4 Txoj hauv kev los Pib Ua Lag Luam Hlau

Cov txheej txheem:

4 Txoj hauv kev los Pib Ua Lag Luam Hlau
4 Txoj hauv kev los Pib Ua Lag Luam Hlau
Anonim

Kev siv cov hlau rov qab thiab muab pov tseg yog cov lag luam muaj txiaj ntsig rau ntau tus, tshwj xeeb tshaj yog nyob rau lub sijhawm nyuaj ntawm kev lag luam. Thaum nws yog txoj haujlwm qias neeg thiab muaj peev xwm txaus ntshai, tus nqi hlau siab tuaj yeem txiav txim siab cov nyiaj rov qab loj. Kev lag luam scrapping tuaj yeem ua kom tau nyiaj hauv ob txoj hauv kev tseem ceeb: Qee tus neeg yuav them koj kom nqa cov khoom pov tseg uas koj tuaj yeem tsoo thiab muag rau cov neeg yuav khoom. Nrhiav seb yuav pib ua lag luam hlau li cas los txiav txim siab seb nws puas tuaj yeem yog kev nqis peev zoo ntawm lub sijhawm thiab peev txheej.

Cov kauj ruam

Txoj Kev 1 ntawm 4: Kawm Kev Lag Luam

Pib Ib Qho Hlau Lag Luam Kauj Ruam 1
Pib Ib Qho Hlau Lag Luam Kauj Ruam 1

Kauj Ruam 1. Muaj peev xwm txheeb xyuas thiab txheeb cov hlau sib txawv

Cov neeg yuav khoom yuav yuav cov hlau tshwj xeeb los ntawm phaus. Koj yuav tsum txheeb xyuas kom raug koj cov khoom seem rau kev muag. Txhawm rau ua qhov no, thawj zaug siv cov hlau nplaum txhawm rau txheeb xyuas cov hlau ferromagnetism (seb puas yog lossis tsis yog cov hlau nplaum txuas). Ntsuas cov ntaub ntawv no nrog cov hlau qhov tsos, qhov hnyav, thiab cov khoom keeb kwm. Muaj tsib qhov loj ntawm cov hlau uas yuav ua rau feem ntau ntawm koj cov khoom seem.

  • Hlau thiab nws cov hlau hlau muaj ntau yam siv thiab tej zaum yuav yog cov hlau uas koj siv tshaj plaws. Hlau yog ferromagnetic, muaj zog, thiab sib zog dua li lwm yam hlau tshwj tsis yog rau txhuas. Thaum ib txwm sib txawv ntxoov txho, nws xeb mus rau xim av liab.
  • Aluminium tsis yog-ferromagnetic thiab lub teeb heev. Zoo li hlau, nws yog nyob txhua qhov chaw.
  • Cov tooj liab ntshiab yog xim liab me ntsis, thaum qib qis dua yog xim av daj. Nws tarnishes rau hauv cov xim ntsuab jade. Tooj liab tsis yog hlau nplaum thiab hnyav dua li hlau. Koj yuav pom tooj liab hauv cov xov hlau thiab cov tais diav zoo.
  • Cov tooj liab yog cov hlau tooj liab tab sis muaj nqis tsawg dua. Nws yog qhov sib dua, yuav luag xim kub. Nws feem ntau pom muaj nyob hauv cov twj paj nruag, kho kom zoo nkauj, thiab cov yeeb nkab li qub.
  • Lead yog qhov muag heev thiab hnyav. Nws feem ntau yog siv los ua mos txwv thiab raws li kev tiv thaiv hluav taws xob. Nco ntsoov tias txhuas yog tshuaj lom heev, yog li siv kev tiv thaiv thaum tuav txhua yam uas koj xav tias yuav tsum muaj.
  • Nco ntsoov tias hauv cov pawg yooj yim no tseem muaj ntau qib sib txawv nrog lawv tus kheej lub zog. Piv txwv li, feem ntau cov hlau tsis muaj hlau tsis yog hlau nplaum. Ib qho ntxiv, koj yuav zaum hla cov hlau uas tsis tshua muaj txiaj ntsig yog tias koj khawb cov khoom siv hluav taws xob. Kawm cov no ua ntej pib koj lub lag luam.
Pib Cov Khoom Hlau Hlau Kauj Ruam 2
Pib Cov Khoom Hlau Hlau Kauj Ruam 2

Kauj Ruam 2. Kawm paub cais cov khoom rau seem

Txhawm rau txheeb koj cov seem, koj yuav zoo li yuav tsum tsoo cov khoom loj rau hauv cov khoom me me. Qee yam khoom tuaj yeem sib cais tau yooj yim nrog cov cuab yeej yooj yim, thaum lwm tus yuav xav tau lub tshuab taws teeb lossis cov hlau pom. Yam khoom yuav txiav txim siab raws nraim cov kauj ruam uas koj yuav tsum tau ua. Saib cov ntaub ntawv online ua ntej muab qee yam uas koj tsis tau ua haujlwm ua ntej.

Txawm hais tias ntau tus neeg yuav khoom yuav xaim raws li yog, qee tus scrappers xaiv los hle nws tus kheej kom tau txais tus nqi tooj liab tag nrho. Txheeb xyuas yog qhov sib txawv ntawm tus nqi ntau dua li tus nqi ntawm koj lub sijhawm thiab kev ua haujlwm. Kev xaim hluav taws xob tuaj yeem tsim nyog thaum koj tab tom pib ua lag luam thawj zaug, tab sis tsis tseem ceeb dua tom qab

Pib Ib Qho Hlau Lag Luam Kauj Ruam 3
Pib Ib Qho Hlau Lag Luam Kauj Ruam 3

Kauj Ruam 3. Khaws cov nqi hlau

Txheeb xyuas tus nqi hlau tas li kom paub txog dab tsi yuav tsum them thiab yuav them dab tsi rau seem. Txhawm rau ua qhov no, tsuas yog siv Is Taws Nem txhawm rau tshawb nrhiav "tus nqi lag luam khoom lag luam." Nco ntsoov nug cov neeg hauv zos yog tias thaj chaw koj muag ntawm tus nqi sib txawv. Nws yuav yog lub tswv yim zoo los muab tus nqi ruaj khov thaum yuav khoom seem thaum nug cov neeg yuav khoom ze rau tus nqi lag luam thaum muag. Cov qhab nia

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Txoj Kev 1 Xeem

Thaum ua haujlwm nrog txhuas tshwj xeeb, nws yog ib qho tseem ceeb kom nco ntsoov:

Siv cov hlau nplaum

Tsis yog raws nraim! Koj yuav xav tshuaj xyuas ferromagnetism ntawm txhua cov hlau uas koj sau ua ib txoj hauv kev los txheeb xyuas nws, tsis yog tsuas yog coj. Muaj qee yam tshwj xeeb kom nco qab thaum koj ua haujlwm nrog txhuas. Kwv yees dua!

Tias nws yog qhov sib zog ntau dua li lwm yam hlau

Tsis yog! Ntawm cov hlau uas koj yuav ua haujlwm nrog, txhuas yog qhov hnyav tshaj. Nws yog mos heev heev, thiab feem ntau siv los ua tej yam zoo li cov mos txwv. Muaj qhov kev xaiv zoo dua nyob ntawd!

Tias tus nqi hloov pauv

Sim dua! Tsis muaj teeb meem dab tsi ntawm cov hlau uas koj tab tom ua haujlwm nrog, koj xav kom nyob ntawm tus nqi lag luam thiab tus nqi. Qhov no yuav pab koj kom ntseeg tau tias koj tau txais cov kev pom zoo tshaj plaws. Tseem, muaj qee yam tshwj xeeb kom nco ntsoov txog txhuas. Xaiv lwm cov lus teb!

Yuav tsum hnav hnab looj tes tas li

Kiag! Cov hlau lead yog tshuaj lom heev, yog li yog tias xav tias ib daim hlau muaj hlau lead, tuav koj lub hnab looj tes thiab daim npog ntsej muag. Ib txwm zoo dua kom muaj kev nyab xeeb dua li thov txim! Nyeem rau lwm qhov lus nug xeem ntawv.

Xav tau cov lus nug ntxiv?

Kuaj koj tus kheej!

Txoj Kev 2 ntawm 4: Teeb

Pib Ib Qho Hlau Lag Luam Kauj Ruam 4
Pib Ib Qho Hlau Lag Luam Kauj Ruam 4

Kauj Ruam 1. Yuav lossis xauj tsheb rau koj lub lag luam

Xaiv lub tsheb thauj khoom lossis lub tsheb uas loj txaus los thauj cov hlau loj. Yog tias koj txoj kev lag luam tsom mus rau scrapping cov khoom lag luam me me me me, koj tuaj yeem siv tus kheej lub tsheb hloov chaw.

  • Tiv thaiv sab hauv ntawm koj lub tsheb los ntawm kev puas tsuaj lossis ua kom puas.
  • Yog tias xauj tsev, xyuas kom lub tuam txhab xauj tso cai rau siv lub tsheb.
  • Txiav cov nqi khiav lag luam los ntawm kev xaiv lub tsheb nrog kev siv roj zoo.
Pib Ib Qho Hlau Lag Luam Kauj Ruam 5
Pib Ib Qho Hlau Lag Luam Kauj Ruam 5

Kauj Ruam 2. Teeb thaj tsam rau koj cov seem

Koj yuav xav tau qhov chaw los txheeb, tshem tawm, thiab khaws koj cov hlau seem. Nyob ntawm seb ntau npaum li cas thiab hom khoom twg uas koj npaj yuav sau, qhov no tuaj yeem me me li chav cia khoom lossis lub tsheb thauj khoom. Yog tias koj xav tau thaj chaw loj, koj yuav tsum xauj lossis yuav qhov chaw qhib. Ob qhov chaw yuav tsum muaj kev nyab xeeb los tiv thaiv tub sab thiab muaj peev xwm ua tau thaum muaj kev raug mob ua txhaum cai.

Pib Ib Qho Hlau Lag Luam Kauj Ruam 6
Pib Ib Qho Hlau Lag Luam Kauj Ruam 6

Kauj Ruam 3. nqis peev hauv kev tiv thaiv iav

Kev daws nrog cov hlau hlau tuaj yeem ua rau muaj kev phom sij thiab tuaj yeem ua rau koj raug txiav, tetanus, tsis pom kev raug mob los ntawm cov khoom poob, thiab txawm tias muaj peev xwm ua rau hluav taws xob lossis lwm yam phom sij txaus ntshai.

  • Hardhats yuav tsum tau hnav thaum nqa cov khoom loj lossis thaum nyob ze cov hlau sib tsoo.
  • Hnav cov hnab looj tes tiv thaiv tuab thiab khau thaum ua haujlwm nrog seem.
  • Lub tshuab nqus pa yog qhov tsim nyog yog tias muaj cov khoom phom sij, xws li asbestos, tuaj yeem tshwm sim.
  • Hnav cov iav tsom iav thaum txiav cov hlau.

Cov qhab nia

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Txoj Kev 2 Xeem

Yog tias koj xauj koj lub tsheb, nws tseem ceeb heev rau:

Xyuas kom nws ruaj ntseg.

Tsis yog raws nraim! Yog tias koj tab tom xaum chaw lossis vaj, koj yuav tsum xav kom ruaj ntseg tiv thaiv kev nyiag lossis kev lav phib xaub. Yog tias koj xauj tsheb, muaj lwm yam uas yuav tsum nco ntsoov. Nyem rau lwm cov lus teb kom pom qhov raug …

Nco ntsoov siv kev lag luam raug tso cai.

Yog lawm! Thaum koj tab tom pib ua ntej, koj yuav xav xauj tsheb, tsis txhob yuav ib lub tsheb. Tseem, koj xav kom paub tseeb tias lub tsheb tuaj yeem siv rau lub hom phiaj kev lag luam ua ntej, yog li koj tsis muaj kev nyuaj siab nrog tus nqi ntxiv thaum kawg ntawm lub sijhawm xauj tsev. Nyeem rau lwm qhov lus nug xeem ntawv.

Xyuas kom tseeb tias nws yog load bearing.

Tsis tas yuav! Lub peev xwm hnyav ntawm koj lub tsheb yuav tsum cuam tshuam txog yam koj tab tom nqa. Yog tias koj tab tom thauj cov hlau hnyav thiab daim loj, tom qab ntawd xyuas kom koj lub tshuab tuaj yeem lis nws. Yog tias koj tsom mus rau thev naus laus zis ntau dua, koj tsis tas yuav txhawj ntau. Nyem rau lwm cov lus teb kom pom qhov raug …

Nco ntsoov nws tau ntxuav ntau zaus.

Tsis yog! Tau kawg, ntxuav lub tsheb feem ntau tsis yog lub tswv yim phem. Txawm li cas los xij, nws zoo dua los tiv thaiv thiab nteg cov ntaub pua plag lossis ntaub ntawv txhawm rau txhawm rau ua kom lub tsheb zoo li qub uas koj pom nws, txawm koj yuav nqa dab tsi. Xaiv lwm lo lus teb!

Xav tau cov lus nug ntxiv?

Kuaj koj tus kheej!

Txoj Kev 3 ntawm 4: Saib Xyuas Cov Teeb Meem Raws Cai

Pib Ib Qho Hlau Lag Luam Kauj Ruam 7
Pib Ib Qho Hlau Lag Luam Kauj Ruam 7

Kauj Ruam 1. Tau txais kev pov hwm them nqi kho mob rau koj lub tsheb thiab khoom vaj khoom tsev

Yog tias koj muaj lub xaib uas tau qhib rau pej xeem, koj yuav tsum tau npog cov teeb meem kev lav phib xaub. Yam tsawg kawg, kom cov neeg siv kos npe zam kev zam ua ntej nkag mus rau qhov chaw. Muaj ntawv pov hwm tseem yuav pab koj kom rov them cov nqi thaum raug nyiag lossis raug xwm txheej ntuj.

Pib Ib Qho Hlau Lag Luam Kauj Ruam 8
Pib Ib Qho Hlau Lag Luam Kauj Ruam 8

Kauj Ruam 2. Khaws cov ntaub ntawv raug tseeb ntawm txhua qhov kev siv lag luam thiab nyiaj tau los

Thaum lub tebchaws sib txawv thiab thaj chaw muaj cov cai se sib txawv, qhov xav tau cov ntaub ntawv raug yog thoob ntiaj teb.

Yog tias koj nyob hauv Asmeskas, koj yuav tsum ua daim ntawv IRS 1099 Form txhua xyoo raws li ib feem ntawm koj cov se ua se. Tshaj tawm txhua qhov kev muag khoom tau ua. Nco ntsoov thov txiav tawm cov nuj nqis lag luam kom txo koj cov nyiaj se. Siv Internal Revenue Service Cov Nyiaj Txiag Ua Lag Luam Ua Lag Luam Ntsuam Xyuas Cov Txheej Txheem Ntsuas raws li kev siv. Cov ntawv no muaj pub dawb rau ntawm lawv lub vev xaib raug cai

Pib Ib Qho Hlau Lag Luam Kauj Ruam 9
Pib Ib Qho Hlau Lag Luam Kauj Ruam 9

Kauj Ruam 3. Tham nrog koj lub nroog lossis nroog txog cov ntawv tso cai tsim nyog thiab ntawv tso cai

Ntau lub nroog hauv nroog xav kom cov khoom lag luam seem hlau tau txais daim ntawv tso cai tsim nyog lossis ntawv tso cai. Yog tias koj khiav lub tsev seem lossis lwm thaj chaw uas tau qhib rau pej xeem, koj yuav tsum tau daws cov teeb meem zoning xws li tsheb, chaw nres tsheb, thiab kev nyab xeeb. Vim li no, koj yuav tsum tau ua kom pom koj li kev nyab xeeb, qhia pov thawj ntawm kev pov hwm, them tus nqi thiab/lossis qhia koj qhov kev paub txog kev cai lij choj hauv nroog.

Pib Ib Qho Hlau Lag Luam Kauj Ruam 10
Pib Ib Qho Hlau Lag Luam Kauj Ruam 10

Kauj Ruam 4. Tham nrog tus kws lij choj

Tham nrog tus kws tshaj lij ntawm kev tshem tawm lossis cov lag luam zoo sib xws kom ntseeg tau tias koj tau them txhua yam. Nug txog ib qho se, ntawv tso cai, lossis teeb meem kev nyab xeeb ntawm kev ua haujlwm uas koj yuav xav tau los daws.

Yog tias koj nyob hauv Tebchaws Meskas thiab muaj tsawg kawg ib tus neeg ua haujlwm, koj lub lag luam yuav tsum ua raws li cov qauv tau teev tseg los ntawm Kev Nyab Xeeb Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv (OSHA). Nyeem cov tseev kom muaj ntawm OSHA lub vev xaib ua ntej ntiav kom ntseeg tau tias koj muaj chaw ua haujlwm nyab xeeb

Cov qhab nia

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Txoj Kev 3 Xeem

Thaum koj npaj txhij ntiav ib tus neeg ua haujlwm, koj yuav tsum yog:

Tau txais nyiaj pov hwm rau koj lub tsev thiab tsheb.

Tsis yog! Kev pov hwm yog ib qho tseem ceeb heev. Nws yuav tiv thaiv koj lub tuam txhab tiv thaiv kev lav phib xaub, tub sab tub nyiag, thiab kev puas tsuaj ntuj tsim. Txawm li cas los xij, koj xav tau kev pov hwm kev noj qab haus huv seb koj puas ntiav ib tus neeg ua haujlwm. Sim dua …

Ua kom tiav cov ntaub ntawv tsim nyog rau lub nroog.

Kaw! Koj yuav xav paub tseeb tias koj lub tuam txhab ua raws txoj cai hauv nroog thiab txoj cai, txwv tsis pub, koj yuav raug nplua lossis raug kaw. Tseem, koj xav ua qhov no txawm hais tias koj ntiav ib tus neeg ua haujlwm. Muaj qhov kev xaiv zoo dua nyob ntawd!

Ua raws li OSHA tus qauv.

Kiag! OSHA, lossis Kev Tswj Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv, muaj txheej txheem teeb tsa rau ib puag ncig ua haujlwm. Ua ntej koj tuaj yeem nqa txawm tias ib tus neeg ua haujlwm, koj yuav tsum ua tau raws cov qauv no. Nyeem rau lwm qhov lus nug xeem ntawv.

Khaws cov ntaub ntawv ua se raug.

Yuav luag! Tsis muaj teeb meem dab tsi ntawm kev lag luam uas koj ua, koj xav khaws cov ntaub ntawv ua se raug, suav nrog kev siv lag luam thiab cov nyiaj tau los. Koj yuav tsum ua qhov no txawm hais tias koj muaj neeg ua haujlwm lossis tsis yog. Sim dua …

Xav tau cov lus nug ntxiv?

Kuaj koj tus kheej!

Txoj Kev 4 ntawm 4: Khiav Koj Lub Lag Luam

Pib Ib Qhov Chaw Lag Luam Hlau Kauj Ruam 11
Pib Ib Qhov Chaw Lag Luam Hlau Kauj Ruam 11

Kauj Ruam 1. Ntiav ib tus neeg ua haujlwm lossis nrhiav tus tswv lag luam

Txawm hais tias koj muaj zog thiab muaj lub cev zoo, feem ntau cov khoom seem yog tsawg kawg yog ob tus neeg ua haujlwm. Xam tawm cov nyiaj hli ncaj ncees rau ib tus neeg ua haujlwm lossis koom nrog cov txiaj ntsig nrog tus khub.

Yog tias koj txoj kev lag luam tsom mus rau cov khoom tswj tau ntau dua, xws li cov xov hlau thiab cov khoom siv hluav taws xob, koj tuaj yeem pib tawm ntawm koj tus kheej

Pib Ib Qho Hlau Kev Lag Luam Kauj Ruam 12
Pib Ib Qho Hlau Kev Lag Luam Kauj Ruam 12

Kauj Ruam 2. Pib npaj los sau cov seem

Cov peev txheej tseem ceeb suav nrog cov lag luam uas siv thiab pov tseg cov hlau thiab cov tswv tsev pov tseg cov khoom hnyav xws li tub yees thiab lub tshuab txias. Koj kuj tseem tuaj yeem xaiv yuav tsheb siv los ntawm cov nqi seem.

Kev sib pauv lag luam uas los ntawm kev tau txais koj cov khoom seem yuav txawv. Ntau qhov chaw lag luam yuav xav tau kev them nyiaj los ntawm koj. Txawm li cas los xij, yog tias koj tshaj tawm cov khoom lag luam tsis zoo rau cov neeg siv khoom, koj tuaj yeem tau txais cov khoom seem dawb lossis txawm tias them nqi rau koj cov kev pabcuam

Pib Ib Qho Hlau Lag Luam Kauj Ruam 13
Pib Ib Qho Hlau Lag Luam Kauj Ruam 13

Kauj Ruam 3. Tshaj tawm koj lub lag luam tshiab

Nqa tawm cov ntawv tshaj tawm hauv koj cov ntawv xov xwm hauv cheeb tsam, tshaj tawm koj lub lag luam ntawm cov rooj sib tham online, thiab daim ntawv tshaj tawm qhov rooj mus rau qhov rooj. Qhia rau koj cov neeg nyob ze paub tias koj tab tom pib ua cov hlau seem thiab thov kom lawv xa cov hlau uas tau pov tseg koj txoj hauv kev.

Pib Ib Qhov Chaw Lag Luam Hlau Kauj Ruam 14
Pib Ib Qhov Chaw Lag Luam Hlau Kauj Ruam 14

Kauj Ruam 4. Nrhiav cov neeg yuav khoom rau koj cov hlau seem

Ib qhov chaw me me hauv vaj hauv tsev loj dua lossis qhov chaw rov ua dua tshiab yog qee qhov kev xaiv. Koj tseem tuaj yeem tshaj tawm cov hlau seem uas koj muaj muag. Yog tias koj txiav txim siab pib ua vaj tsev seem, nws tuaj yeem qhib rau pej xeem nyob rau qee lub sijhawm rau cov neeg siv khoom tuaj nrhiav thiab yuav.

Pib Ib Qho Hlau Lag Luam Kauj Ruam 15
Pib Ib Qho Hlau Lag Luam Kauj Ruam 15

Kauj Ruam 5. Ua haujlwm raws sijhawm

Txhim kho qhov ua tau zoo ntawm koj lub lag luam los ntawm kev npaj koj lub sijhawm. Teem tseg cov hnub sib txawv kom tau txais seem, txheeb thiab tshem tawm cov hlau, thiab xa mus rau cov neeg yuav khoom. Khaws ntawm nws kom ntseeg tau tias koj txoj haujlwm ua haujlwm tau zoo. Yog tias koj tsis quav ntsej ib qho ntawm peb txoj haujlwm no, txoj haujlwm tuaj yeem txhim kho thiab ua lwm yam ob yam ua tsis tau. Cov qhab nia

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Txoj Kev 4 Xeem

Muaj tseeb lossis Tsis raug: Koj tsis tuaj yeem them tus nqi tshem tawm rau tib neeg.

Tseeb

Tsis yog raws nraim! Cov peev txheej lag luam feem ntau yuav yuav them koj rau seem, tab sis muaj ntau txoj hauv kev kom pom nws dawb. Yog tias ib tus neeg tsuas yog xav kom tshem cov khoom qub, tsis muaj ib yam dab tsi los txwv koj los ntawm them lawv kom tshem nws! Xaiv lwm lo lus teb!

Cuav

Yog lawm! Tej zaum koj yuav tsum tau them nyiaj seem thaum tau txais los ntawm cov chaw lag luam, tab sis ntau tus neeg tsuas yog xav kom tshem ntawm lawv! Tej zaum lawv tseem yuav kam them koj kom tshem nws mus, thiab tsis muaj ib yam tsis raug kiag li! Nco ntsoov kom muaj daim ntawv qhia nqi rau thaum lub sijhawm tshwm sim. Nyeem rau lwm qhov lus nug xeem ntawv.

Xav tau cov lus nug ntxiv?

Kuaj koj tus kheej!

Lub tswv yim

  • Txuag roj los ntawm kev npaj tawm ib txoj hauv kev pov tseg tsis txhob tsoo cov chaw ib leeg zuj zus.
  • Tsis txhob pib ua cov khoom lag luam hlau yog tias koj lub khw hauv cheeb tsam twb tau ntim nrog lwm cov neeg cawm siav.
  • Nco ntsoov tias koj muaj peev los npog cov nqi pib thiab tuaj yeem ua lub nra hnyav yog tias koj lub lag luam tsis ua tiav. Tus nqi pib pib nruab nrab rau cov khoom lag luam seem hlau tshiab los ntawm $ 2000 txog $ 10000. Nco ntsoov tias koj tseem tab tom nqis peev koj lub sijhawm thiab cov peev nyiaj tau los.

Pom zoo: