Dej Chiller Rau Dej Txias
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Dej Chiller Rau Dej Txias

Dej Chiller Rau Dej Txias

Cov dej chiller yog cov cuab yeej siv tshuab siv los ua kom dej txias thiab tswj nws ntawm qhov kub thiab txias. Nws yog feem ntau ua haujlwm nyob rau hauv ntau yam kev lag luam, chaw kuaj mob, thiab chaw lag luam uas yuav tsum tau ua kom txias txias.
Xa kev nug
Hauj lwm lawm

 

Lub tshuab ua dej txias yog lub tshuab tub yees tsim los tshem tawm cov cua sov los ntawm dej los yog lwm yam txheej txheem dej, ua kom nws qhov kub thiab txias. Nws tau siv thoob plaws ntau yam kev lag luam thiab cov ntawv thov uas tswj cov cua txias yog qhov tseem ceeb, xws li hauv cov txheej txheem kev lag luam, HVAC systems, cov cuab yeej kho mob, cov chaw khaws ntaub ntawv, thiab cov chaw sim.

 

Ⅰ.A dej chiller muaj ob peb yam tseem ceeb uas ua hauj lwm ua ke los pab cov txheej txheem txias:

 

1. Compressor:

Muaj nuj nqi: Lub compressor yog lub plawv ntawm lub chiller. Nws pressurizes lub refrigerant gas, tsa nws kub thiab siab.

Hom: Reciprocating, ntsia hlau, centrifugal, lossis scroll compressors feem ntau yog siv, txhua tus nrog nws qhov zoo ntawm kev ua haujlwm thiab kev siv.

2. Condenser:

Muaj nuj nqi: Tom qab compression, lub siab-siab, high-temperature refrigerant gas ntws mus rau lub condenser. Ntawm no, cov cua sov los ntawm cov tub yees raug tshem tawm thiab dissipated mus rau ib puag ncig, ua rau cov roj condense rau hauv cov kua.

Hom: Cua txias condensers (siv ambient cua) los yog dej-txias condensers (siv dej kom tshem tawm cua sov) yog thawj hom.

3. Expansion Valve lossis Thermal Expansion Valve (TXV):

Muaj nuj nqi: Lub expansion valve tswj qhov ntws ntawm cov kua refrigerant mus rau hauv lub evaporator. Nws txo qis lub siab thiab kub ntawm lub tub yees thaum nws nkag mus rau hauv lub evaporator.

Hom: Muaj ntau hom, suav nrog thermostatic expansion li qub (TEVs) thiab hluav taws xob expansion li qub (EEVs).

4. Evaporator:

Kev Ua Haujlwm: Hauv lub evaporator, qhov qis-siab, qis-kub cov kua refrigerant absorbs cua sov los ntawm dej (los yog cov txheej txheem kua) circulating nyob ib ncig ntawm nws. Qhov kev hloov cua sov no ua rau cov kua refrigerant evaporate mus rau hauv cov pa roj.

Thaum tshav kub kub Exchanger: Cov dej txias los yog cov txheej txheem dej tau txias los ntawm cov txheej txheem kev sib hloov cua sov no.

Hom: Plhaub-thiab-tube, phaj-hom, lossis coil evaporators feem ntau siv tsim.

5. Cov tub yees:

Muaj nuj nqi: Cov tub yees yog cov kua dej ua haujlwm hauv lub voj voog chiller. Nws alternates ntawm cov kua thiab roj theem kom nqus thiab tso cua sov.

Hom: Ntau yam tub yees siv, nrog cov qauv tshiab feem ntau siv cov kev xaiv zoo ib puag ncig vim yog cov kev cai phasing tawm ozone-depleting tshuaj.

6. Tswj Vaj Huam Sib Luag thiab Sensors:

Kev Ua Haujlwm: Lub vaj huam sib luag tswj xyuas lub tshuab ua haujlwm chiller, suav nrog kev tswj kub, kev ua haujlwm compressor, thiab kev nyab xeeb nta. Sensors saib xyuas qhov ntsuas tsis zoo li qhov kub, siab, thiab ntws tus nqi kom ua haujlwm tau zoo.

7. Pumps:

Kev Ua Haujlwm: Cov twj tso kua mis ntws cov dej txias los yog cov dej ua haujlwm los ntawm lub tshuab chiller. Lawv tuav cov nqi sib xws uas tsim nyog rau kev sib pauv cua sov zoo.

Hom: Cov twj centrifugal lossis cov twj tso kua mis zoo yog feem ntau siv.

8. Thaum tshav kub kub Exchangers:

Muaj nuj nqi: Cov no hloov cov cua sov ntawm lub tub yees thiab cov dej los yog cov txheej txheem kua. Lawv yog qhov tseem ceeb rau kev ua kom txias kom zoo.

Hom: Lawv tuaj yeem yog plhaub-thiab- raj, phaj-thiab-thav duab, lossis brazed phaj kub exchangers.

9. Condenser Ntxuam lossis Txias Ntauwd (rau cov dej txias chillers):

Muaj nuj nqi: Cua txias chillers siv cov kiv cua condenser kom dissipate cua sov, thaum cov dej txias chillers cia siab rau cov yees txias kom tsis txhob cua sov rau hauv qhov chaw.

10. Rwb thaiv tsev thiab casing:

Muaj nuj nqi: Txhawm rau kom muaj txiaj ntsig zoo thiab tiv thaiv kom tsis txhob muaj cua sov, cov khoom siv chiller feem ntau insulated. Cov txheej txheej tiv thaiv cov khoom siv sab hauv thiab pab muaj suab nrov.

 

Cov Cheebtsam no ua haujlwm nyob rau hauv synchronization nyob rau hauv lub chiller system, kom ntseeg tau tias kev hloov ntawm tshav kub los ntawm cov txheej txheem kua mus rau lub tub yees thiab ces mus rau ib puag ncig, thaum kawg muab qhov yuav tsum tau txias nyhuv.

 

Ⅱ.Muaj ntau hom dej chillers, txhua tus tsim nrog cov yam ntxwv tshwj xeeb thiab kev siv hauv siab. Cov hom tseem ceeb muaj xws li:

 

1. Cua txias chillers:

Functionality: Cov chillers no siv cua kom tshem tawm cov cua sov ntawm lub tub yees.

Kev Siv: Zoo tagnrho rau cov ntawv me me mus rau nruab nrab qhov chaw muaj dej lossis cov nqi dej muaj kev txhawj xeeb.

Kev txhim kho: Yooj yim rau nruab thiab xav tau kev saib xyuas tsawg dua li cov dej txias chillers.

Qhov chaw: Suited rau ib puag ncig uas muaj qhov cua zoo los pab txhawb kev sib pauv cua sov.

8HP air cooled chiller

 

2. Dej-txias chillers:

Functionality: Cov chillers no siv dej kom tshem tawm cov cua sov ntawm lub tub yees.

Kev Siv: Feem ntau siv rau hauv cov ntawv loj dua qhov twg cov dej txaus txaus thiab cov cua kub dissipation yog qhov tseem ceeb.

Efficiency: Ntau dua li cov cua txias chillers vim muaj peev xwm hloov cov cua sov zoo dua.

Qhov yuav tsum tau muaj: Yuav tsum muaj qhov chaw ntxiv rau cov cua txias thiab cov dej ntws.

water cooled screw water chiller1

 

3. Absorption Chillers:

Kev ua haujlwm: Lawv siv cov cua sov, tsis yog lub zog siv hluav taws xob, los tsav cov txheej txheem txias, feem ntau siv cov cua sov los ntawm chav dej, dej kub, los yog combustion gases.

Kev Siv: Feem ntau siv rau hauv kev lag luam thiab kev lag luam chaw uas cov khoom siv hluav taws xob pov tseg lossis cov cua sov ntau dhau.

Lub zog qhov chaw: tuaj yeem siv los ntawm cov nkev, hluav taws xob, lossis lwm yam khoom siv hluav taws xob, muab kev ua haujlwm yooj yim.

 

4. Centrifugal Chillers:

Functionality: Ua haujlwm siv lub zog centrifugal los ua kom cov roj cua txias.

Kev Siv: Haum rau kev lag luam loj lossis kev lag luam kev lag luam uas xav tau kom muaj peev xwm txias txias.

Efficiency: Paub txog lawv lub zog ua haujlwm ntawm cov nplai loj dua.

 

5. Scroll Chillers:

Functionality: Siv scroll compressor, uas muaj cov khoom siv kauv-zoo li tus, rau compressing roj refrigerant.

Kev Siv: Zoo tagnrho rau cov ntawv me me, muab kev ntseeg siab thiab ua haujlwm ntsiag to.

Efficiency: Lawv ua haujlwm tau zoo ntawm cov khoom siv thauj khoom.

 

6. Ntsia Hlau Chillers:

Functionality: Siv cov ntsia hlau compressors rau refrigerant compression.

Siv: Haum rau nruab nrab mus rau cov ntawv loj, muab kev ua haujlwm zoo thiab kev ntseeg siab.

Adaptability: Ua tau zoo nyob rau ntawm qhov sib txawv ntawm cov khoom thauj.

 

7. Reciprocating chillers:

Functionality: Siv reciprocating pistons los compress cov roj tub yees.

Kev Siv: Feem ntau pom nyob rau hauv daim ntawv thov kev lag luam me vim lawv qhov loj me.

Nqi-effectiveness: Feem ntau tus nqi-zoo rau me me thiab kev siv.

 

Kev xaiv ntawm ib hom dej chiller nyob ntawm ntau yam xws li kev xav tau cua txias, muaj peev txheej (dej, chaw, lub zog), daim ntawv teev npe, thiab kev cia siab ua haujlwm. Kev sab laj nrog HVAC los yog chiller system cov kws tshaj lij tuaj yeem pab txiav txim siab yam tsim nyog tshaj plaws rau ib qho kev siv tshwj xeeb.

 

Ⅲ.Kev xaiv lub tshuab ua dej kom zoo yuav tsum xav txog ntau yam tseem ceeb los xyuas kom meej tias nws ua tau raws li koj qhov kev xav tau txias txias. Nov yog cov lus qhia ib kauj ruam los ntawm kauj ruam los pab hauv cov txheej txheem xaiv:

 

1. Txiav txim siab ua kom txias:

Txias Load: xam cov cua sov uas yuav tsum tau muab tshem tawm ib teev (hauv BTUs lossis tons ntawm tub yees). Qhov no nyob ntawm daim ntawv thov, qhov chaw, khoom siv, lossis cov txheej txheem uas xav tau kom txias.

 

Thaum tshav kub kub Load= C(specific tshav kub) * M(zoo tso zis ib teev) *Temp Change(T1-T2)

Yog hais tias rau cov dej, cov qauv yooj yim yog Cooling Capacity(kw){{0}} Flow Rate(m3/h)*Temp Change(inlet t1-qhov hluav taws xob t2)/0.{{5} }

 

Ntawm no ib co cua txias chav tsev conversion?
1 kcal/h = 1.163W, 1 W = 0.8598 kcal/h
1 Btu/h = 0.2931W, 1 W = 3.412 Btu/h
1 RT = 3.517 kW, 1 kW = 0.28434 RT
1 kcal/h = 3.968 Btu/h, 1 Btu/h = 0.252 kcal/h
1 USRT = 3024 kcal/h, 10000 kcal/h = 3.3069 RT

 

Yam khoom

Specification / Supplier

Lub peev xwm txias

Qauv

AYD-130A

kw/hr

289.9

Lub zog nkag

kws

134.2

Tam sim no

A

241.56

Fais fab mov

380V-3N{2}}HZ

Temp qhov hluav taws xob (degree)

2

refrigerant tswj

Expansion valve

Txias lub voj voog

ib

tub yees

R407C

Qhov Loj (mm) L * W * H

5000*2000*2200

Compressor

Style

Ntsia hlau

Quantity (set)

1

Compressor zog (kw)

115.7

Condenser

Style

Fin hom nrog tooj liab coil

Quantity (set)

10

Lub zog (kw)

11

Cua Volume (m3/h)

130000

Evaporator

Style

Plhaub thiab Tubes

Cov dej txias txias (m3/h)

50

Tube loj (DN)

100

Lub twj tso kua mis (kw)

7.5 (60m3 / h, 2.36bar)

Cov cuab yeej tiv thaiv

1. Phase tiv thaiv

2.Ntxuam overload tiv thaiv

3.High/low voltage tiv thaiv

4. overheat tiv thaiv

5.Anti-freeze tiv thaiv

Qhov hnyav (kg)

3980

Qhov tseem ceeb

Compressor

Hanbell

Condenser

Anyda

Evaporator

Jindian

Hluav taws xob

LS/NWS

Expansion Valve

Emerson

Tswj System

Pun

Lus Cim: Lub peev xwm ua kom txias yog nyob ntawm qhov ntsuas kub 35C, qhov hluav taws xob / qhov hluav taws xob 7/2C.

100ton water chiller

 

 

2. Nkag siab txog cov kev thov tshwj xeeb:

Temperature Range: Qhia qhov ntsuas kub uas yuav tsum tau ua rau daim ntawv thov.

Peb yuav tsum paub meej tias qhov condenser cheeb tsam loj, qhov hluav taws xob ntau dua qhov hluav taws xob condenser yog qhov loj dua.

 

Kev Ua Haujlwm: Xav txog ib puag ncig, qib av noo, thiab ib qho kev xav tau tshwj xeeb ua haujlwm.

Piv txwv li, yog tias cov dej chiller ua haujlwm ze ntawm hiav txwv, huab cua hauv hiav txwv yog corrosive, peb yuav tsum tau ua cov xim pleev xim rau thav duab thiab condensers, txais yuav FPR kiv cua thiab lwm yam.

 

Qhov chaw txwv: Txheeb xyuas qhov chaw muaj rau kev teeb tsa - txawm tias nws haum rau lub tshuab cua txias lossis dej txias chiller thiab cov khoom sib txuas.

 

3. Kev Siv Hluav Taws Xob:

Kev Siv Hluav Taws Xob: Saib rau cov chillers uas muaj zog Efficiency Ratios (EER) lossis Coefficient of Performance (COP) kom txo tau cov nqi khiav haujlwm.

Variable Speed ​​Drives (VSD): Xav txog cov chillers nruab nrog VSD thev naus laus zis kom ua tau zoo dua ntawm cov khoom sib txawv.

 

4. Hom Chiller:

Cua-Cooled vs. Dej-Cooled: Txiav txim siab ntawm huab cua-txias thiab dej-txias chillers raws li dej muaj, qhov chaw, thiab cov nqi txiav txim siab.

Hom Chiller tshwj xeeb: Xav txog kev nqus, centrifugal, ntsia hlau, scroll, lossis reciprocating chillers raws li daim ntawv thov loj, kev xav tau, thiab kev hloov pauv.

 

5. Kev tu thiab kev txhawb nqa:

Kev Kho Kom Zoo: Txheeb xyuas qhov yooj yim ntawm kev saib xyuas, muaj cov khoom seem, thiab kev pab txhawb nqa.

Warranty thiab Support: Xyuas kom cov chaw tsim khoom muab kev tiv thaiv kev ruaj ntseg thiab kev txhawb nqa.

 

6. Kev txiav txim siab txog nyiaj txiag:

Tus nqi pib piv rau Cov Nqi Siv Sij Hawm Ntev: Sib npaug cov nqi them ua ntej nrog cov nuj nqis ua haujlwm mus sij hawm ntev los txiav txim siab cov txiaj ntsig zoo tshaj plaws.

Rov qab los ntawm Kev Lag Luam (ROI): Xav txog qhov muaj peev xwm txuag tau hauv cov nqi hluav taws xob thiab nce kev ua tau zoo los ntsuas ROI ntawm lub chiller.

 

7. Kev Sib Tham thiab Kev Ntsuam Xyuas:

Cov tswv yim kws tshaj lij: Tham nrog HVAC engineers lossis cov kws tshaj lij hauv chiller los txheeb xyuas koj cov kev xav tau tshwj xeeb thiab pom zoo cov kev xaiv tsim nyog.

Technical Specifications: Xyuas cov ncauj lus kom ntxaws specifications, nrog rau kev muaj peev xwm, kev ntsuas kev ua tau zoo, thiab cov ntaub ntawv kev ua tau zoo muab los ntawm cov tuam ntxhab.

 

8. Ib puag ncig thiab kev cai:

Environmental Impact: Xav txog tej kev cai ib puag ncig thiab xaiv rau chillers nrog eco-friendly refrigerants raws li cov qauv tam sim no.

Local Codes thiab Standards: Xyuas kom lub chiller xaiv raws li cov cai hauv zos thiab cov qauv.

 

Ⅳ. Dej chillers pom daim ntawv thov thoob plaws ntau hom kev lag luam thiab cov haujlwm vim lawv muaj peev xwm ua kom dej txias los yog cov dej ua haujlwm zoo. Qee qhov kev siv tseem ceeb suav nrog:

 

1. Cov txheej txheem kev lag luam:

Kev tsim khoom: Cov tshuab cua txias, pwm, thiab cov khoom lag luam hauv kev lag luam xws li yas, roj hmab, hlau ua haujlwm, thiab textiles.

Chemical Processing: Tswj qhov kub thiab txias hauv ntau yam tshuaj tiv thaiv thiab cov txheej txheem.

Khoom noj khoom haus thiab dej haus: Tswj qhov kub thiab txias nyob rau hauv kev ua zaub mov, tsim dej haus, thiab chaw cia khoom.

2. HVAC Systems:

Cov Tsev Lag Luam Ua Lag Luam: Muab cov dej txias rau cov tshuab cua txias kom tswj cov cua sov hauv tsev.

Cov Cuab Yeej Cuab Yeej Cuab Yeej: Hauv cov tsev siab siab thiab thaj chaw nyob rau hauv nruab nrab cua txias tshuab.

3. Cov khoom siv kho mob thiab kuaj:

Kev Kho Mob Imaging: Txias MRI tshuab thiab lwm yam khoom siv kho mob kom tswj tau qhov ua tau zoo.

Laboratory Chaw: Khaws cov khoom siv hauv chav kuaj thiab cov txheej txheem ntawm qhov ntsuas kub thiab ruaj khov rau kev sim thiab kev tshawb fawb.

4. Data Centers thiab Electronics:

Server Rooms: Txias cov servers thiab cov khoom siv hluav taws xob hauv cov chaw khaws ntaub ntawv los tiv thaiv overheating thiab ua kom pom kev ua haujlwm zoo.

Electronics Manufacturing: Txias cov khoom siv hluav taws xob thaum lub sij hawm tsim khoom los tswj kev ua haujlwm thiab tiv thaiv kev puas tsuaj vim qhov kub thiab txias.

5. Yas thiab Txhaj Moulding:

Txhaj Moulding Tshuab: Txias pwm los pab txhawb lub zog ntawm cov yas molten thiab txhim kho kev tsim khoom thiab cov khoom zoo.

6. Kev tsim hluav taws xob thiab hluav taws xob cog:

Fais fab Generation: Cov tshuab cua txias hauv cov chaw tsim hluav taws xob los tswj cov cua sov uas tsim los ntawm cov txheej txheem tsim hluav taws xob, xws li hauv cov roj turbines lossis nuclear reactors.

7. Kev lag luam luam ntawv:

Printing Presses: Txias cov menyuam thiab cov khoom siv hauv cov txheej txheem luam ntawv kom tswj tau cov ntawv luam tawm zoo thiab tiv thaiv kom tsis txhob muaj cua sov.

8. Chemical and Pharmaceutical Industries:

Biotechnology thiab Pharmaceuticals: Ua kom tswj tau qhov kub thiab txias hauv kev tshawb fawb, tsim khoom, thiab khaws cia cov ntaub ntawv rhiab zoo li cov tshuaj tiv thaiv thiab tshuaj.

9. Aerospace thiab Automotive Industries:

Manufacturing: Txias ntau yam khoom siv thaum lub sij hawm tsim khoom los xyuas kom meej qhov ntev thiab cov khoom siv.

10. Kev Tso Dej Dej thiab Tub Txias:

Dej Dispensers: Cov dej txias txias hauv cov tshuab xa khoom thiab cov tub yees rau cov tuav, tsev noj mov, thiab cov khw muag khoom yooj yim.

Dej chillers ua lub luag haujlwm tseem ceeb hauv kev tswj xyuas qhov kub thiab txias, txhim kho cov txheej txheem kev ua tau zoo, khaws cov khoom zoo, thiab ua kom muaj kev ua haujlwm zoo ntawm ntau yam khoom siv thiab tshuab thoob plaws cov kev lag luam thiab kev siv ntau yam.

 

 

Tuam Txhab Qhia:

Shen Zhen Anyda tub yees Machinery Co., Ltd. yog lub tuam txhab high-tech ntiav uas tau tsim nyob rau hauv 2013, nrog rau cov peev txheej ntawm 5 lab yuan, npog thaj tsam ntawm 8900 square meters, Anyda maj mam loj hlob mus rau ib kauj ruam.

Anyda yog tshwj xeeb hauv kev tshawb fawb, kev tsim khoom thiab kev lag luam ntawm kev lag luam tub yees tshuab thiab chaw. Peb tau maj mam tsim Industrial Chiller, Dej Chiller, Cua Txias, Roj Chiller, Kub Chillers, Dej Chiller, Kub Twj thiab Central Cua Txias, uas tau dav siv rau cov yas & roj hmab machinery, niaj hnub siv tshuaj, textile, dav siv machinery, laser machinery, LCD thiab PCB kev lag luam, electroplating, equipments ntawm laboratory, zaub mov, khw muag tshuaj, thiab lwm yam.

Tam sim no peb muaj yuav luag ib puas tus neeg ua haujlwm thiab txog tsib ntawm lawv yog engineers nrog 15years ntawm chiller R & D thiab kev tswj kev tsim khoom tsim khoom uas muab kev pabcuam zoo tshaj plaws rau peb cov neeg siv khoom.

Peb tau txais daim ntawv pov thawj ISO9001: 2008 thiab CE thoob ntiaj teb kev tswj hwm kev ua haujlwm zoo. Peb tau xa tawm mus rau Russia, Uzbekistan, Kazakhstan, Saudi Arabia, Africa, Indonesia, Malaysia, Romania, Bulgaria, Australia, Palestine, Sri Lanka, Mexico, Amercia, Lebanon, Lithuania thiab lwm yam, uas them txog USD2millions.Peb tab tom tos ntsoov rau koj lub tswv yim, thiab ntseeg siab los ua koj xaiv!

anyda factory

 

 

FAQ:

Q1: Kuv yuav ua li cas tuav lub tshuab dej chiller?

A1: Kev saib xyuas kom raug yog qhov tseem ceeb los xyuas kom meej qhov kev ua tau zoo thiab kev ua haujlwm ntev ntawm koj lub tshuab dej chiller. Kev saib xyuas tsis tu ncua suav nrog kev tu lossis hloov cov lim cua, tshuaj xyuas cov tub yees qib thiab qhov siab, tshuaj xyuas kev sib txuas hluav taws xob, ntxuav cov condenser coils, lubricating txav qhov chaw, thiab teem caij soj ntsuam kev tshaj lij. Nrog rau cov chaw tsim khoom cov lus qhia thiab phau ntawv saib xyuas kom paub meej cov lus qhia.

 

Q2: Lub tshuab dej chiller feem ntau kav ntev npaum li cas?

A2: Lub neej ntev ntawm lub tshuab ua dej chiller tuaj yeem sib txawv nyob ntawm seb yam xws li kev siv, kev saib xyuas, thiab cov khoom siv zoo. Txawm li cas los xij, nrog kev saib xyuas tsis tu ncua thiab kev saib xyuas kom zoo, lub tshuab ua dej txias tuaj yeem nyob nruab nrab ntawm 15 txog 25 xyoo lossis ntau dua.

 

Q3: Cov dej chillers puas tuaj yeem siv hluav taws xob zoo?

A3: Yog, cov dej chillers muaj peev xwm tsim tau los ua kom muaj zog. Ntau lub tuam txhab muab cov qauv chiller nrog cov yam ntxwv zoo xws li cov tsav tsheb sib txawv, lub zog txuag hluav taws xob, kev xaiv rov ua kom sov, thiab kev tswj xyuas ntse. Cov yam ntxwv no pab txhim kho kev siv hluav taws xob zoo thiab txo cov nqi khiav lag luam.

 

Q4: Cov dej chillers puas tuaj yeem txuas nrog lub hauv paus tswj hwm?

A4: Yog, feem ntau niaj hnub kev lag luam dej chillers tuaj yeem muab tso rau hauv kev tswj hwm hauv nruab nrab. Qhov no tso cai rau kev saib xyuas cov chaw taws teeb thiab tswj ntau lub chillers, ua kom muaj kev tswj xyuas kom zoo dua ntawm cov txheej txheem txias, kev siv hluav taws xob, thiab kev kuaj mob.

 

Q5: HS code ntawm cov dej chiller yog dab tsi?

A5: 8418699090.

 

 

 

 

 

 

 

Cim npe nrov: dej chiller rau dej txias Tuam Tshoj, manufacturers, cog, nqe, kev muag khoom

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