov khoom siv hauv chav ua noj thiab khoom noj khoom haus ua lag luam

• Industrial sheet hlau Cheebtsam

• Cov khoom siv kho mob

• Hardware khoom thiab precision hlau qhov chaw

• Stainless hlau thav duab thiab fabricated lug

Kev txiav txim siab tseem ceeb ntawm vuam

Txawm hais tias stainless hlau feem ntau haum rau laser vuam, qhov kawg tshwm sim tseem nyob ntawm cov khoom tuab, kev sib koom ua ke, kev huv huv, thiab cov khoom siv vuam.

Rau cov ntawv nyias stainless hlau, cov khoom siv hluav taws xob ntau dhau tuaj yeem ua rau kub hnyiab los yog cuam tshuam. Rau pom weld seams, discoloration thiab nto tiav kuj yog ib qho kev txhawj xeeb tseem ceeb.

Yuav kom ua tiav cov txiaj ntsig zoo ib yam, cov neeg tsim khoom yuav tsum tau them sai sai rau:

1. Vuam tsis: Kho lub zog laser, vuam ceev, thiab lwm yam kev teeb tsa raws li cov khoom tuab thiab kev sib koom ua ke.

2. Kev npaj sib koom ua ke: Khaws qhov sib koom ua ke thiab ua kom haum raws li cov txheej txheem yuav tsum tau ua.

3. Deg mob: Tshem tawm cov roj, av, thiab lwm yam kab mob uas yuav cuam tshuam rau vuam stability.

4. Weld tsos: Ntsuam xyuas pem hauv ntej thiab, qhov twg muaj feem xyuam, rov qab sab ntawm weld.

5. Kev tsim khoom sib xws: Paub meej tias cov txheej txheem tseem nyob ruaj khov hla rov qab welds thiab cov khoom tsim tawm.

Rau cov khoom lag luam stainless hlau nrog cov kev xav tau zoo, cov qauv ntsuas tuaj yeem pab txiav txim siab seb lub tshuab laser welding, tsis siv neeg hlau-pub laser vuam tshuab, lossis lub platform laser vuam tshuab yog qhov kev xaiv zoo tshaj plaws.

3. Carbon Steel Laser Vuam

Cov pa roj carbon steel yog siv dav hauv kev tsim khoom vim tias nws muaj, cov khoom siv kho tshuab, thiab kev siv ntau yam. Laser vuam tuaj yeem muab kev vuam zoo thiab cov khoom siv hluav taws xob ntau, ua rau nws tsim nyog rau ntau cov pa roj carbon steel.

Cov ntawv thov siv

Cov ntawv thov ib txwm muaj xws li:

• Muaj cov khoom siv thav duab

• Hlau txee thiab enclosures

• Machinery Cheebtsam

• Automotive qhov chaw

• Sheet hlau qauv

• General hlau fabrication khoom

Kev txiav txim siab tseem ceeb ntawm vuam

Cov pa roj carbon steel feem ntau tuaj yeem ua laser welded zoo thaum cov txheej txheem sib txuam rau cov khoom siv thiab kev sib koom ua ke. Txawm li cas los xij, kev siv zog ntau dhau tuaj yeem ua rau kub hnyiab ntawm cov ntawv nyias, thaum qhov chaw tsis zoo lossis kev npaj tsis zoo tuaj yeem ua rau tawg, tawg, lossis tsis sib xws.

Cov ntsiab lus tseem ceeb suav nrog:

• Cov ntaub ntawv tuab: Cov nplooj nyias nyias yuav tsum tau ceev faj tswj cov khoom siv hluav taws xob, thaum cov ntaub ntawv tuab yuav xav tau cov txheej txheem sib txawv lossis kev sib koom ua ke.

• Vuam ceev: Vuam ceev cuam tshuam rau kev nkag mus, weld tsim, thiab tsim tau.

• Kev sib koom ua ke: qhov sib txawv loj lossis tsis sib xws tuaj yeem ua rau nws nyuaj rau kev ua tiav cov vuam ruaj khov.

• Deg mob: Roj, xeb, nplai, thiab lwm yam kab mob tuaj yeem cuam tshuam qhov zoo ntawm vuam.

• Mechanical Requirements: Welds yuav tsum raug soj ntsuam raws li qhov yuav tsum tau muaj lub zog thiab kev pabcuam.

Rau high-volume ntau lawm, cov txheej txheem yuav tsum tau soj ntsuam tsis tau tsuas yog rau ib tug neeg weld zoo tab sis kuj rau repeatability, lub sij hawm voj voog, thiab compatibility nrog fixtures los yog automation.

4. Galvanized Steel Laser Vuam

Galvanized steel feem ntau yog siv hauv cov khoom siv hluav taws xob, HVAC cov khoom, cov khoom siv tsheb, thiab lwm yam khoom siv hlau. Nws cov zinc txheej muab kev tiv thaiv corrosion, tab sis nws kuj qhia txog kev sib tw ntxiv thaum lub vuam.

Thaum lub txheej yog rhuab, zinc tuaj yeem vaporize thiab cuam tshuam nrog kev tsim cov vuam. Yog tias cov txheej txheem tsis raug tswj xyuas kom zoo, qhov tsis xws li porosity, spatter, thiab tsis ruaj khov weld seams yuav tshwm sim. Cov txheej nyob ze ntawm qhov vuam kuj tseem tuaj yeem puas.

Cov ntawv thov siv

• Cov khoom siv hluav taws xob thiab cov khoom xa tawm

• HVAC vaj tse thiab cov khoom

• Automotive sheet hlau qhov chaw

• Hlau brackets thiab kev txhawb nqa

• Industrial sheet hlau khoom

Kev txiav txim siab tseem ceeb ntawm vuam

Qhov kev sib tw tseem ceeb yog ntsuas qhov zoo ntawm vuam nrog cov yam ntxwv ntawm zinc txheej.

Manufacturers yuav tsum xav txog cov hauv qab no:

1. Txheej txheej: Cov txheej tuab thiab cov txheej txheem tuaj yeem cuam tshuam rau kev coj tus cwj pwm.

2. Kev sib koom ua ke thiab kev sib haum xeeb: Kev npaj sib koom ua ke tsim nyog tuaj yeem pab txhim kho cov txheej txheem kev ruaj ntseg.

3. Parameter optimization: Laser lub zog, vuam ceev, thiab lwm yam txheej txheem kev teeb tsa yuav tsum tau sim tawm tsam cov khoom siv tiag tiag thiab cov qauv sib koom ua ke.

4. Weld soj ntsuam: Tshawb xyuas qhov porosity, spatter, tsis tiav fusion, thiab lwm yam tsis xws luag raws li cov khoom yuav tsum tau ua.

5. Kev tiv thaiv corrosion: Ntsuas seb qhov chaw welded yuav tsum tau kho qhov chaw ntxiv lossis tiv thaiv corrosion tom qab vuam.

Kev nyab xeeb ntawm chaw ua haujlwm kuj tseem ceeb. Cov cua kub galvanized steel tuaj yeem tsim cov pa uas muaj zinc. Tsim nyog qhov chaw tso pa tawm hauv zos thiab kev tswj hwm kev ua haujlwm raug tsim nyog yuav tsum tau ua raws li cov khoom siv, txheej txheem, thiab kev ntsuas kev pheej hmoo ntawm chaw ua haujlwm.

Rau cov khoom siv hlau galvanized, kev sim nrog cov khoom siv coated tiag tiag yog qhov tseem ceeb tshwj xeeb. Kev vam meej weld ntawm cov hlau tsis muaj coated tsis tas txhais tau tias tib qhov chaw yuav ua haujlwm zoo ntawm cov hlau galvanized.

5. Aluminium Alloy Laser Vuam

Aluminium alloys yog dav siv nyob rau hauv lub teeb yuag, kev tiv thaiv corrosion, thiab kev ua tau zoo ntawm cov qauv tseem ceeb. Lawv muaj nyob rau hauv cov khoom siv hluav taws xob tshiab, cov khoom siv thauj mus los, cov ntaub ntawv txhuas, thiab ntau yam khoom lag luam.

Txawm li cas los xij, aluminium alloy laser vuam yuav tsum tau ua tib zoo tsim cov txheej txheem vim tias txhuas muaj kev cuam tshuam laser zog txawv ntawm ntau cov hlau thiab ua kom muaj cua sov zoo.

Cov ntawv thov siv

• Roj teeb enclosures thiab cov khoom siv zog tshiab

• Aluminium thav duab thiab cov khoom siv

• Cov khoom siv thauj mus los

• Industrial aluminium vaj tse

• Aluminium ntawv hlau cov khoom

• Cheebtsam uas yuav tsum tau siv lub teeb yuag

Kev txiav txim siab tseem ceeb ntawm vuam

Aluminium alloy laser vuam tuaj yeem cuam tshuam los ntawm alloy muaj pes tsawg leeg, cov khoom thickness, nto oxidation, sib koom ua ke, thiab cov txheej txheem tsis.

Cov kev sib tw uas muaj xws li:

• High reflectivity: Kev coj cwj pwm ntawm lub zog sib txawv ntawm ntau cov ntaub ntawv hlau.

• High thermal conductivity: Thaum tshav kub kub kis tau sai heev los ntawm cov khoom siv, cuam tshuam rau kev tsim vuam.

• Porosity: Hydrogen thiab qhov chaw paug tuaj yeem ua rau muaj qhov pore.

• Kev pheej hmoo tawg: Qee cov aluminium alloys thiab kev sib koom ua ke tej zaum yuav raug kub tawg.

• Deformation: Cov ntawv nyias nyias tuaj yeem cuam tshuam yog tias cov khoom siv hluav taws xob thiab cov khoom siv tsis raug tswj tau zoo.

Txhawm rau txhim kho cov txiaj ntsig vuam, cov tuam txhab tsim khoom yuav tsum txheeb xyuas qhov tseeb alloy thiab tuab, tswj cov txheej txheem zoo ib yam, ua kom cov txheej txheem tsis zoo, thiab ntsuas qhov ua tiav vuam tiv thaiv daim ntawv thov kev siv tshuab thiab cov tsos.

Rau cov khoom siv txhuas siv hauv cov ntawv thov, cov qauv vuam thiab kev soj ntsuam zoo tsim nyog yog qhov tseem ceeb tshwj xeeb ua ntej tsiv mus rau ntau lawm.

6. Tooj thiab tooj liab Alloy Laser Vuam

Copper thiab tooj liab alloys yog siv rau hauv kev tsim hluav taws xob thiab hluav taws xob vim lawv cov hluav taws xob thiab thermal conductivity. Lawv muaj nyob rau hauv conductive connectors, terminals, khoom siv fais fab, thiab lwm yam khoom uas yuav tsum tau txhim khu kev qha hluav taws xob sib txuas.

Txawm li cas los xij, tooj liab nthuav tawm cov teeb meem tshwj xeeb rau laser vuam. Nws cov kev xav tau siab thiab cov thermal conductivity tuaj yeem ua rau lub zog sib txuas thiab kev tswj xyuas kub xav tau ntau dua li lwm cov hlau.

Cov ntawv thov siv

• Hluav taws xob connectors thiab terminals

• Cov khoom siv hluav taws xob

• Electronic hlau qhov chaw

• Cov khoom siv fais fab

• Copper Cheebtsam siv nyob rau hauv cov kev siv zog tshiab

Kev txiav txim siab tseem ceeb ntawm vuam

Qhov tsim nyog ntawm laser vuam rau tooj liab nyob ntawm qib tooj liab, thickness, sib koom ua ke, laser qhov, thiab yuav tsum tau weld kev ua tau zoo.

Cov yam tseem ceeb muaj xws li:

1. Kev nqus hluav taws xob: tooj liab qhov kev xav tau tuaj yeem ua rau lub zog ruaj khov rau kev sib tw ntau dua.

2. Thaum tshav kub kub dissipation: High thermal conductivity cuam tshuam rau kev faib cov cua sov ncig lub vuam.

3. Kev sib koom ua ke: Kev tsim thiab sib haum ntawm cov khoom cuam tshuam rau kev tsim thiab rov ua dua.

4. Kev ruaj ntseg txheej txheem: Parameters yuav tsum tau validated ntawm cov khoom siv tooj liab.

5. Cov kev xav tau zoo: hluav taws xob tsis kam, lub zog siv hluav taws xob, qhov zoo li vuam, thiab lwm yam kev thov tshwj xeeb yuav tsum tau soj ntsuam.

Vim tias tooj liab vuam tuaj yeem nkag siab rau cov khoom siv thiab cov txheej txheem, cov neeg tsim khoom yuav tsum tsis txhob cia siab rau qhov tsis tsim los rau stainless hlau lossis carbon hlau. Kev sim ua tau zoo yog qhov tsim nyog los txiav txim siab seb qhov kev xaiv laser vuam tshuab tuaj yeem ua tau raws li qhov yuav tsum tau ua thiab cov hom phiaj zoo.

7. Yuav ua li cas xaiv txoj cai Laser Vuam Tshuab rau cov khoom sib txawv

Tom qab txheeb xyuas cov khoom siv thiab nws cov yam ntxwv vuam, cov kauj ruam tom ntej yog xaiv cov khoom siv uas haum rau cov qauv ua haujlwm, kev tsim khoom, thiab cov kev xav tau zoo.

Cov tshuab laser sib txawv yog tsim los rau kev siv sib txawv. Qhov kev xaiv zoo tshaj plaws nyob ntawm ntau dua li lub zog laser ib leeg.

7.1 Handheld Laser Vuam Tshuab

Handheld laser welding tshuab yog tsim rau ntau qhov kev siv vuam hloov tau yooj yim, tshwj xeeb tshaj yog thaum cov khoom sib txawv hauv cov duab lossis vuam txoj haujlwm hloov nquag.

Cov ntaub ntawv muaj peev xwm muaj xws li stainless hlau fabrication, carbon steel Cheebtsam, khoom enclosures, hlau thav duab, thiab cov ntawv hlau ua haujlwm.

Thaum xaiv lub kaw lus tuav, ntsuas nws qhov kev sib raug zoo nrog cov khoom siv lub hom phiaj thiab cov tuab, cov neeg siv yuav tsum tau ua, vuam txoj haujlwm, lub voj voog ua haujlwm, thiab kev npaj kev nyab xeeb ntawm chaw ua haujlwm.

7.2 Tsis Siv Neeg Hlau-Pib Laser Vuam Tshuab

Tsis siv neeg hlau-pub laser vuam tshuab ntxiv muab tub lim rau cov txheej txheem vuam. Tej zaum lawv yuav muaj txiaj ntsig zoo thaum sib koom ua ke, weld geometry, lossis weld tsim yuav tsum ua kom cov khoom siv tau zoo.

Lawv tuaj yeem raug txiav txim siab rau cov hlau tsis zoo, carbon hlau, thiab lwm yam hlau siv tau. Txawm li cas los xij, qhov kev xaiv ntawm cov xaim xaim thiab cov vuam tsis sib xws yuav tsum phim cov khoom siv hauv paus thiab cov khoom siv vuam uas xav tau.

Hlau pub tsis tuaj yeem daws txhua qhov sib koom ua ke los yog vuam tsis raug. Cov txheej txheem tseem xav tau kev sib koom ua ke tsim nyog, xaim xaim ruaj khov, thiab ntsuas qhov ntsuas ntsuas.

7.3 Platform Laser Vuam Tshuab

Platform laser vuam tshuab yog tsim rau workpieces uas yuav tsum tau positioned ntawm lub platform los yog fixture. Lawv tuaj yeem siv rau cov khoom lag luam uas xav tau qhov chaw zoo ib yam, rov ua dua vuam txoj hauv kev, thiab tswj kev ua haujlwm.

Nyob ntawm qhov kev teeb tsa, cov cuab yeej siv platform tuaj yeem txhawb cov ntawv thov xws li precision sheet hlau Cheebtsam, stainless hlau cov khoom, thiab lwm yam hlau qhov chaw nrog cov txheej txheem vuam.

Rau cov khoom uas yuav tsum tau ua nruj me ntsis raws li kev xav tau, cov qauv kuaj yuav tsum kuaj xyuas qhov sib xws ntawm weld seam, decoloration, distortion, thiab cov tsos ntawm ob sab uas cuam tshuam.

7.4 Galvanometer Laser Vuam Tshuab

Galvanometer laser vuam tshuab siv lub tshuab scanning los coj cov kab teeb laser raws li txoj hauv kev. Tej zaum lawv yuav tsim nyog rau cov ntawv thov uas muaj cov qauv rov ua dua, cov haujlwm me me, lossis cov kev sib txuas uas tau txais txiaj ntsig los ntawm kev soj ntsuam ceev.

Qhov tsim nyog tiag tiag nyob ntawm qhov loj me, qhov vuam geometry, cov khoom siv, tuab, thiab lub tshuab kho qhov muag thiab kev teeb tsa.

Cov neeg tsim khoom yuav tsum paub meej tias qhov yuav tsum tau muaj txoj kev vuam, kev faib hluav taws xob, thiab cov lus qhia zoo tuaj yeem ua tiav nrog cov txheej txheem xaiv.

7.5 Robotic Laser Vuam Workstations

Robotic laser welding workstations yog tsim rau cov ntawv thov uas yuav tsum tau rov ua cov lus tsa suab, txoj hauv kev sib txuas, kev sib koom ua ke nrog cov khoom siv hluav taws xob, lossis qib siab ntawm cov khoom siv automation.

Tej zaum lawv yuav raug txiav txim siab rau cov khoom siv tsheb, cov khoom siv hauv tsev, cov qauv hlau, thiab lwm yam khoom uas yuav tsum tau ua dua.

Thaum ntsuas lub tshuab robotic, xav txog:

• Workpiece qhov ntev thiab qhov hnyav

• Weld txoj kev complexity thiab accessibility

• Fixture design thiab positioning raug

• Yuav tsum tau lub sij hawm voj voog ntau lawm

• Kev tshuaj xyuas zoo thiab kev saib xyuas cov txheej txheem

• Kev sib xyaw ua ke nrog cov dej ntws thiab cov dej ntws

• Cov neeg ua haujlwm kev nyab xeeb thiab kev tiv thaiv

Rau cov khoom ntim siab, kev xaiv cov khoom siv yuav tsum ua raws li cov txheej txheem tsim khoom tiav es tsis yog lub tshuab vuam ib leeg.

8. Vim li cas cov qauv vuam ntsuas tseem ceeb ua ntej yuav lub tshuab laser vuam

Lub tshuab ntsuas lub zog thiab cov lus qhia tshwj xeeb tsis tuaj yeem kwv yees nws qhov kev ua haujlwm vuam ntawm ib qho haujlwm tshwj xeeb. Txawm hais tias ob yam khoom siv tib yam khoom siv nominal, qhov sib txawv ntawm cov tuab, qhov chaw saum npoo, kev sib koom ua ke, thiab cov kev xav tau zoo yuav ua rau cov txiaj ntsig sib txawv.

Ua ntej yuav khoom, cov tuam txhab tsim khoom yuav tsum npaj cov neeg sawv cev ua haujlwm thiab tshuaj xyuas cov txheej txheem vuam tiag tiag.

Cov ntsiab lus tseem ceeb ntawm kev ntsuam xyuas muaj xws li:

1. Weld tsos
Kos weld seam sib xws, nto discoloration, spatter, thiab lwm yam pom tsis xws luag raws li cov khoom yuav tsum tau.

2. Kev nkag mus thiab kev sib koom ua ke zoo
Paub meej tias cov vuam ua tau raws li qhov yuav tsum tau nkag mus thiab fusion txheej txheem. Yog tias tsim nyog, ua qhov kev tshuaj xyuas tsim nyog lossis tsis muaj kev puas tsuaj.

3. Deformation thiab kub cuam tshuam
Ntsuam xyuas seb cov cua kub nkag ua rau qhov tsis txaus ntseeg lossis kev puas tsuaj rau cov chaw nyob ze.

4. Repeatability
Test ntau cov qauv los txiav txim seb cov txheej txheem puas tuaj yeem tswj tau cov txiaj ntsig zoo ib yam es tsis tsim ib qho kev ua tiav vuam nkaus xwb.

5. Ntau lawm efficiency
Ntsuas vuam ceev, loading thiab unloading lub sij hawm, fixture yuav tsum, thiab lub sij hawm lub sij hawm nyob rau hauv tiag tiag ntau lawm.

6. Cov cuab yeej siv tau
txiav txim siab seb lub tshuab tuav, tsis siv neeg xaim pub tshuab, tshuab platform, galvanometer system, lossis chaw ua haujlwm neeg hlau yog qhov tsim nyog tshaj plaws.

Kev sim ua piv txwv pab cov tuam txhab txheeb xyuas cov txheej txheem kev pheej hmoo ntxov, sib piv cov kev xaiv khoom siv, thiab txo qhov kev yuav khoom uas tsis ua raws li lawv cov kev xav tau.

9. Xaiv cov khoom siv laser vuam raws li koj daim ntawv thov tiag

Laser vuam kev ua tau zoo sib txawv nrog cov khoom siv, thickness, deg mob, sib koom ua ke, thiab txheej txheem txheej txheem. Stainless hlau, carbon hlau, galvanized steel, aluminium alloys, thiab tooj liab txhua tus muaj lawv tus kheej txoj kev xav. Kev xaiv cov cuab yeej tsim nyog yog li ntawd yuav tsum tau muaj kev ntsuam xyuas ntawm ob qho tib si workpiece thiab cov khoom yuav tsum tau ua.

Guangdong Pudian Automation Technology Co., Ltd. (PDKJ) yog cov chaw tsim khoom ntawm cov chaw vuam tshuab, laser vuam tshuab, thiab cov cuab yeej siv vuam tshuab. Nws cov khoom muaj xws li handheld laser vuam tshuab, tsis siv neeg hlau-pub laser vuam tshuab, platform laser vuam tshuab, galvanometer laser vuam tshuab, thiab robotic laser vuam workstations.

Yog tias koj tab tom ntsuas cov khoom siv laser vuam rau cov khoom tshiab lossis cov kab ntau lawm, xa koj cov khoom ua haujlwm rau PDKJ rau kev ntsuam xyuas cov txheej txheem vuam pub dawb thiab kuaj dawb cov qauv vuam . Kev sim nrog koj cov khoom siv tiag tiag tuaj yeem pab ntsuam xyuas qhov zoo ntawm qhov vuam, qhov zoo li, kev tsim nyog, thiab cov khoom siv ua ntej koj txiav txim siab yuav khoom.

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E-Mail: pdkj@gd-pw.com

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