Yuav Ua Li Cas Cov Neeg Yuav Khoom B2B Yuav Tsum Ua Tus Qauv Tooj Liab vs. Aluminium Fire Hose

Kev yuav khoomcov raj xa hluav tawsrau kev lag luam, kev lag luam, lossis kev faib khoom hauv nroog yuav tsum tau sib npaug ntawm kev siv nyiaj tam sim ntawd nrog kev ntseeg siab rau kev ua haujlwm mus sij hawm ntev. Ntawm cov kev txiav txim siab tseem ceeb tshaj plaws uas cov pab pawg yuav khoom ntsib yog xaiv cov khoom siv tseem ceeb: tooj dag lossis txhuas. Txawm hais tias ob qho tib si hlau ua haujlwm lub hom phiaj tseem ceeb ntawm kev ua kom zoo nkauj thiab coj dej lossis ua npuas dej ntawm qhov siab siab, lawv cov khoom siv hlau sib txawv hloov pauv qhov sib txawv ntawm cov khoom siv, kev cia siab ntawm lub neej, thiab kev ua tau zoo ntawm cov neeg siv kawg.

RauCov neeg yuav khoom B2B, kev sib cav txog tooj dag piv rau txhuas tsis yog tsuas yog qhov teeb meem ntawm kev nyiam kev siv tshuab xwb, tab sis kev xam tus nqi tag nrho ntawm kev muaj (TCO). Nrog rau cov nqi khoom lag luam hlau thoob ntiaj teb hloov pauv, kev nkag siab txog cov kev siv tshwj xeeb, cov kev cai saib xyuas, thiab cov voj voog hloov pauv ntawm cov ntaub ntawv no yog qhov tseem ceeb rau kev tiv thaiv cov npoo ntawm cov neeg faib khoom thiab ua kom ntseeg tau tias ua raws li cov cai tswjfwm kev nyab xeeb ntawm lub neej.

Vim li cas cov khoom siv nozzle cuam tshuam rau tag nrho cov nqi ntawm kev muaj

Tus nqi tag nrho ntawm kev muaj lub taub dej tua hluav taws ntev dua li tus nqi pib ntawm lub Hoobkas. Cov taub dej txhuas feem ntau muab tus nqi qis dua vim tias tus nqi raw khoom ntawm cov hlau txhuas qis dua piv rau tooj liab hnyav. Txawm li cas los xij, kev xam TCO yuav tsum suav nrog lub neej ua haujlwm xav tau. Lub taub dej txhuas uas muaj zog anodized tus qauv yuav muaj lub neej ua haujlwm ntawm 5 txog 10 xyoo hauv kev pabcuam hauv nroog ua ntej xov hnav lossis galling yuav tsum tau hloov.

Ntawm qhov tod tes, cov nozzles forged tooj dag, txawm tias nqa 30% txog 50% nqi siab dua hauv cov nqi yuav khoom thawj zaug, feem ntau tshaj 15 txog 20 xyoo ntawm kev pabcuam txuas ntxiv. Tooj dag ntuj tiv taus galvanic corrosion thiab xov degradation yam tsis tas yuav tsum tau kho qhov chaw thib ob. Cov neeg yuav khoom yuav tsum ntsuas qhov qis dua tus nqi yuav khoom thiab cov nqi xa khoom ntawm txhuas piv rau lub voj voog hloov pauv ntev thiab qis dua kev saib xyuas ntawm tooj dag.

Cov ntawv thov twg nyiam siv tooj dag lossis txhuas nozzles

Qhov chaw ua haujlwm qhia txog qhov tsim nyog ntawm cov khoom siv. Cov ntawv thov uas muaj kev txav mus los ntau nyiam siv txhuas. Cov chaw tua hluav taws hauv nroog, cov chaw tua hluav taws hauv hav zoov, thiab cov pab pawg teb sai sai ntawm cov tsev siab xav tau cov khoom siv sib dua kom txo qhov qaug zog ntawm cov neeg tua hluav taws; lub nozzle txhuas tuaj yeem txo qhov hnyav ntawm qhov kawg ntawm txoj kab hose txog li 60%.

Cov nozzles tooj dag tseem yog tus qauv tsis muaj kev sib cav hauv kev siv ruaj khov, xeb heev, lossis kev siv ua haujlwm hnyav. Cov nkoj hauv dej hiav txwv, cov chaw roj hauv hiav txwv, cov chaw ua roj petrochemical, thiab cov chaw nres nkoj ntug dej hiav txwv yuav tsum tau siv tooj dag lossis tooj dag alloys. Qhov kev tiv taus ntawm tooj dag rau xeb dej ntsev thiab nws lub peev xwm los tiv taus kev cuam tshuam loj heev yam tsis muaj kev tawg loj heev ua rau nws yog qhov yuav tsum tau ua rau kev siv hauv kev lag luam hnyav.

Cov Lus Qhia Txog Kev Ua Haujlwm ntawm Cov Hose Hluav Taws Kub Tseem Ceeb rau Kev Yuav Khoom

Kev tsim kom muaj cov lus qhia txog kev ua tau zoo yog lub hauv paus ntawm txoj kev npaj yuav khoom uas ntseeg tau. Cov neeg yuav khoom B2B yuav tsum ua ntau tshaj li cov lus piav qhia dav dav thiab yuam kom muaj cov qib hlau tshwj xeeb, kev kam rau siab, thiab cov qauv ntsuas. Lub taub dej tua hluav taws txheem yuav tsum ua haujlwm zoo kawg nkaus hauv qab lub zog siab txij li 100 PSI txog 250 PSI (7 txog 17 bar), xav tau kev kam rau siab engineering nruj txawm tias cov khoom xaiv los xij.

Yuav ua li cas tooj dag thiab txhuas nozzles sib piv rau kev ua tau zoo

Cov kev ua tau zoo ntawm tooj dag thiab txhuas txiav txim siab lawv qhov siab tshaj plaws ua haujlwm. Tooj dag forged (feem ntau yog C36000 lossis CW614N) muaj lub zog tensile zoo dua thiab tiv taus kev cuam tshuam, tswj kev ruaj khov ntawm cov qauv hauv qab qhov siab siab heev. Cov nozzles txhuas (feem ntau yog aerospace-grade 6061-T6) muab qhov sib piv zoo heev ntawm lub zog-rau-qhov hnyav tab sis vam khom lawv cov kev kho saum npoo kom ruaj khov.

Cov neeg yuav khoom yuav tsum xyuas seb lawv puas muaj cov duab kos thiab cov qauv kuaj

Thaum soj ntsuam cov qauv ua ntej tsim khoom thiab cov duab kos engineering, cov pab pawg yuav khoom yuav tsum xyuas kom meej qhov ntev ntawm qhov ntev nruj me ntsis hauv ± 0.1 hli. Kev sib haum xeeb ntawm cov xov yog qhov tseem ceeb; cov neeg yuav khoom yuav tsum xyuas kom meej tias tus neeg muag khoom tuaj yeem ua kom raug cov qauv hauv cheeb tsam xws li National Hose (NH / NST) rau North America, BSP rau Tebchaws Europe, lossis cov couplings tam sim ntawd xws li Storz thiab Machino.

Tsis tas li ntawd xwb, qhov tseeb ntawm qhov ntws yog qhov tseem ceeb heev. Yog tias lub nozzle raug ntsuas rau 150 nkas loos ib feeb (GPM) ntawm 100 PSI, cov qauv yuav tsum xa cov dej ntws no tas li hauv 5% ntawm qhov yuam kev. Cov neeg yuav khoom yuav tsum thov cov ntaub ntawv computational fluid dynamics (CFD) lossis cov ntawv qhia txog kev ntsuas lub cev ntws los ntawmtus neeg tsim khoomlos ua pov thawj qhov kev tsim qauv dej sab hauv.

Cov yam tseem ceeb uas ua rau lub neej ntev, qhov hnyav, thiab kev saib xyuas yog dab tsi

Qhov ruaj khov ntawm cov nozzles txhuas yog txuas nrog qhov zoo ntawm nws cov anodizing. Cov neeg yuav khoom yuav tsum qhia Hom III tawv-txheej anodizing nrog qhov tuab tsawg kawg yog 50 microns kom tiv thaiv kev puas tsuaj ntawm qhov chaw thiab galvanic corrosion thaum txuas nrog cov hlau sib txawv. Yog tias txheej anodized raug tawg, cov txhuas hauv qab yuav lwj sai sai hauv qhov chaw ib puag ncig hnyav.

Rau cov nozzles tooj dag, qhov hnyav yog qhov tseem ceeb tshaj plaws rau kev ruaj khov. Lub nozzle tooj dag 1.5-nti txheem tuaj yeem hnyav ntawm 3.5 txog 5.0 lbs (1.6 txog 2.2 kg), piv rau lub nozzle txhuas loj sib xws ntawm 1.5 txog 2.0 lbs (0.7 txog 0.9 kg). Cov yam ntxwv txij nkawm kuj txawv; tooj dag xav tau kev txhuam tsis tu ncua yog tias xav kom cov qauv zoo nkauj raug tswj hwm, thaum txhuas xav tau kev tshuaj xyuas zoo ntawm cov txheej anodized thiab tshem tawm tam sim ntawd yog tias cov gouges tob pom cov hlau nyoos.

Kev Ua Raws Cai, Daim Ntawv Pov Thawj, thiab Cov Kev Cai Tsim Nyog ntawm Tus Neeg Muab Khoom

Hauv kev lag luam khoom siv rau kev nyab xeeb ntawm lub neej, kev ua raws li txoj cai tsis yog qhov yuav tsum tau sib tham. Kev xa cov raj xa dej tua hluav taws uas tsis tau ntawv pov thawj tuaj rau hauv yuav ua rau cov neeg faib khoom muaj kev lav phib xaub loj heev, cov khoom raug hu rov qab, thiab raug tshem tawm ntawm tsoomfwv lossis cov kev sib tw hauv nroog uas muaj txiaj ntsig zoo. Cov txheej txheem kev tsim nyog ntawm cov neeg muab khoom yuav tsum muab qhov tseem ceeb rau cov txheej txheem kev tswj hwm zoo uas tuaj yeem txheeb xyuas tau thiab cov ntawv pov thawj khoom tshwj xeeb hauv cheeb tsam.

Cov ntawv pov thawj twg tseem ceeb rau cov neeg lag luam uas xav tau

Cov lag luam uas xav tau daim ntawv pov thawj yuav tsum tau ua. Rau kev lag luam North American, Underwriters Laboratories (UL) thiab Factory Mutual (FM) kev pom zoo yog cov qauv tseem ceeb rau kev lag luam muaj txiaj ntsig. Hauv European Union, Marine Equipment Directive (MED) "Wheelmark" yog qhov yuav tsum tau ua rau kev siv maritime, thaum EN 15182 ua raws li kev cai tswj hwm cov kav dej tuav tes rau kev siv hluav taws.

Cov neeg faib khoom uas tsom mus rau Middle East lossis Commonwealth feem ntau xav tau daim ntawv pov thawj BSI Kitemark lossis LPCB. Kev yuav cov nozzles nrog cov ntawv pov thawj no ua kom ntseeg tau tias cov khoom tau dhau los ntawm kev sim siab ntawm cov neeg thib peb rau kev siab hydrostatic, kev xeb ntsev, thiab kev ua haujlwm ntws tas mus li.

Yuav ua li cas los ntsuam xyuas ISO 9001 thiab lub peev xwm ntawm cov neeg muab khoom

Ib tus neeg muag khoom thovDaim ntawv pov thawj ISO 9001: 2015yog qhov yuav tsum tau ua ua ntej, tab sis cov neeg yuav khoom yuav tsum tshawb nrhiav kom tob dua txog lub peev xwm tiag tiag ntawm lub chaw tsim khoom. Kev ntsuam xyuas cov neeg muag khoom zoo suav nrog kev tshuaj xyuas lub Hoobkas Txoj Kev Tswj Xyuas Zoo (QCP).

Cov neeg yuav khoom yuav tsum xyuas seb lub chaw tsim khoom puas ua qhov kev sim hydrostatic 100% ntawm kab sib dhos lossis cia siab rau kev kuaj cov lej suav. Rau cov khoom siv kev nyab xeeb rau lub neej, kev sim 100% ntawm 1.5 npaug ntawm qhov siab tshaj plaws ua haujlwm (piv txwv li, kev sim lub nozzle 200 PSI ntawm 300 PSI) yuav tsum yog tus qauv tsis muaj kev cuam tshuam. Tsis tas li ntawd, kev ntsuam xyuas cov peev xwm ntawm cov cuab yeej hauv tsev thiab cov txheej txheem taug qab cov khoom siv raw muab kev nkag siab rau lawv qhov kev ntseeg siab mus sij hawm ntev.

Cov ntaub ntawv twg yuav tsum tau nrog cov xaj ntau

Yuav kom txo tau kev pheej hmoo ntawm kev xa khoom tuaj thiab xyuas kom meej tias kev xa khoom ntau ntau yuav tsum muaj cov ntaub ntawv pov thawj tiav. Cov kev cai tsawg kawg nkaus suav nrog Cov Ntawv Qhia Txog Kev Ntsuas Khoom Siv (MTRs) uas lees paub cov tshuaj lom neeg ntawm cov tooj dag lossis cov hlau txhuas, thiab daim ntawv pov thawj EN 10204 3.1 uas qhia txog cov txiaj ntsig ntawm kev sim ntau ntau.

Tsis tas li ntawd xwb, daim ntawv pov thawj keeb kwm (COO) yog qhov tseem ceeb rau kev xam cov nqi xa khoom tuaj kom raug. Nyob ntawm qhov chaw nres nkoj mus, cov neeg yuav khoom kuj yuav tsum tau ua kom muaj cov ntawv tshuaj xyuas ua ntej xa khoom los ntawm cov koom haum sab nraud uas tau lees paub (xws li SGS, TUV, lossis Bureau Veritas) kom paub tseeb tias cov khoom xa tuaj phim cov qauv kub uas tau pom zoo.

Kev Xav Txog Kev Yuav Khoom, MOQ, Kev Ntim Khoom, thiab Kev Thauj Mus Los

Kev hloov ntawm cov lus qhia txog kev siv tshuab mus rau cov txheej txheem xa khoom suav nrog kev ua kom zoo dua Qhov Tsawg Kawg Nkaus (MOQs), cov txheej txheem ntim khoom, thiab kev thauj khoom. Qhov sib txawv ntawm qhov hnyav ntawm tooj dag thiab txhuas cuam tshuam loj heev rau kev lag luam xa khoom, xav tau cov tswv yim logistics tshwj xeeb kom tswj tau cov nyiaj tau los zoo.

Yuav ua li cas MOQ, cov cuab yeej, kev sau npe ntiag tug, thiab cov khoom tiav cuam tshuam rau kev nrhiav khoom

Cov MOQ tsim khoom sib txawv ntau heev raws li cov khoom siv thiab txoj kev tsim khoom. Cov nozzles tooj dag forged feem ntau hais kom muaj MOQ ntawm 200 txog 500 units, vim tias cov pwm forging xav tau lub sijhawm teeb tsa ntau. Cov nozzles txhuas, tshwj xeeb tshaj yog cov CNC-machined los ntawm extruded billet, yuav tso cai rau MOQ qis dua (100 txog 300 units) vim yog lub sijhawm teeb tsa sai dua.

Kev kho kom haum kuj cuam tshuam rau cov nqi yuav khoom. Cov neeg yuav khoom uas xav tau daim ntawv lo ntiag tug los ntawm kev kos duab laser lossis cov xim anodized tshwj xeeb (piv txwv li, liab lossis xiav rau cov chaw haujlwm hauv nroog tshwj xeeb) yuav tsum xav tias tus nqi ntawm ib chav yuav nce 10% txog 15% thiab MOQ siab dua. Cov nqi siv rau cov dej hauv tsev lossis cov ntaub ntawv xov tshwj xeeb tuaj yeem yog txij li $ 1,500 txog $ 4,000, uas yuav tsum tau suav nrog thoob plaws hauv daim ntawv yuav khoom.

Cov qauv ntim khoom thiab cov cim thawv twg thiaj li txo tau kev puas tsuaj

Cov taub hau ua los ntawm tooj dag hnyav yuav tsum muaj cov qauv ntim khoom nruj heev kom tiv thaiv kev puas tsuaj thaum thauj mus los. Yog tias cov khoom ua los ntawm tooj dag hnyav sib tsoo hauv lub thawv thaum thauj khoom hauv dej hiav txwv, cov xov uas tau ua tiav lawm yuav yooj yim hloov pauv, ua rau cov khoom tsis muaj txiaj ntsig. Txhua lub taub hau yuav tsum tau qhwv ib leeg hauv zaj duab xis npuas lossis muab tso rau hauv cov ntawv ntxig EPE ua npuas ncauj.

Cov thawv ntim khoom sab nraud yuav tsum siv cov thawv xa khoom xa tawm uas muaj tsib txheej corrugated. Qhov tseem ceeb, cov neeg yuav khoom yuav tsum ua raws li cov kev txwv hnyav ntawm cov thawv; tsis pub ib lub thawv twg hnyav tshaj 20 txog 25 kg (44 txog 55 lbs) kom ntseeg tau tias kev tuav tes muaj kev nyab xeeb ntawm lub tsev rau khoom xa tuaj. Cov cim ntawm lub thawv yuav tsum qhia meej txog qhov hnyav tag nrho, qhov hnyav tag nrho, SKU, hom xov, thiab suav nrog cov duab kos uas paub txog kev tuav.

Yuav ua li cas xam qhov cuam tshuam ntawm kev thauj khoom, lub sijhawm ua khoom xa tuaj, thiab kev pheej hmoo ntawm kev xa khoom tuaj

Qhov sib txawv ntawm qhov hnyav ntawm cov khoom siv hloov pauv qhov kev lag luam ntawm lub thawv thiab qhov cuam tshuam ntawm kev thauj khoom. Kev thauj khoom hauv dej hiav txwv raug txwv los ntawm ob qho tib si ntim (CBM) thiab qhov hnyav siab tshaj plaws. Vim tias tooj dag muaj qhov ntom ntom heev, lub thawv yuav ncav cuag nws qhov hnyav siab tshaj plaws ua ntej nws puv.

Qhov kev hloov pauv no txhais tau tias tus nqi thauj khoom rau ib chav rau cov nozzles tooj dag yog siab dua. Lub sijhawm ua khoom rau ob qho khoom siv feem ntau yog li ntawm 30 txog 45 hnub tom qab tso nyiaj, tab sis cov neeg yuav khoom yuav tsum ntxiv 10 hnub rau cov nozzles txhuas uas xav tau cov neeg sab nraud anodizing. Kev suav cov sijhawm ua khoom thiab cov kev cuam tshuam ntawm kev thauj khoom no yog qhov tseem ceeb rau kev tswj hwm cov qib kev nyab xeeb kom tsim nyog.

Yuav Ua Li Cas Cov Neeg Yuav Khoom Yuav Tsum Xaiv Ntawm Cov Tooj Liab Thiab Cov Hlau Aluminium Nozzles

Thaum kawg, qhov kev xaiv ntawm cov raj xa dej tua hluav taws tooj dag thiab txhuas tsis yog qhov kev txiav txim siab ob qho tib si ntawm cov khoom siv zoo tshaj plaws thoob ntiaj teb. Hloov chaw, nws yog kev sib phim zoo ntawm cov peev xwm khoom nrog cov kev xav tau tshwj xeeb ntawm cov neeg siv khoom kawg. Cov neeg faib khoom thiab cov pab pawg yuav khoom yuav tsum tshuaj xyuas lawv cov neeg siv khoom kom txiav txim siab yuav khoom uas muaj kev nyab xeeb thiab kev lag luam muaj txiaj ntsig zoo tshaj plaws.

Thaum tooj dag yog qhov kev xaiv lag luam muaj zog dua

Tooj dag tseem yog qhov kev xaiv lag luam muaj zog dua thaum muab cov lag luam uas muaj kev ruaj khov dua li kev txav mus los. Yog tias cov neeg siv khoom tseem ceeb ntawm tus neeg faib khoom yog nyob rau hauv kev lag luam maritime, roj thiab roj av hauv hiav txwv, kev tsim khoom hnyav, lossis kev ua cov tshuaj lom neeg, tooj dag yog tib qho kev xaiv uas siv tau. Nws qhov kev tiv taus ntsev tsuag thiab kev puas tsuaj ntawm ib puag ncig ua rau muaj kev ua raws li cov cai kev nyab xeeb maritime.

Kev lag luam, thaum tooj dag xav tau kev siv nyiaj ntau dua thaum pib, tus nqi siab dua txhais tau tias cov nyiaj tau los ntau dua rau ib chav. Tsis tas li ntawd, lub sijhawm ntev ntawm cov nozzles tooj dag ua rau muaj kev thov lav tsawg dua thiab muaj lub koob npe nrov dua rau kev ntseeg siab hauv cov chaw ua haujlwm tsis zoo.

Thaum txhuas zoo dua rau cov haujlwm hnyav-rhiab

Aluminium yog cov khoom siv tseem ceeb thaum muab cov khoom siv rau cov chaw tua hluav taws hauv nroog, cov kev pabcuam tua hluav taws hauv hav zoov, thiab cov pab pawg cawm neeg thaum muaj kev sib tsoo hauv huab cua. Hauv cov xwm txheej no, kev siv zog ntawm tus neeg siv kawg yog qhov tseem ceeb heev. Kev txiav ob peb phaus ntawm qhov kawg ntawm lub raj dej tua hluav taws uas tau them hluav taws xob txo qhov kev qaug zog ntawm cov neeg tua hluav taws, txhim kho lub sijhawm teb thiab kev nyab xeeb hauv kev ua haujlwm.

Rau cov haujlwm uas muaj qhov hnyav, tus nqi qis dua ntawm txhuas kuj tso cai rau cov chaw haujlwm hauv nroog uas muaj peev nyiaj tsawg los nruab ntau lub tsheb thiab cov neeg ua haujlwm.Cov neeg faib khoom uas tsom mus rau tsoomfwv cov kev sib twyuav pom tias cov lus qhia niaj hnub no ntawm cov nroog yuav tsum tau ua kom cov khoom siv txhuas uas tsis hnyav thiab tawv anodized.

Yuav ua li cas los tsim kom muaj ob txoj kev xaiv cov khoom siv nozzle

Cov neeg yuav khoom B2B uas xav txog yav tom ntej tsis tshua muaj kev txwv lawv tus kheej rau ib yam khoom siv xwb. Kev tsim kom muaj ob txoj kev xaiv khoom siv ua rau tus neeg faib khoom muaj peev xwm ntes tau ob qho kev lag luam hauv nroog thiab hauv nroog. Qhov sib piv ntawm cov khoom muag yog 70/30, uas hnyav rau qhov kev tsom mus rau tus neeg faib khoom tshwj xeeb lub hom phiaj tseem ceeb hauv kev lag luam.

Yuav kom ua tau zoo dua txoj kev npaj no, cov neeg yuav khoom

Cov Ntsiab Lus Tseem Ceeb

• Kev lag luam wholesale thiab kev xa khoom rau Hluav Taws Kub Hose Nozzle
• Cov lus qhia tshwj xeeb, kev ua raws li txoj cai thiab cov nqe lus lag luam uas cov neeg yuav khoom yuav tsum ua pov thawj
• Cov lus qhia ua tau rau cov neeg faib khoom thiab cov pab pawg yuav khoom

Cov Lus Nug Feem Ntau

Cov khoom siv twg zoo dua rau cov raj xa dej tua hluav taws siab?

Feem ntau tooj dag zoo dua rau kev ua haujlwm siab, feem ntau txog li 250 PSI, nrog rau kev cuam tshuam zoo dua thiab cov xov ruaj khov. Aluminium haum rau kev siv uas teb tau yooj yim dua, feem ntau txog li 200 PSI.

Thaum twg cov neeg yuav khoom yuav tsum xaiv cov txhuas hluav taws hose nozzles?

Xaiv txhuas thaum qhov hnyav tsawg tseem ceeb tshaj plaws, xws li kev teb rau hauv nroog, kev siv hav zoov, lossis kev ua haujlwm siab. Nws txo qhov qaug zog ntawm qhov kawg ntawm cov yeeb nkab thiab feem ntau txo cov khoom thauj thiab tus nqi yuav khoom.

Vim li cas cov taub hluav taws tooj liab thiaj li nyiam siv rau hauv cov chaw dej hiav txwv lossis cov chaw muaj xeb?

Tooj dag yeej tiv taus kev xeb dej ntsev thiab kev hnav xov zoo dua li cov txhuas uas tau coated. Nws yog ib qho kev xaiv zoo rau cov nkoj, cov platforms offshore, chaw nres nkoj, thiab cov chaw petrochemical.

Cov lus qhia tshwj xeeb twg yuav tsum tau lees paub ua ntej yuav khoom ntawm NBWorldFire?

Paub meej tias lub zog ua haujlwm, qib khoom siv, tus qauv xov, hom txuas, qhov ntev ntawm qhov ntev, thiab cov ntawv pov thawj xav tau. Rau cov xaj xa tawm, qhia meej NH/NST, BSP, Storz, lossis Machino.

Cov neeg yuav khoom yuav ua li cas thiaj li txo tau tag nrho cov nqi ntawm kev muaj cov kav dej tua hluav taws?

Sib phim cov khoom siv rau daim ntawv thov. Aluminium txo cov nqi ua ntej thiab cov nqi xa khoom, thaum tooj dag feem ntau kav ntev li 15-20 xyoo nrog kev saib xyuas tsawg dua, txo qhov zaus hloov pauv hauv cov chaw nyuaj.