NAVI Titaniumsintered hlau discsyog precision ntxeem tau cov khoom tsim los ntawm compacting hlau hmoov thiab sintering lawv nyob rau hauv kev tswj tej yam kev mob. Lawv interconnected microscopic pores tso cai tswj cov dej ntws thaum khaws cov khoom tsis xav tau, txhawb kev pom, roj dispersion, tswj ntws, thiab kev tiv thaiv cov khoom siv. Muaj rau qhov xav tau kev lag luam ib puag ncig, cov discs ua ke tswj cov qauv pore nrog cov khoom muaj zog thiab corrosion kuj. NAVI Titanium tswj nruj nruj kev tswj hwm zoo thiab muab qhov ntev, cov khoom siv, qhov loj me, thiab kev txhawb nqa rau cov ntawv thov sib txawv.
Kev daws teeb meem ntawm NAVI Titanium
NAVI Titanium's disc yog tsim los siv cov khoom pov thawj hlau hmoov sintering txheej txheem, xa ib tug siab -kev ua tau zoo ntxeem tau disc nrog uniform, controllable pore lug. Qhov zoo tshaj plaws rau kev pom tseeb, sparging, venting, thiab gas diffusion, nws muaj cov kua qaub zoo heev -alkali corrosion kuj, siab - kub stability, thiab nyob rau hauv -situ regeneration rau txhim khu kev qha lag luam nyob rau hauv hnyav tej yam kev mob. Customized diameters, thicknesses, thiab filtration ratings muaj nyob rau ntau hom kev lag luam. Cov ncauj lus kom ntxaws qhia tau qhia hauv cov lus hauv qab no.
NAVI Titanium sintered ntxeem tau discs feature controllable porosity thiab uniform pore faib, muab ib tug sib npaug ntawm permeability thiab mechanical zog. Muaj Zin puag ncig, square, thiab hexagonal tawm tswv yim, cov discs kuj tuaj yeem ua rau cov duab customized. Txoj kab uas hla, tuab, qhov pore loj, thiab qhov ntev ntawm qhov sib txuas tuaj yeem ua rau cov duab kos lossis cov qauv, nrog cov qauv siv rov siv tau los txhawb kev rov ua dua thiab kev pabcuam.
Daim ntawv thov
Nws tau nce ntxiv rau hauv proton exchange membrane (PEM) hydrogen systems uas tswj cov roj thiab cov kua dej ncaj qha cuam tshuam rau pawg ruaj khov. Lawv interconnected pore architecture enables tswj kev thauj thaum muab txhua yam kev txhawb nqa nyob rau hauv sib txawv siab. Nyob rau hauv cov roj diffusion sib sau ua ke, ntxeem tau hlau discs ua rau cov khoom siv reactant xa thiab pab tswj kev hloov pauv hauv zos nyob rau hauv cov chaw ua haujlwm.
Titanium-raws li versions yog tshwj xeeb tshaj yog haum vim hais tias lawv ua ke corrosion kuj nrog hluav taws xob conductivity nyob rau hauv heev oxidative ib puag ncig. NAVI Titanium dhau qhov pom yooj yim, cov discs ua haujlwm raws li kev thauj mus los cuam tshuam uas cuam tshuam rau kev siv reactant, kev tswj dej, thiab kev ua haujlwm sib xws. Ua tib zoo tswj qhov pore loj, porosity, thiab tuab tso cai rau cov tuam txhab tsim kho tus cwj pwm thauj mus rau cov txheej txheem electrolyzer sib txawv thiab kev ua haujlwm tam sim no.
Semiconductor & Electronics
Ultra- ib puag ncig kev tsim khoom huv si xav tau cov khoom muaj peev xwm tswj xyuas cov kab mob sib kis tsawg tshaj plaws thoob plaws kev tsim khoom tas mus li.Sintered hlau discsyog dav siv nyob rau hauv ultrapure dej systems, tshwj xeeb roj purification, thiab slurry tuav vim hais tias lawv cov rigid ntxeem tau qauv txhawb nqa ruaj khov tsis muaj fiber ntau shedding. Tsis zoo li cov khoom siv polymer-raws li cov xov xwm, cov khoom siv hlau nplaum ua rau siab kub, rov ua dua tshiab, thiab ua rau muaj tshuaj lom neeg hnyav thaum tswj kev ruaj ntseg. Lawv tswj qhov pore architecture pab tshem tawm cov kab mob ua ntej rhiab lithography, deposition, los yog etching theem. Raws li cov txheej txheem semiconductor txuas ntxiv mus rau qhov loj me me, NAVI Titanium cov khoom pom tau xav tias yuav pab tsis tau tsuas yog rau kev tshem tawm cov khoom, tab sis kuj ua rau kev kwv yees ua kua dej thiab cov kev pabcuam ntev hauv cov chaw tsim khoom.
Daim ntawv qhia kev yuav khoom
Kev Tswj Xyuas Zoo (QC)
NAVI Titanium lub chaw tsim khoom yog ISO 9001 tau ntawv pov thawj, thiab txhua qhov disc tau soj ntsuam nruj zoo npog qhov porosity, permeability, npuas taw tes, thiab qhov tseeb qhov tseeb. Txhawm rau ua kom pom tseeb peb qhov kev lees paub zoo, peb nthuav tawm cov ntaub ntawv tshuaj xyuas no rau kev siv nkaus xwb. Nyem lub pob hauv qab no txhawm rau saib COA thiab txheeb xyuas peb cov khoom muaj ntawv pov thawj.
Kev tsim khoom
Peb cov disc yog tsim los ntawm kev tswj hwm nruj heev -theem txheej txheem:
Kev xaiv raw khoom
High -purity hlau hmoov (stainless steel, titanium, tooj dag, thiab lwm yam) raug xaiv thiab muab qhab nia los xyuas kom meej qhov sib npaug particle loj faib thiab tshuaj purity.
Powder Screening & Batching
Powders yog precisely sieved thiab blended raws li lub hom phiaj pore loj, porosity, thiab permeability yuav tsum tau, guaranteeing uniform thiab controllable pom kev ua tau zoo.
Tsim / Compaction
Cov hmoov yog txias- nias rau hauv cov discs siv cov pwm precision, ua tiav cov xim ntsuab ntom nrog qhov tseeb txoj kab uas hla thiab thickness tswj.
Sintering
Sintered ntawm qhov kub thiab txias hauv qhov chaw tiv thaiv, cov khoom sib txuas ruaj khov ntawm cov ntsiab lus sib cuag, ua kom muaj zog, sib cuam tshuam cov ntxeem tau nrog qhib qhov pores thiab zoo heev txhua yam muaj zog.
Post{0}}Kev ua haujlwm
Cov discs yog machined, hauv av, los yog ntug- kho kom ua tau raws li qhov ua tau zoo, nrog rau kev xaiv rau ntau- txheej lamination, vuam rings, lossis kev cai framing.
Kev Tshawb Fawb & Kev Ntsuas Zoo
Txhua lub disc raug kuaj rau cov npuas taw tes, permeability, porosity, flatness, thiab compressive zog, kom ntseeg tau tag nrho ua raws li ua ntej ua zaub mov xa tuaj.
Txoj Cai Ua Haujlwm
NAVI Titaniumsintered hlau discua haujlwm raws li qhov tseeb txaus-kev tswj hwm lub hauv paus es tsis yog cov cuab yeej tshuaj ntsuam xyuas yooj yim. Nws cov architecture sab hauv coj cov txheej txheem kev tshaj tawm los ntawm ntau cov xov xwm microscopic thaum txwv tsis pub muaj cov kab mob tsis zoo los ntawm kev txuas mus rau hauv qab. Tsis zoo li cov khoom siv saum npoo av uas ua rau kev sib cais tsuas yog ntawm lub ntsej muag sab nrauv, sintered lim disc faib qhov kev txiav txim no thoob plaws hauv lub cev, ua rau nws tsim nyog rau cov tshuab uas xav tau kev tshaj tawm xov xwm thiab kev pabcuam ntev. Kev xaiv tus qauv tsim nyog yuav tsum tau xav txog kev teeb tsa qhov ntev, sab hauv architecture, cov yam ntxwv nruab nrab, thiab tag nrho cov kev xav tau ntawm lub cev.
Lub hauv paus ntsiab lus ntawm kev khiav hauj lwm ntawm sintered disc tso siab rau ib qho kev sib koom ua ke uas tsim thaum lub sij hawm siab -kub consolidation. Es tsis txhob nyob ntawm ib qho kev ntsuam xyuas ib qho chaw, tag nrho lub cev muaj ntau txoj hauv kev microscopic uas tswj kev hla ntawm cov xov xwm sib txawv. Cov kab mob loj heev raug cuam tshuam mus rau hauv cov nqe lus no, thaum cov kwj ua tiav txuas ntxiv los ntawm cov kab txuas ntxiv. Vim tias kev sib cais tshwm sim thoob plaws hauv qhov ua tiav tuab tsis yog ntawm qhov nkag xwb, cov txheej txheem ua haujlwm tau muab faib ua ntau qhov sib npaug dua li ntau qhov kev tshaj tawm. Thaum xaiv engineering, NAVI Titanium cov neeg tsim qauv ntsuas ntau qhov sib txawv ua ke, suav nrog channel geometry, nruab nrab viscosity, kub hloov pauv, qhov sib txawv thauj khoom, thiab yuav tsum tau dhau los. Zuag qhia tag nrho kev ua tau zoo nyob ntawm kev sib cuam tshuam ntawm cov kev txwv no ntau dua li ntawm ib qho kev qhia tshwj xeeb. Ib qho kev sib koom ua ke zoo ua tiav qhov sib npaug tsim nyog ntawm kev muaj peev xwm sib cais, kev muaj peev xwm dhau los, thiab kev ntseeg tau ntawm kev ua haujlwm nyob rau hauv cov kev pabcuam ua haujlwm.
Qhov sib txawv ntawm Sintered Disc thiab Traditional Lim Media
Cov ntawv xov xwm sib cais feem ntau siv cov ntaub ntawv xov hlau, cov ntaub ntawv polymer, daim ntawv cartridges, lossis cov ntaub ntawv fiber ntau. Cov kev daws teeb meem no tseem tsim nyog rau ntau qhov kev teeb tsa tab sis yuav dhau los ua qhov ua tau tsawg dua qhov kev rov tsim dua tshiab, qhov kub siab, qhov ruaj khov, lossis xav tau kev pabcuam ib puag ncig. NAVI Titanium sintered hlau lim disc txais ib qho kev sib xyaw ua ke ntawm cov hlau tsis muaj ntau txheej txheej, uas ua rau muaj kev sib txuam ntau dua. Lwm qhov sib txawv yog nyob rau hauv engineering kev koom ua ke. Ib tug sintered ntxeem tau disc tswj qhov sib npaug ntawm qhov sib npaug thoob plaws kev ua haujlwm txuas ntxiv, tso cai rau nws kom haum cov cuab yeej siv qhov kev tiv thaiv kev tiv thaiv raug txwv lossis kev saib xyuas lub sijhawm yuav tsum ntev dua. Yog li ntawd, cov kws tsim qauv tsim feem ntau sib piv tsis yog kev sib cais thawj zaug nkaus xwb tab sis kuj tseem muaj peev xwm tsim dua tshiab, kev npaj lub neej, hloov zaus, khoom siv sib xws, thiab tag nrho cov tswv cuab tus nqi thaum xaiv cov khoom tsim nyog.
Cov txiaj ntsig tseem ceeb
Ib qho ntawm qhov zoo tshaj plaws ntawm sintered disc yog nws lub peev xwm los xa cov txiaj ntsig sib cais rov qab los ntawm kev teeb tsa qhov twg cov yam ntxwv xov xwm hloov pauv lub sijhawm. Tsis yog kev cia siab rau ib qho kev ntsuam xyuas ib qho chaw, cov khoom siv sab hauv coj cov kwj deg ua haujlwm los ntawm ntau cov kab hauv microscopic, tso cai rau cov kab mob tsis zoo tuaj yeem cuam tshuam maj mam. Piv nrog rau cov khoom siv mesh, ib qho sintered hlau lim disc siv nws lub cev tag nrho raws li qhov chaw ua haujlwm nquag, ua rau nws tsim nyog rau kev tuav ib zaug -phase thiab multiphase media. Cov qib sib txawv ntawm cov qauv tsim muaj kom phim cov cuab yeej kuaj, cov cuab yeej tsim khoom, cov kab hloov pauv, thiab lwm yam tshwj xeeb engineering systems.
Lwm qhov txiaj ntsig yog los ntawm cov txheej txheem sab hauv, uas txhawb nqa kev xa xov xwm tsis tu ncua thaum ua haujlwm. Kev hloov pauv sai sai hauv kev thauj khoom lossis cov kab mob sib kis tuaj yeem cuam tshuam cov khoom siv hauv qab yog tias xaiv cov khoom tsis zoo. NAVI Titanium yog ib qho kev qhia zoosintered hlau discpab tswj kom ruaj khov throughput thaum txo kev cuam tshuam los ntawm cov khoom raug tshem tawm. Txoj hauv kev no muaj txiaj ntsig tshwj xeeb rau kev teeb tsa yuav tsum nyob hauv online rau lub sijhawm txuas ntxiv vim tias kev npaj kho yuav yooj yim dua thiab cov kev pabcuam cuam tshuam tuaj yeem txo qis. Los ntawm optimized qhov ntev thiab cov khoom xaiv, cov khoom siv los ua ib feem tseem ceeb ntawm cov cuab yeej sib cais niaj hnub es tsis yog ib qho khoom siv hloov tau yooj yim.
Ntau qhov kev teeb tsa engineering ua haujlwm nyob rau hauv qhov xav tau ib puag ncig uas muaj qhov kub siab, kev tawm tsam hnyav, rov tsim dua tshiab, lossis kev ua haujlwm ntev. Lub sintered disk hais txog cov kev cai no los ntawm kev sib koom ua ke ntawm lub cev hlau es tsis txhob muaj ntau txheej txheej sib dhos. Qhov no yog ib qho -cov khoom tsim kho txhim kho cov qauv kev ntseeg siab thiab qhov sib xws ntawm qhov sib xws thoob plaws qhov kev pabcuam txuas ntxiv. Raws li qhov tshwm sim, cov tswv cuab tuaj yeem tsim cov sijhawm saib xyuas kom paub tseeb ntxiv thaum txo qis cov khoom tsis tsim nyog hloov pauv.
Lwm qhov zoo dua ntawm NAVI Titanium sintered disk lim yog nws kev sib raug zoo nrog ntau yam kev kho dua tshiab. Nyob ntawm kev teeb tsa, kev ua haujlwm muaj peev xwm feem ntau tuaj yeem rov qab los ntawm kev rov qab ntxuav, kev kho ultrasonic, thermal regeneration, lossis lwm yam kev saib xyuas pom zoo. Cov qauv siv rov qab siv tau no muab cov txiaj ntsig kev lag luam ntxiv uas cov khoom siv pov tseg yuav ua rau cov khoom siv ntxiv, kaw zaus, thiab cov nqi pov tseg. Yog li ntawd, ntau qhov haujlwm engineering ntsuas tus nqi ntawm lub neej tsis yog tsuas yog thawj tus nqi yuav khoom thaum xaiv cov khoom sib cais.
Niaj hnub nimno engineering systems tsis tshua muaj kev ua haujlwm nrog cov qauv kev qhia tshwj xeeb. Kev teeb tsa qhov ntev, kev sib txuas sib txuas, cov phiaj xwm dhau los, thiab cov khoom siv layouts feem ntau txawv ntawm ib qhov project mus rau lwm qhov. Vim li no, NAVI Titanium sintered disc yog muaj nyob rau hauv ntau txoj kab uas hla, thicknesses, kev twb kev txuas hom, thiab sab hauv configurations, enabling engineers kom phim cov khoom sib txawv architectures yam tsis tas yuav redesign. Txawm hais tias tau muab tso rau hauv cov cuab yeej sim ntsuas me me lossis kev koom ua ke rau hauv cov chaw tsim khoom loj, tib lub tswv yim tsim tuaj yeem ua kom haum rau ntau yam kev xav tau.
Qhov kev hloov pauv no tau ua rau sintered lim disc tau txais thoob plaws thoob ntiaj teb kev lag luam engineering. Cov neeg tsim khoom siv, EPC cov neeg cog lus, thiab cov neeg koom ua ke feem ntau xav tau cov kev daws teeb meem tsis yog cov khoom lag luam catalog. Los ntawm kev hloov kho qhov ntev, qib khoom, cov ntsiab lus sib txuas, thiab cov khoom siv sab hauv, cov neeg muag khoom tuaj yeem txhawb nqa qhov project-cov hom phiaj tshwj xeeb thaum tswj kev tsim khoom sib xws. Qhov kev hloov pauv no ua rau tib lub tshuab thev naus laus zis los ua haujlwm rau kev tsim khoom, kev tshawb fawb hauv chav kuaj, ib puag ncig engineering, khoom noj khoom haus, thiab ntau lwm yam kev lag luam tshwj xeeb.
Tshuag Muaj Peev Xwm & Muab Khoom Muaj
NAVI Titanium tuav cov khoom tsim nyog rau kev xaivsintered hlau disccov lus qhia tshwj xeeb los txhawb cov neeg siv khoom uas xav tau cov khoom hloov pauv, sim kom muaj nuj nqis, lossis kev yuav khoom tsis tu ncua. Cov khoom lag luam muaj xws li feem ntau thov disc diameters, qib khoom, qhov loj me, thiab cov kev xaiv tuab, nyob ntawm cov sijhawm tsim khoom tam sim no thiab cov khoom lag luam. Kev khaws cov kev xaiv tshwj xeeb muaj tuaj yeem pab cov neeg siv khoom txo lub sijhawm tos thaum cov qauv ntsuas raws li lawv cov kev pom zoo. Ua ntej kev txiav txim, cov neeg yuav khoom tuaj yeem muab cov khoom xav tau, txoj kab uas hla, tuab, qhov pore ntsuam xyuas, kom muaj nuj nqis, thiab kev ua haujlwm yog li peb tuaj yeem tshawb xyuas cov khoom tam sim no thiab pom zoo cov kev xaiv tsim nyog. Rau cov neeg siv khoom uas yuav tsum tau ceev, kev txheeb xyuas cov khoom lag luam tseem tuaj yeem pab txiav txim siab seb cov khoom muag uas twb muaj lawm tuaj yeem txhawb nqa cov khoom xa tuaj ib nrab thaum cov discs customized tau npaj rau kev xa khoom tom ntej raws li cov lus pom zoo thiab cov sijhawm yuav khoom.
Cov khoom lag luam rau kev txiav txim tsis tu ncua
Rau cov neeg muas zaub yuav cov discs nyob rau hauv ib tug rov tshwm sim, kev npaj cov khoom muag tuaj yeem npaj nyob ib ncig ntawm kev xav tau, kev txiav txim ntau zaus, thiab feem ntau siv tshwj xeeb. NAVI Titanium tuaj yeem tshuaj xyuas keeb kwm kev yuav khoom ntau thiab kev xav tau los pab txiav txim siab cov khoom lag luam tsim nyog rau kev xaj rov qab. Txoj hauv kev no yuav muaj txiaj ntsig zoo rau cov chaw saib xyuas, cov khoom siv lim dej, cov chaw muag khoom, thiab cov neeg siv khoom lag luam uas yuav tsum tau hloov cov discs ntawm lub sijhawm npaj. Yog qhov ua tau zoo, nquag xaj cov lus qhia tshwj xeeb tuaj yeem teem caij ua ntej txhawm rau txhawb nqa kev npaj khoom kom zoo. Cov neeg yuav khoom kuj tuaj yeem sib tham txog cov khoom xa tuaj uas xav tau, lub sijhawm xa khoom, qhov xav tau ntim khoom, thiab lub hom phiaj yuav khoom hnub ua ntej kev npaj yuav pib. Los ntawm kev sib koom ua ke cov khoom muag nrog cov qauv kev yuav khoom tiag tiag, cov neeg siv khoom tuaj yeem zam cov khoom tsis tsim nyog thaum tswj kev nkag mus rau feem ntau xav tau sintered disc specifications thaum hloov lossis hloov cov kev xav tau ntxiv thaum lub sijhawm ua haujlwm.
Lub peev xwm Tshuag tsis txwv rau tus qauv sintered ntxeem tau disc specifications. Thaum cov neeg siv khoom xav tau qhov tshwj xeeb qhov ntev, qhov ntsuas qhov pore, cov ntaub ntawv, lossis lwm yam kev tsis sib xws, NAVI Titanium tuaj yeem tshuaj xyuas cov ntsiab lus thov thiab txiav txim siab seb cov khoom muag uas twb muaj lawm tuaj yeem txaus siab rau qhov kev txiav txim lossis seb yuav xav tau cov khoom tshiab. Qhov no tuaj yeem pab tau tshwj xeeb thaum cov neeg siv khoom xav tau cov discs uas txawv ntawm qhov ntau thiab tsawg tab sis tseem xav tau kev sib koom ua ke. Rau qhov kev yuav khoom loj dua, cov neeg yuav khoom tuaj yeem sib tham txog qhov kwv yees ntau thiab xav tau lub sijhawm xa khoom yog li kev tsim khoom thiab cov khoom muag tuaj yeem txiav txim siab ua ke. Cov neeg siv khoom tuaj yeem muab cov duab kos, qhov tshwj xeeb, qauv qhov ntev, lossis cov duab rau kev tshuaj xyuas ua ntej hais. Kev sib koom ua ke muaj cov khoom lag luam nrog kev npaj tsim khoom tuaj yeem muab cov pab pawg yuav khoom tau yooj yim dua thaum tswj cov kev xav tau ceev, kev txiav txim siab, rov yuav khoom, thiab kho cov kev pabcuam sintered ntxeem tau rau cov kev pom sib txawv.
FAQ
Lub sintered hlau disc puas tuaj yeem ntxuav thiab rov siv dua?
+
-
Feem ntau, yog. Txoj kev ntxuav kom tsim nyog yog nyob ntawm cov khoom siv thiab cov khoom paug uas khaws cia los ntawm lub disc. Gas tshuab, ua kua dej, rov qab ntxuav, kho ultrasonic, los yog tshuaj ntxuav tej zaum yuav raug txiav txim siab nyob ntawm seb qhov xwm txheej tshwj xeeb. Cov txheej txheem ntxuav yuav tsum tsis txhob muaj kev siv tshuab ntau dhau los yog tshuaj lom neeg uas tuaj yeem tua cov khoom siv.
Kev rov ua dua puas txo cov kev pab cuam lub neej ntawm lub disc?
+
-
Kev rov ua dua tsis tau txhais hais tias lub disc yuav tsum raug muab pov tseg, tab sis kev kho mob hnyav tuaj yeem ua rau nws lub sijhawm siv tau. Kev kub siab dhau thaum rov qab ntxuav, cov cuab yeej siv tshuaj txhuam, cov tshuaj tsis haum, lossis rov ua kom sov tuaj yeem ua rau puas tsuaj. Cov neeg siv yuav tsum xaiv ib txoj kev tu raws li ob qho tib si cov khoom siv disc thiab cov khoom uas khaws cia.
Cov pore loj thiab qhov ntev tuaj yeem kho tau?
+
-
Yog lawm. Sintered hlau discs tuaj yeem tsim nyob rau hauv qhov sib txawv diameters, thicknesses, pore ranges, cov ntaub ntawv, thiab kev sib txuas hom. Customization yog tshwj xeeb tshaj yog pab tau thaum lub disc yuav tsum haum ib tug uas twb muaj lawm tuav los yog thaum tus qauv loj tsis tuaj yeem muab qhov yuav tsum tau ntws thiab khaws cov yam ntxwv.
NAVI Titanium puas tuaj yeem tsim cov hlau sintered rau cov haujlwm hloov pauv?
+
-
Yog lawm. Peb tuaj yeem ntsuas cov kev hloov pauv uas siv cov duab kos, cov qauv, cov duab, lossis cov kev qhia tshwj xeeb uas twb muaj lawm -. Cov neeg siv khoom tuaj yeem muab qhov qub disc qhov ntev, cov khoom siv, qhov xav tau ntawm qhov pore, kev ua haujlwm, thiab txhua yam kev paub txog kev ua haujlwm kom paub cov lus qhia tsim nyog tuaj yeem tham ua ntej tsim khoom.
Kuv yuav ua li cas thiaj li txo tau cov nqi hloov pauv uas tsis xav tau?
+
-
Txoj hauv kev zoo tshaj plaws yog xaiv cov disc raws li kev ua haujlwm tiag tiag thiab tsim kom muaj kev soj ntsuam yooj yim. Kev soj ntsuam qhov sib txawv ntawm qhov sib txawv, kev coj tus cwj pwm, theem kev sib kis, thiab kev tu zaus tuaj yeem pab txheeb xyuas cov kev hloov pauv ua ntej lub disc yuav raug txwv tag nrho. Khaws batch thiab cov ntaub ntawv ua haujlwm tuaj yeem ua rau kev txiav txim siab yuav khoom yav tom ntej kom raug dua.
Cim npe nrov: Tuam Tshoj sintered hlau disc manufacturers, lwm tus neeg, Hoobkas
