Kev tsim lub laj kab los ntawm cov ntawv profiled: kev teeb tsa thev naus laus zis, cov khoom siv, cov lus qhia kws tshaj lij

Cov txheej txheem:

Kev tsim lub laj kab los ntawm cov ntawv profiled: kev teeb tsa thev naus laus zis, cov khoom siv, cov lus qhia kws tshaj lij
Kev tsim lub laj kab los ntawm cov ntawv profiled: kev teeb tsa thev naus laus zis, cov khoom siv, cov lus qhia kws tshaj lij

Video: Kev tsim lub laj kab los ntawm cov ntawv profiled: kev teeb tsa thev naus laus zis, cov khoom siv, cov lus qhia kws tshaj lij

Video: Kev tsim lub laj kab los ntawm cov ntawv profiled: kev teeb tsa thev naus laus zis, cov khoom siv, cov lus qhia kws tshaj lij
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Hlis ntuj nqeg
Anonim

Lub laj kab hauv thaj tsam suburban ua ob txoj haujlwm tseem ceeb - nws kaw qhov chaw thiab tiv thaiv thaj chaw los ntawm kev nkag mus ntawm cov qhua tsis tau caw. Cov qauv zoo li no tuaj yeem tsim los ntawm cov khoom sib txawv. Tib lub sijhawm, nyob rau hauv ntau qhov xwm txheej, cov nplooj ntawv profiled yog siv los txhim kho lub laj kab.

Ntau zaus, cov qauv zoo li no tau teeb tsa ntawm thaj chaw suburban ntawm racks ua los ntawm cov kav dej square lossis puag ncig. Txawm li cas los xij, ntau tus tswv ntawm lub tsev ntiag tug sau laj kab ntawm cov ncej cib. Kev tsim kho ntawm cov laj kab los ntawm cov nplooj ntawv profiled ntawm cov kev txhawb nqa no yog kim dua ntawm cov kav dej, tab sis tib lub sijhawm, cov qauv zoo li no zoo li ruaj khov thiab, ntxiv rau, tuaj yeem kav ntev dua yam tsis tas yuav kho.

profiled ntawv rau laj kab
profiled ntawv rau laj kab

Xaiv nplooj ntawv

Ntawm kev muag hnub no muaj corrugated board tsim rau vov tsev thiab phab ntsa cladding. Thawj hom khoom yog qhov txawv los ntawm qhov siab nthwv dej loj thiab tus nqi siab heev. Nws yog ntseeg hais tias nws yog tsis pom zoo kom siv xws li ib daim ntawv rau lub laj kab. Txhim kho lub laj kab yuav raug nqikev siv cov khoom siv no yog qhov tsis tsim nyog kim. Siv rau installation ntawm laj kab nyob rau hauv suburban cheeb tsam nyob rau hauv feem ntau, cov phab ntsa pob nyiaj siv. Nws yog nws leej twg yog cov lus teb zoo tshaj plaws rau cov lus nug uas daim ntawv profiled rau lub laj kab ntawm thaj chaw suburban yuav tsum siv.

Cov khoom zoo li no, tig mus, tuaj yeem ua galvanized lossis ntxiv coated nrog txheej txheej polymer. Cov ntawv ntawm thawj hom yog pheej yig dua. Txawm li cas los xij, cov tswv ntawm cov tsev ntiag tug uas xav pom tsis yog tsuas yog ib qho kev ntseeg siab xwb, tab sis kuj yog ib lub laj kab zoo nkauj ntawm qhov chaw yuav tsum xav txog kev xaiv ib daim ntawv profiled nrog cov txheej txheem polymer. Cov khoom zoo li no tuaj yeem muaj ntau yam xim. Ntawd yog, nws yuav tsis yooj yim rau tus tswv ntawm qhov chaw xaiv cov nplooj ntawv uas muaj kev sib haum xeeb, piv txwv li, nrog lub ru tsev lossis facade ntawm lub tsev. Tsis tas li ntawd, lub laj kab zoo li no tuaj yeem siv sijhawm ntev dua li qhov yooj yim galvanized.

bib xaiv

Cov khoom siv ntawm lub khw niaj hnub no kuj tau nthuav tawm hauv cov khoom loj loj. Hauv txoj ntsiab cai, txhua lub cib tuaj yeem xaiv rau kev tsim kho lub laj kab, suav nrog silicate lossis clinker. Feem ntau, txawm li cas los xij, cov kev txhawb nqa ntawm lub laj kab yog tseem ua los ntawm cov qauv liab ceramic pob zeb.

Lub cib no tsis kim heev, lub zog zoo thiab zoo nkauj heev. Rau kev sib dhos ntawm cov ncej txhawb nqa ntawm lub laj kab, feem ntau, cov khoom siv hollow ntawm hom no yog siv. Tom qab tag nrho, cov qauv no dais me me thaum lub sijhawm ua haujlwm.

Yuav ua li cas lwm cov ntaub ntawv yuav tsum

Tau kawg, rau tso ncej thaumKev tsim kho ntawm lub laj kab los ntawm ib daim ntawv profiled, thiab lwm yam, koj yuav xav tau ib lub cement mortar. Tsis tas li ntawd, cov khoom siv no yuav tsim nyog rau kev tsim kho ntawm lub hauv paus ntawm lub laj kab. Nws yog qhov zoo tshaj plaws los siv cov pob zeb sib xyaw ua ke siv M400 cement rau kev teeb tsa ntawm lub laj kab corrugated nyob rau hauv cheeb tsam suburban. Xuab zeb rau nchuav lub hauv paus ntawm lub laj kab yuav tsum xaiv tus dej loj.

Tools

Yuav ua kom lub laj kab corrugated ntawm thaj chaw suburban, koj yuav tsum npaj:

  • -duav thiab bayonet shovels;
  • thoob thiab wheelbarrow;
  • rauj thiab laum;

  • hlua thiab pegs;
  • vuam tshuab;
  • pob zeb tov khoom.

Kuj, txhawm rau txhawm rau laj kab, koj yuav xav tau cov kav dej, hlua thiab lub tsev theem lossis theem.

Tsim lub laj kab los ntawm daim ntawv profiled nrog koj tus kheej tes: theem ntawm kev ua haujlwm

Lub laj kab yog sib sau los ntawm corrugated board, feem ntau raws li cov hauv qab no:

  • cim tau ua rau ntawm qhov chaw;
  • khawb ib lub trench hauv qab lub hauv paus;
  • lub hauv paus ntawm laj kab yog nchuav;
  • ncej cib raug tsa;
  • daim ntawv corrugated yog mounted.

Nws yog, tau kawg, yuav tsum ua raws li txhua yam kev siv thev naus laus zis thaum txhim kho lub laj kab ua los ntawm cov ntawv profiled thiab cib ntawm thaj chaw hauv nroog. Txwv tsis pub, tus tsim yuav dhau los ua luv luv thiab sloppy.

Lub laj kab nyob hauv lub teb chaws
Lub laj kab nyob hauv lub teb chaws

Markup

Lub laj kab kom raug los ntawm daim ntawv profiled yuav tsum yog geometrically txawm. Ntawd yog, ua ntej pib nrog kev tsim kho ntawm lub laj kab, nws yuav tsum tau ua kom raug kos npe.

Rau qhov kev ua haujlwm no koj yuav xav tau ntau tus ntoo pegs, nrog rau cov twine muaj zog. Thaum kos npe, ntxiv rau daim kab xev ntsuas, nws yog ib qho tseem ceeb uas yuav tau siv lub kaum sab xis. Ua ntej, huab pegs raug ntsia rau ntawm qhov chaw. Tsis tas li ntawd, ib txoj hlua txuas ntawm lawv, thiab tsom mus rau nws, qhov chaw nruab nrab ntawm qhov nruab nrab yog tsav mus rau hauv av. Nyob rau theem kawg ntawm kev cim, cov ces kaum raug kuaj xyuas. Ntawm chav kawm, lawv yuav tsum nruj nruj. Tom qab ntawd, ib txoj hlua yog ncab ntawm lub pegs, uas tom qab ntawd yuav tsum tau coj mus rau kev taw qhia thaum khawb trenches.

Nws yog qhov zoo tshaj plaws los siv inelastic twine rau kev kos thaum tsim lub laj kab los ntawm cov ntawv profiled nrog cov ncej cib. Es tsis txhob pegs, piv txwv li, cov hlau qub qub tuaj yeem raug tsav mus rau hauv av. Txawm li cas los xij, cov cim zoo li no yuav tsum tau muab tso rau ntawm qhov chaw ntawm qhov chaw yav tom ntej ntawm cov ncej txhawb nqa.

y

Thaum lub sijhawm ua haujlwm, lub laj kab profiled yuav raug cua daj cua dub heev. Tsis tas li ntawd, cov ncej cib lawv tus kheej hnyav heev. Yog li ntawd, lub hauv paus rau lub laj kab zoo li no yuav tsum ua kom ntseeg tau raws li qhov ua tau.

Lawv tob hauv lub hauv paus thaum tsim laj kab los ntawm ib daim ntawv profiled nrog lawv tus kheej txhais tes, feem ntau mus rau hauv av tsawg kawg yog 30-40 cm. Qhov ntawd yog, qhov tob ntawm trench nyob rau hauv lub hauv paus yuav tsum yog li 55 cm. Nyob rau tib lub sijhawm, qhov dav ntawm cov trench hauv qab lub hauv paus yuav tsum sib npaug ntawm 0.5- 0.8 m.

Thaum cov trenches tau khawb, cov xuab zeb yuav tsum tau nchuav rau hauv qab nrog ib txheej ntawm yam tsawg 15 cm. Cov hauv ncoo yuav ua rau poob siab thaum lub caij nplooj ntoos hlav heaving thiab yuav tsis cia lub hauv paus tawg. vim kev txav. Xuab zeb yuav tsum tau muab tso rau hauv lub trench nyob rau hauv txheej ntawm 5 cm, nchuav txhua tus nrog dej los ntawm tamping hose.

Tsim lub hauv paus

Nyob rau hauv cov trenches khawb hauv qab lub laj kab, cov kauj ruam tom ntej yog los txhim kho lub formwork. Yog hais tias cov av ntawm qhov chaw yog clayey, cov laug cam tsuas tuaj yeem ntsia ntawm ntug mus rau qhov siab ntawm lub hauv paus (txog 20 cm). Yog tias cov trenches tau khawb hauv cov av xoob, cov ntawv ua haujlwm yuav tsum tau nruab rau hauv qab.

Nyob rau theem tom ntej, thaum pouring lub hauv paus, ib tug reinforcing tawb yog mounted nyob rau hauv lub formwork. Thaum siv nws ntawm qhov chaw, nws yuav muaj peev xwm muab lub laj kab los ntawm ib daim ntawv profiled kom ntev li ntev tau. Lub thav duab yuav tsum tau knitted siv 8 hli hlau. Txhawm rau nruab nws rau hauv daim ntawv ua haujlwm cia siab rau 5 cm tuab blocks lossis tshwj xeeb yas txhawb.

Qhov kev txhawb nqa kuj tseem yuav tsum yog tsawg kawg 5 cm ntawm cov vaj huam sib luag sab. Nyob rau ntawm qhov chaw ntawm tus ncej, 3-4 rods yuav tsum tau welded rau lub zog ntawm lub hauv paus rau qhov siab ntawm cov kev txhawb nqa.

Ncuav lub hauv paus ntawm lub laj kab
Ncuav lub hauv paus ntawm lub laj kab

Tom qab qhov kev txhim kho tau txhim kho, koj tuaj yeem mus rau qhov tseeb nchuav ntawm lub hauv paus. Kev sib tov rau cov txheej txheem no thaum lub sij hawm tsim kho lub laj kab los ntawm ib daim ntawv profiled yog pom zoo kom npaj nyob rau hauv ib lub pob zeb tov khoom. Qhov no yuav tso cai rau koj kom tau txais kev ntseeg siab tshaj plaws thiab zoodaws. Thaum nchuav daim kab xev, cov pob zeb yuav tsum tau tho ib ntus nrog lub duav lossis cov pas nrig kom tshem tawm cov npuas.

Thaum kawg, sab saum toj ntawm daim kab xev yuav tsum tau ua tib zoo leveled siv trowel lossis trowel. Txhawm rau txhim kho txoj haujlwm no, koj tuaj yeem siv cov dej me me.

Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws

Feem ntau cov hauv paus rau laj kab hauv qab daim ntawv profiled yuav tsum tau muab nchuav rau ntawm hillocks. Vim qhov loj qhov siab sib txawv nyob rau hauv cov ntaub ntawv no, muaj zog overspending ntawm cov pob zeb sib tov yog ua tau. Txhawm rau zam qhov no, cov hauv paus hauv cov cheeb tsam zoo li no tau nchuav rau hauv cov ntu sib txawv ntawm ntau qib. Xws li lub laj kab ntawm txhua qhov chaw yuav tsum nce siab tshaj hauv av tsawg kawg yog 0.1 m.

Pillar tsev

Koj tuaj yeem pib sib sau laj kab kev txhawb nqa los ntawm corrugated board tsis pub dhau 2 lub lis piam tom qab nchuav lub hauv paus. Qhov hnyav ntawm cov ncej cib yog qhov tseem ceeb. Thiab daim kab xev tsis tau siav nyob rau hauv lawv qhov hnyav tuaj yeem tawg yooj yim.

Cov ncej cib tau txhim kho thaum txhim kho daim ntawv laj kab nyob ib puag ncig rods welded rau tus ncej nrog rau qhov chaw nruab nrab kaw nrog pob zeb. Masonry feem ntau yog ib thiab ib nrab cib. Es tsis txhob ntxiv cov tuav, nws kuj tau tso cai siv cov kav dej square lossis puag ncig ua cov ncej rau cov ncej. Ua ntej pib nteg nyob rau hauv tag nrho cov cheeb tsam ntawm cov kev txhawb nqa, cov khoom ntawm cov vov tsev yuav tsum muab tso rau ntawm lub hauv paus daim kab xev. Nyob rau hauv rooj plaub no, nws yog qhov zoo tshaj los ua waterproofing nyob rau hauv ob txheej.

Nws tsim nyog txhim kho lub laj kab txhawb maj mam, nce qib txhua kab. Cib yuav tsum tau muab tso rau sivcoj pas nrig los yog rail. Kev siv cov cuab yeej zoo li no yuav ua rau cov pob zeb ua kom zoo.

Cov lus qhia rau lub tsev ncej

Qhov siab ntawm lub cib txhawb nqa ntawm corrugated laj kab tuaj yeem sib txawv. Tab sis nyob rau hauv txhua rooj plaub, nyob rau hauv ib hnub, thaum lub sij hawm lawv installation, nws yog tsim nyog los nteg tawm tsis ntau tshaj 50 cm. Nyob rau tib lub sij hawm, nws yog tsim nyog los tso tus ncej thaum lub sij hawm tsim kho ntawm ib tug laj kab nyob rau hauv increments ntawm ntau tshaj 3. m. Txwv tsis pub, cov nplooj ntawv ntawm corrugated board tom qab yuav pib sag nyob rau hauv cov cua muaj zog.

Txhua kab thib ob ntawm masonry txhawb nqa thaum lub sij hawm tsim kho lub laj kab los ntawm ib daim ntawv profiled yuav tsum tau ntxiv dag zog rau cov hlau mesh. Kev daws rau kev txhim kho laj kab ncej feem ntau yog kneaded hauv cov cement / xuab zeb piv - 1/3. Cov kws tshaj lij pom zoo kom ntxiv me ntsis kua xab npum rau nws thaum npaj cov pob zeb sib tov rau masonry. Qhov no yuav ua rau cov tshuaj yas ntau dua. Raws li qhov tshwm sim, nws yuav yooj yim dua rau kev ua haujlwm nrog nws, thiab yog li ntawd, lub masonry yuav tig tawm kom raug raws li qhov ua tau.

Ib qho ntawm cov yam ntxwv ntawm kev tsim kho ntawm cov ntawv laj kab laj kab yog kev siv lub kaus mom tshwj xeeb rau kev txhawb nqa. Xws li cov ntsiab lus yog mounted ob peb hnub tom qab erection ntawm tus ncej. Nrog cov cuab yeej zoo li no, lub laj kab yuav kav ntev dua yav tom ntej. Tsis tas li ntawd, nws yuav zoo dua nyob rau ntawm qhov chaw.

Txhim kho lub kaus mom

Cov kaus mom tiv thaiv rau cov ncej hauv kev tsim kho ntawm corrugated board thiab cib laj kab tuaj yeem yuav los ntawm txhua tus neeg muag khoom hauv zos ntawm cov khoom ua vaj tse. Cov hau no muaj nyob hauv cov xim sib txawv. Thiab yog li ntawd, thaum xaiv lawv, ntawm chav kawm, nws yog ib qho tseem ceeb kom coj mus rau hauv tus account qhov ntxoov ntxoo ntawm corrugated nplooj lawv tus kheej. Cov kaus mom pob zeb yog ntsia rau ntawm lub laj kab kev txhawb nqa siv cov cement mortar.

Cement sib tov lub kaus mom ntawm lub laj kab tuaj yeem, tau kawg, kav ntev li ntev tau. Txawm li cas los xij, cov khoom no kim heev. Txhawm rau txo tus nqi ntawm kev tsim lub laj kab, pheej yig dua steel npog tuaj yeem siv los tiv thaiv nws cov ncej. Cov ntsiab lus ntawm no ntau yam yog txuas nrog kev txhawb nqa nrog dowels hauv qab no, ncaj qha mus rau cib.

Lub laj kab ntawm cov ncej cib
Lub laj kab ntawm cov ncej cib

Lub kaus mom hlau rau laj kab hauv thaj chaw suburban feem ntau yog xaiv kom haum rau cov xim ntawm cov corrugated board.

Ntseeg lub trim

Tom qab lub laj kab txhawb nqa hauv qab daim ntawv profiled tau txhim tsa, koj tuaj yeem txuas ntxiv nrog kev teeb tsa ntawm cov khoom siv sheathing nws tus kheej. Rau nws fastening, kab rov tav steel lintels yog pre-mounted ntawm lub cib kev txhawb nqa. Cov khoom no tuaj yeem kho tau rau cov ncej, piv txwv li, siv cov hlau embedded. Cov ntsiab lus zoo li no tau muab tso rau hauv cov ncej ntawm lub masonry theem.

Kev teeb tsa ntawm cov nplooj ntawv profiled lawv tus kheej yog ua los ntawm cov hlau rivets 3.2x10 mm thiab galvanized self-tapping screws 5x30 mm. Nws raug nquahu kom npog lub hauv paus ua ntej txhim kho daim ntawv profiled nrog cardboard. Qhov no yuav tiv thaiv kev puas tsuaj rau cov txheej txheem polymer ntawm cov khoom ntawm cov npoo pob zeb. Thaum siv galvanized corrugated board, cov kauj ruam no tuaj yeem hla. Cov ntawv txuas nrog rau cov hlaws uas siv cov roj hmab tshwj xeeb.

Thaum txhim kho corrugated board, ua ib qho me me sib tshooj ntawm cov khoom siv sheathing - tsawg kawg yog 1 yoj. Kev sib txuas yog tsim los siv cov rivets tshwj xeeb. Rau crossbeamsCov nplooj ntawv tau txuas nrog txoj hauv kev uas muaj tsawg kawg yog rau tus kheej tapping screws ib 'meter' ntawm lawv qhov ntev.

Qee lub sij hawm nws tshwm sim thaum lub sij hawm teeb tsa ntawm cov ntawv txheeb, cov txheej txheem tiv thaiv polymer puas lawm hauv qee qhov chaw. Yog li ntawd lub corrugated board tsis tom qab pib xeb thiab deform, xws li cov chaw ntawm theem kawg yuav tsum tau pleev xim rau nrog qee yam kev tiv thaiv corrosion enamel npaj rau siv sab nraum zoov.

Tus nqi npaum li cas los txhim kho lub laj kab

Cov tswv ntawm ib cheeb tsam suburban yuav tau siv nyiaj rau lub laj kab zoo ua los ntawm corrugated board nrog cib kev txhawb nqa heev. Cov qauv zoo li no tau txhim kho sai heev. Cov kws tshaj lij feem ntau nruab 15 m ntawm lub laj kab zoo li no hauv ob peb lub lis piam. Ib lub laj kab ntawm hom no yuav raug nqi rau cov tswv ntawm thaj chaw suburban kom huv si. cuaj meters ntawm lub laj kab uas muaj rau tus ncej txhawb nqa feem ntau raug nqi txog 50 txhiab rubles.

Plinth hauv ob sab

Nruab laj kab los ntawm ib daim ntawv profiled ntawm thaj chaw suburban, yog li koj tuaj yeem ua koj tus kheej. Designs ntawm hom no zoo heev thiab zoo huv si. Tab sis ua kom lub laj kab zoo li no ntau dua thiab "nplua nuj", koj tuaj yeem kho qhov chaw ntawm nws lub hauv paus protruding saum av.

Kom tiav lub hauv paus ntawm lub laj kab, feem ntau, pob zeb siv, ntuj lossis dag. Yog hais tias cov ncej tau ua los ntawm cov cib, nws yog qhov zoo tshaj plaws los siv tib yam khoom los kho lub qab daus. Qee lub sij hawm lub hauv paus ntawm cov laj kab no kuj tsuas yog plastered thiab pleev xim rau.

laj kab zoo nkauj
laj kab zoo nkauj

Ib yam yooj yim ntawm laj kab

Lub laj kab ua los ntawm corrugated board nrog cib kev txhawb nqa yog kim heev. Nws tseem tsim nyog xav txog qhov tseeb tias kev siv tshuab ntawm lawv cov kev tsim kho tuaj yeem suav tias yog txoj hauv kev. Tom qab tag nrho, tsis yog txhua tus tswv ntawm ib cheeb tsam suburban muaj kev txawj ntse ntawm bricklayer. Kev txiav txim siab kev tsim kho ntawm lub laj kab los ntawm daim ntawv turnkey profiled hauv qee lub tuam txhab yog kev lag luam kim heev. Nyob rau hauv cov ntaub ntawv no, tus tswv ntawm lub site yuav tau them tsis tau tsuas yog rau cov ntaub ntawv, tab sis kuj rau cov hauj lwm ntawm cov kws tshwj xeeb.

Kev kwv yees rau kev tsim lub laj kab los ntawm cov ntawv profiled tau muab tso ua ke nyob ntawm nws qhov ntev. Thiab 9 meters ntawm qhov tsim, raws li twb tau hais lawm, tuaj yeem raug nqi txog 50 txhiab rubles.

Tau kawg, cov laj kab profiled nrog cov cib txhawb nqa tuaj yeem ua haujlwm ncaj ncees rau ntau xyoo. Tab sis feem ntau, cov tswv ntawm cov cheeb tsam suburban tseem nyiam tsim laj kab los ntawm cov nplooj ntawv profiled ntawm kev txhawb nqa los ntawm cov kav dej. Cov qauv zoo li no feem ntau pheej yig dua li cov cib.

Nyob rau hauv rooj plaub no, lub hauv paus feem ntau tsis txawm nchuav rau hauv qab laj kab. Thaum sib sau ua ke xws li cov qauv, kev kos npe kuj yog thawj zaug uas qhia txog qhov chaw ntawm cov ncej. Tom qab ntawd, nrog kev pab los ntawm ib tug laum, pits yog ua nyob rau hauv lub hauv av nrog ib tug tob ntawm 60-70 cm, crushed pob zeb yog poured rau hauv qab ntawm lub pits, tom qab uas ncej yog ntsia rau hauv lawv thiab concreted. Txhawm rau kom cov kev txhawb nqa kom ntev li ntev tau thiab ruaj khov, cov ntawv square hlau tuab tuaj yeem ua ntej welded rau lawv cov ntug qis.

Kab rov tav jumpers nyob rau hauv daim ntawv profiled hauv cov laj kab no feem ntau yog siv lub tshuab vuam. Cov nplooj ntawv lawv tus kheej raug txuas rau lawv siv cov cuab yeej siv tib yam li nrogtxhim tsa lub laj kab nrog cov ncej cib.

Profiled laj kab
Profiled laj kab

Txhim rooj vag thiab rooj vag

Cov ntsiab lus no yog qhov yuav tsum tau ua ntawm ib lub laj kab, suav nrog cov khoom sib dhos los ntawm cov ntawv profiled. Lub rooj vag thiab rooj vag rau lub laj kab no feem ntau yog ua los ntawm cov khoom siv tib yam. Tib lub sijhawm:

  • weld sash thav ntawv los ntawm cov yeeb nkab lossis kaum;
  • ntxiv dag zog rau lawv nrog kab pheeb ces kaum lossis transverse jumpers;
  • seathe sashes nrog profiled sheets.
Rooj vag laj kab los ntawm corrugated board
Rooj vag laj kab los ntawm corrugated board

Nyob rau theem kawg, cov qauv sib sau ua ke hauv txoj kev no tau dai rau hauv qhov qhib sab laug rau lawv hauv lub laj kab. Tom qab ntawd cov locks thiab latches raug txiav rau hauv sashes.

Pom zoo: