Galvanized kav dej yog cov kav hlau uas tau dipped rau hauv cov zinc txheej tiv thaiv kom tsis txhob xeb thiab xeb. Galvanized piping feem ntau ntsia hauv tsev ua ntej xyoo 1960. Thaum nws tau tsim, galvanized yeeb nkab yog lwm txoj hauv kev rau cov kav dej rau cov kav dej.
Cov hlau siv rau Carbon Steel Yeeb Nkab yog cov ntawv hlau los yog ib lub strips, uas tau muab faib ua rau hauv cov kav dej welded, hluav taws xob welded (kuj welded) kav thiab tsis siv neeg arc welded kav vim lawv cov txheej txheem sib txawv.
Stainless Rectangle Pipe yog ib hom hollow ntev round steel, uas yog dav siv nyob rau hauv industrial kis pipelines thiab mechanical structural Cheebtsam xws li roj av.
Peb muab cov yeeb nkab zoo Seamless Steel Yeeb Nkab, carbon steel yeeb nkab, alloy steel yeeb nkab thiab lwm yam. Nws khaws ib tug loj tus naj npawb ntawm cov khoom lag luam txhua xyoo nrog ua tiav hom thiab specifications.
GI Rectangular Tube nto yog kub-dip plated lossis galvanized txheej welded steel yeeb nkab. Kub-dip galvanized Tube tuaj yeem ua rau muaj kev tiv thaiv corrosion ntawm cov kav hlau thiab ua rau lub neej ntev.
Galvanized Round Pipe yog ib qho welded steel yeeb nkab nrog kub-dip lossis electro-galvanized txheej ntawm qhov chaw. Galvanizing tuaj yeem ua rau muaj kev tiv thaiv corrosion ntawm cov kav hlau thiab ua rau lawv lub neej ua haujlwm ntev.
Cov txiaj ntsig ntawm Galvanized Steel Pipe
Exceptional Durability
Galvanized steel kav yog paub rau lawv zoo kawg li durability. Cov zinc txheej ua raws li cov txheej txheem kev txi, tiv thaiv cov hlau hauv qab los ntawm kev xeb thiab txuas ntxiv lub neej ntawm cov kav dej.
Corrosion Resistance
Cov txiaj ntsig tseem ceeb ntawm galvanized steel kav yog lawv cov kev tiv thaiv zoo tshaj rau corrosion. Lawv tuaj yeem tiv taus ib puag ncig hnyav, nrog rau cov dej noo, tshuaj lom neeg, thiab txawm tias nyob hauv av.
Lub neej ntev
Vim lawv cov corrosion kuj zoo heev, galvanized steel kav muaj lub neej ntev dua piv rau cov kav hlau tsis tu ncua. Lawv tuaj yeem kav ntev txog 50 xyoo lossis ntau dua, txo qhov xav tau kev hloov pauv ntau zaus.
Kev kho qis
Galvanized steel kav yuav tsum tau saib xyuas tsawg kawg ntawm lawv lub neej. Lub zinc txheej ua raws li kev kho tus kheej, kom ntseeg tau tias me me khawb lossis abrasions tsis cuam tshuam rau kev ncaj ncees ntawm cov yeeb nkab.
Ntau yam
Galvanized steel kav yog tsim rau ntau yam kev siv, nrog rau cov khoom siv dej, cov kav dej, cov kav dej, cov kav dej, cov khoom siv sab nraum zoov, laj kab, thiab lwm yam. Lawv sib xws nrog ntau yam fittings thiab connectors, muab kev yooj yim hauv installation.
Nqi-zoo
Txawm hais tias galvanized steel kav tej zaum yuav muaj tus nqi pib dua piv rau lwm cov ntaub ntawv, lawv lub neej ntev thiab kev saib xyuas tsis zoo ua rau lawv xaiv tus nqi zoo nyob rau lub sijhawm ntev.
Vim Li Cas Xaiv Peb
Muaj peev xwm ntau lawm
Tangshan Xunzhuo International Trade Co., Ltd. yog ib pab pawg neeg steel tuam txhab koom ua ke cov steel kev lag luam thiab kev lag luam thoob ntiaj teb. Peb muaj 7 kab ntau lawm, ntau tshaj 500 tus neeg ua haujlwm, thiab muaj peev xwm tsim tau txhua hli ntawm 100, 000 tons, ua tiav cov xaj xaj rau cov neeg siv khoom zoo thiab raws sijhawm.
Ua kom tiav ntau yam ntawm cov khoom
Lub tuam txhab cov khoom tseem ceeb muaj xws li galvanized steel coils, galvalume steel coils, xim-coated steel coils, corrugated steel ru tsev panels, txias-kuav los tiag nyuaj steel, txhuas xim coated coils, tinplate, TFS thiab lwm yam daim hlau raws li zoo raws li lub kaum sab xis steel, channel steel. , H-shaped steel, Hlau pas nrig, rebar / rebar, steel yeeb nkab, steel sawb, thiab lwm yam.
Kev soj ntsuam nruj nruj
Cov kws tshaj lij kev soj ntsuam zoo cov neeg ua haujlwm ua cov kev tshuaj xyuas zoo ntawm cov khoom xaj los ntawm cov neeg siv khoom. Los ntawm kev tsim khoom, ntim khoom mus rau kev thauj mus los, lawv ua tib zoo taug qab qhov zoo thoob plaws hauv cov txheej txheem kom ntseeg tau tias cov neeg siv khoom tau txais cov khoom txaus siab.
Kev Pabcuam
Peb muaj ib pab neeg ua haujlwm pabcuam thiab ua tiav kev muag khoom. Txhua tus neeg ua haujlwm hauv txhua txoj haujlwm ntawm lub tuam txhab muaj ntau tshaj li ntau xyoo ntawm kev ua haujlwm txawv teb chaws. Tag nrho pab neeg muaj kev paub txog kev txawj ntse, kev cog lus kev ua tau zoo thiab muaj peev xwm tiv thaiv kev pheej hmoo los muab cov neeg siv khoom nrog kev tshaj lij thiab cov kev pabcuam zoo.
Ordinary steel kav tsis tshua muaj kev tiv thaiv corrosion tshaj galvanized steel kav. Zinc plating yog hais txog qhov chaw ntawm cov kav hlau uas tau galvanized. Nws yuav yog welded kav los yog seamless kav. Seamless hais txog cov txheej txheem tsim cov kav hlau, nrog vuam thiab tsis muaj Sewing cov ntsiab lus. Galvanized kav yog resistant rau corrosion thiab seamless kav yuav tiv taus siab dua. Galvanized steel yeeb nkab tsis yooj yim rau xeb vim zinc tiv thaiv.
Galvanized steel kav yog sib dua li seamless steel kav. Yog tias nws yog siv rau balconies, nws yog qhov zoo tshaj plaws los siv cov kav dej galvanized. Seamless steel kav tsis haum rau lub sam thiaj. Vim tias seamless steel yeeb nkab phab ntsa tuab, lub ntuj hnyav hnyav, thiab tus nqi ntawm cov yeeb nkab seamless steel yog siab dua tus nqi ntawm cov yeeb nkab steel galvanized, thiab galvanized steel yeeb nkab yog ruaj khov, thiab kev pab cuam lub neej yog ntau dua. seamless steel yeeb nkab. Yog tias qhov khoom zoo dhau lawm, nws yuav tsum tsis txhob muaj teeb meem rau ntau tshaj 20 xyoo. Tau kawg, qhov vuam thiab pleev xim yuav tsum ua kom zoo, thiab nws yuav tsis cuam tshuam rau lub neej kev pab cuam ntawm cov yeeb nkab steel galvanized. Siv qhov sib txawv: galvanized steel yeeb nkab feem ntau yog siv rau laj kab, laj kab, guardrails, sam thiaj guardrails. Dav siv nyob rau hauv engineering engineering, txoj kev, factories, tsev kawm ntawv, kev loj hlob zones, vaj, plazas, thaj chaw nyob thiab lwm qhov chaw.
Galvanized steel kav muab faib ua kub-dip galvanizing thiab txias-galvanizing. Qhov kub-dip galvanizing yog tsau cov yeeb nkab hauv cov kua zinc kub kom cov zinc nkag mus rau hauv cov hlau. Qhov saum npoo ntawm cov yeeb nkab muaj txheej txheej zinc tuab thiab corrosion kuj siab dua li qhov txias-dip galvanizing. Tau kawg, tus nqi kuj tseem siab dua qhov txias-dip zinc. Txias-dip zinc yog tiag tiag cov yeeb nkab electro-galvanized. Ib txheej ntawm zinc adheres rau saum npoo ntawm lub raj los ntawm electroplating tshuaj tiv thaiv, tab sis cov zinc txheej yog nyias thiab yooj yim poob. Tus nqi pheej yig dua.
Tus nqi ntawm ob qho tib si yog siab dua li cov kav hlau zoo tib yam. Tom qab tshwj xeeb txau rau ntawm qhov chaw ntawm cov kav dej galvanized, kev ua haujlwm tiv thaiv corrosion yog kaum ob lub sijhawm siab dua li cov kav hlau.
Kub-dip galvanized steel yeeb nkab
Kub-dip galvanized steel yeeb nkab yog tus cwj pwm los ntawm cov txheej txheem txheej, zoo adhesion, thiab kev pab lub neej ntev. Coiled galvanized strips feem ntau siv rau zinc supplementation. Kub-dip galvanized steel yeeb nkab yog ib txoj kev ntawm alloying molten steel thiab hlau-raws li cov ntaub ntawv los ua ib tug alloy. Nws yog ib hom tshiab ntawm kub-dip galvanized steel yeeb nkab uas sib txuas cov khoom siv hlau thiab cov ntaub ntawv txheej. Kub-dip galvanizing yog xaiv cov yeeb nkab steel ua ntej. Txhawm rau tshem tawm cov hlau oxide nyob rau saum npoo ntawm cov yeeb nkab steel, tom qab pickling, nws yog ces kho nrog ammonium chloride los yog zinc chloride aqueous tov los yog ib tug tov aqueous tov ntawm ammonium chloride thiab zinc chloride. Ntxuav nws ua ntej xa mus rau lub tank kub-dip txheej. Nyob rau hauv cov ntaub ntawv no, lub nto ntawm cov yeeb nkab steel undergoes complex lub cev thiab tshuaj cov tshuaj tiv thaiv nrog cov kua hlau los ua ib tug corrosion-resistant ntom zinc-hlau alloy. Cov txheej yog tag nrho nrog cov ntshiab zinc txheej thiab cov yeeb nkab steel substrate thiab muaj corrosion kuj zoo.
Cold galvanized steel yeeb nkab
Zinc txheej ntawm txias-dip galvanized steel yeeb nkab yog ib txheej electroplated sib cais los ntawm cov yeeb nkab steel puag khoom. Lub thickness ntawm galvanized txheej yog me me, adhesion rau steel yeeb nkab substrate yog muaj zog, nws yog ib qho yooj yim mus poob, thiab corrosion kuj tsis zoo. Yog li ntawd, nyob rau hauv pej xeem vaj tse, txias-galvanized steel kav tsis tuaj yeem siv los ua cov kav dej. Txias galvanizing yog hais txog galvanizing, thiab tus nqi ntawm galvanizing tsawg heev, feem ntau ntawm 10-50 g / m2, tab sis nws cov corrosion kuj yog ntau dua li cov kav dej kub-dip galvanized.
Galvanized Steel Yeeb Nkab Manufacturing txheej txheem
Kev xaiv khoom
Cov txheej txheem pib ua tib zoo xaiv cov hlau zoo, feem ntau cov hlau tsis tshua muaj, uas paub txog nws lub zog thiab kev ua kom zoo.
Kev tsim yeeb nkab
Cov hlau xaiv tau dhau los ua cov txheej txheem, suav nrog kev txiav, khoov, thiab shaping, los tsim cov kav dej ntawm qhov xav tau. Cov kauj ruam no ua kom cov kav dej ua tau raws li kev lag luam tshwj xeeb thiab cov phiaj xwm tshwj xeeb.
Kev npaj nto
Txhawm rau npaj cov yeeb nkab saum npoo rau galvanization, nws dhau los ntawm cov txheej txheem tu kom huv si kom tshem tawm cov impurities, xws li av, roj, thiab oxides. Qhov no ua kom pom qhov adhesion ntawm zinc txheej.
Galvanization
Tom qab qhov saum npoo ntawm cov yeeb nkab steel yog pretreated, nws tuaj yeem galvanized. Muaj ob txoj hauv kev ntawm galvanizing: kub-dip galvanizing thiab electro-galvanizing. Kub-dip galvanizing yog tso rau hauv cov yeeb nkab steel hauv molten zinc, kom cov zinc reacts nrog rau saum npoo ntawm cov yeeb nkab steel los tsim ib txheej zinc. Electrogalvanizing yog muab tso rau hauv cov yeeb nkab steel hauv cov tshuaj electrolyte uas muaj zinc ions, thiab los ntawm kev ua ntawm hluav taws xob tam sim no, zinc ions raug txo kom zinc ions nyob rau saum npoo ntawm cov yeeb nkab steel.
Txias thiab tshuaj xyuas
Tom qab galvanization, cov kav dej tau ua tib zoo txias thiab tshuaj xyuas kom tsis tu ncua, adhesion, thiab thickness ntawm zinc txheej. Cov kauj ruam no ua kom zoo thiab kav ntev ntawm cov khoom tiav.
Ntim
Ntim galvanized steel yeeb nkab. Nws feem ntau yog ntim rau hauv hnab yas lossis thawv los tiv thaiv cov zinc txheej ntawm cov yeeb nkab steel los ntawm kev puas tsuaj.
Kev siv hauv hnub ci zog
Hnub ci vaj huam sib luag muaj qhov loj ntawm 20-24kg kom ntseeg tau tias lub kaw lus tsis cuam tshuam los ntawm cov teebmeem ntawm cua daj cua dub lossis cua daj cua dub. Yog li ntawd, cov ncej txhawb nqa yuav tsum muaj zog thiab muaj peev xwm tiv taus cov khoom loj thiab cua theem ntawm 10 thiab 12 hauv huab cua cua. Tsis tas li ntawd, cov thav duab uas txhawb nqa lub hnub ci yog muab tso rau sab nraud thiab feem ntau cuam tshuam los ntawm huab cua, yog li lawv yuav tsum tiv thaiv corrosion.
Ua tsaug rau nws qhov ruaj khov, ruaj khov, muaj zog siab, load-bearing, thiab cov qauv zoo, Galvanized steel tuaj yeem ua tau raws li tag nrho cov kev xav tau saum toj no hauv yuav luag txhua cov ntaub ntawv. Cov zinc txheej rau sab nraud ntawm cov kav hlau steel muaj kev tiv thaiv zoo, ua rau kev siv lub sij hawm ntev ntawm cov kav dej. Yog li ntawd, galvanized steel, tshwj xeeb tshaj yog cov yeeb nkab, lub thawv, thiab V-shaped steel, feem ntau xaiv los ua thav ntawv rau lub hnub ci zog.
Kev thov hauv kev ua liaj ua teb
Galvanized steel yeeb nkab muaj xeb kuj zoo, ntau qhov ntau thiab tsawg, thiab yooj yim rau kev tsim thiab nruab, yog li nws tau siv dav hauv cov kav dej.
Dub thiab kub-dip galvanized steel kav kuj tau siv dav hauv kev yug tsiaj. Cov kav hlau loj yog siv los ua cov khoom noj lossis cov kav dej pov tseg rau cov tsiaj txhu thiab cov nqaij qaib.
Nyob rau hauv kev nuv ntses, ntses ua liaj ua teb tawb yog tsim los ntawm kub-dip galvanized steel kav, hloov xyoob tawb, kov yeej cov kev txwv nyob rau hauv xeb kuj, lub neej expectancy, thiab lub tawb breakage thaum muaj ntau underground nthwv dej.
Kev siv hauv cov kav dej
Cov kav dej hlau tau siv dav hauv cov dej xa dej thiab cov kav dej, cov kav dej siab siab, lossis cov kav dej sab nraum zoov. Qhov xwm txheej ntawm cov haujlwm no txhua tus xav tau lub peev xwm loj, yooj yim khoov thiab zoo raws li qhov chaw thiab qhov chaw teeb tsa, yog li galvanized steel yeeb nkab yog qhov kev xaiv tsim nyog tshaj plaws.
Cov kav hlau square los yog lub voj voos yog siv rau lub tshuab cua, sib sau ua ke hauv tsev, scaffolding, bearing trusses, ...
Kev siv hauv kev sib txuas lus
Kev sib txuas lus hauv xov tooj yog lub hauv paus ntawm kev sib txuas lus. Ntau cov ntaub ntawv kev sib txuas lus siv cov kav hlau galvanized los tsim cov teeb pom kev zoo rau pej xeem, cov kab hluav taws xob ultrasonic, cov pawg tshaj tawm, xov tooj sib txuas lus, xov tooj thaiv, cov thawv khoom, ...
Kev siv hauv kev tsim kho
Daim ntawv thov ntawm cov kav dej galvanized hauv kev tsim kho yuav tsum tau hais tias yog cov khoom siv tseem ceeb rau vaj tse thiab kev ua haujlwm hauv vaj tse xws li rails, gutters, laj kab, ... kev siv sab nraum zoov.
Cov khoom tseem ceeb ntawm Galvanized yeeb nkab
Cov pa roj carbon steel
Cov pa roj carbon steel yog cov khoom siv feem ntau gi yeeb nkab. Nws yog tsim los ntawm cov hlau alloy nrog cov ntsiab lus siab carbon thiab muaj cov khoom siv zoo thiab kev sib txuas. Thaum lub sij hawm tsim cov txheej txheem ntawm carbon steel galvanized kav, qhov saum npoo ntawm carbon steel yeeb nkab yog thawj pickled kom tshem tawm cov roj stains thiab oxides, thiab ces ib txheej ntawm zinc yog tsim nyob rau saum npoo ntawm cov yeeb nkab steel los ntawm kub-dip galvanizing txheej txheem, li no txhim kho corrosion kuj ntawm cov yeeb nkab steel. kev ua tau zoo.
Hlau alloy
Alloy steel yog ib hom hlau uas muaj hlau thiab lwm yam alloying ntsiab. Nws hloov cov qauv qauv thiab cov khoom ntawm cov hlau los ntawm kev ntxiv cov ntsiab lus alloy, xws li molybdenum, chromium, npib tsib xee, thiab lwm yam, yog li txhim kho lub zog, hardness, hnav tsis kam thiab lwm yam ntxwv ntawm cov kav hlau steel. Alloy steel galvanized kav feem ntau yog siv rau hauv cov xwm txheej uas tiv taus qhov kub thiab txias, kev kub ntxhov lossis kev ua haujlwm tshwj xeeb, thiab muaj kev tiv thaiv corrosion zoo thiab kub tsis kam.
Aluminium
Galvalume yeeb nkab yog ib hom steel yeeb nkab ua los ntawm txhuas. Aluminium yog lub teeb yuag, corrosion-resistant, thiab muaj thermal conductivity zoo. Aluminium galvanized kav feem ntau yog siv rau hauv kev tsim kho, kev thauj mus los thiab lwm yam kev lag luam kom txo tau cov qauv kev thauj khoom thiab txhim kho kev ua tau zoo ntawm lub tsev.
Tom qab ua tiav thiab kho cov kav hlau Galvanized
Kev kho deg ntawm galvanized steel kav
Galvanized steel kav yog twb galvanized thaum lub sij hawm tsim khoom, uas muab lawv cov thawj barrier tiv thaiv corrosion. Txawm li cas los xij, cov yeeb nkab steel tseem xav tau kev kho deg ntxiv ua ntej kev teeb tsa thiab siv. Qhov no suav nrog, tab sis tsis txwv rau, tshem cov roj, plua plav, thiab lwm yam impurities los ntawm qhov chaw ntawm cov yeeb nkab steel. Yog tias cov impurities tsis raug tshem tawm, lawv tuaj yeem cuam tshuam rau txheej txheej galvanized ntawm cov yeeb nkab steel thiab ua kom nws cov corrosion.
Txiav thiab ua cov galvanized steel kav
Thaum txiav thiab ua cov kav dej galvanized steel, cov cuab yeej tshwj xeeb thiab cov txheej txheem yuav tsum tau ua kom tsis txhob muaj kev puas tsuaj rau txheej galvanized. Piv txwv li, siv lub tshuab txiav tshwj xeeb lossis saw hniav los txiav cov kav hlau tsis siv cov saw hniav lossis lub log sib tsoo. Tsis tas li ntawd, thaum lub sij hawm ua cov txheej txheem, nws tseem yuav tsum tsis txhob khawb los yog cuam tshuam rau saum npoo ntawm cov yeeb nkab steel, uas yuav dhau los ua qhov pib ntawm corrosion.
Kev sib txuas ntawm galvanized steel kav
Kev sib txuas ntawm galvanized steel kav kuj yog qhov txuas uas xav tau kev saib xyuas. Cov kev sib txuas feem ntau muaj xws li vuam, xov txuas, thiab flange txuas. Thaum xaiv txoj kev sib txuas, yam xws li txoj kab uas hla, phab ntsa thickness, thiab kev siv ib puag ncig ntawm cov yeeb nkab steel yuav tsum tau muab coj los xav. Piv txwv li, rau cov kav hlau steel nrog cov kab uas loj dua, kev sib txuas flange feem ntau yog siv; thaum rau cov kav hlau steel nrog me me diameters, threaded kev sib txuas tuaj yeem xaiv tau. Thaum lub sij hawm txoj kev sib txuas, nws tseem yuav tsum tau ua kom lub sealing thiab nruj ntawm kev sib txuas kom tsis txhob xau los yog xoob.
Anti-corrosion kho ntawm galvanized steel kav
Txawm hais tias galvanized steel yeeb nkab nws tus kheej twb muaj peev xwm los tiv thaiv corrosion, ntxiv kev tiv thaiv corrosion tseem yuav tsum tau nyob rau hauv qee qhov chaw tshwj xeeb siv, xws li av noo, acid-base, thiab lwm qhov chaw. Piv txwv li, kev ntsuas xws li siv cov tshuaj tiv thaiv corrosion los yog qhwv daim kab xev los tiv thaiv corrosion ntawm cov kav dej steel tuaj yeem siv los txhim kho lub peev xwm tiv thaiv corrosion ntawm cov kav hlau.
Kev tshuaj xyuas tsis tu ncua thiab tu cov kav dej galvanized steel
Galvanized steel kav yuav tsum tau kuaj xyuas thiab tu thaum siv. Qhov no suav nrog kev tshuaj xyuas seb qhov chaw ntawm cov yeeb nkab steel puas yog xeb, khawb, lossis lwm yam puas; xyuas seb cov kev sib txuas yog nruj thiab kaw; thiab xyuas seb cov yeeb nkab steel puas yog deformed lossis khoov. Thaum pom ib qho teeb meem, nws yuav tsum tau kho thiab kho lub sijhawm kom tsis txhob muaj teeb meem ntxiv.
Kev khaws cia thiab kho cov kav dej galvanized steel
Galvanized steel yeeb nkab kuj yuav tsum tau khaws cia thiab tu kom zoo thaum tsis siv. Cov kav hlau yuav tsum tau muab cia rau hauv qhov chaw qhuav, qhov cua kom deb ntawm cov dej noo lossis tshav ntuj ncaj qha. Nyob rau tib lub sijhawm, yuav tsum muaj qee qhov kev ncua deb ntawm cov kav dej steel kom tsis txhob muaj kev sib tsoo lossis extrusion. Kev txhim kho galvanized steel kav yuav tsum tau ntxuav thiab tswj tsis tu ncua kom ntev lawv lub neej kev pab cuam.
Environmental tiv thaiv kev kho mob ntawm galvanized steel kav
Nrog rau kev paub txog kev tiv thaiv ib puag ncig, kev tiv thaiv ib puag ncig ntawm cov kav dej galvanized steel tau dhau los ua qhov tseem ceeb. Thaum muab pov tseg ntawm cov kav dej galvanized steel, cov kev cai ib puag ncig thiab cov qauv yuav tsum tau ua kom tsis txhob muaj kuab paug ib puag ncig. Piv txwv li, cov kav hlau seem tuaj yeem siv tau thiab rov siv dua, lossis lawv tuaj yeem raug kho tsis zoo los ntawm cov koom haum ua haujlwm tshaj lij.
Peb lub Hoobkas
Langzo Steel yog nyob rau hauv Suav steel puag-Boxing nroog, Shandong xeev, Tuam Tshoj uas yog ib tug steel pab pawg neeg tuam txhab uas muag kev lag luam steel thiab thoob ntiaj teb kev lag luam, peb cov subsidiaries yog: Shandong Langzo New Materials Co., Ltd.; Vanten Hlau Corporation Limited thiab Tangshan Jingjin ColdRolled Galvanizing Co.. Ltd.etc.Our muaj peev xwm ntau lawm yog li ntawm 100000 tons ib hlis twg nrog 7 cov kab ntau lawm.
FAQ
Cim npe nrov: galvanized steel yeeb nkab, Tuam Tshoj galvanized steel yeeb nkab manufacturers, lwm tus neeg, Hoobkas
