600 TUJ TXAWB HLAU HOOG

Ib qho 600- nyhav ib lub nkoj ho yog lub zog loj rau kev saib xyuas, kho, cia, lossis tsheb thauj mus los. Cov hoists feem ntau siv nyob rau hauv cov nkoj nkoj, marinas, thiab cov hauv paus naval kom nqa nkoj, yachts, thiab txawm tias cov nkoj me me tawm hauv dej.

Cov yam ntxwv tseem ceeb ntawm 600 TUJ TXAWB HLAU HOAN:
Siab thauj khoom muaj peev xwm - tuaj yeem nqa cov nkoj uas muaj txog 600 metric tons (~ 1.32 lab lbs).

Musrility - nruab nrog lub log lossis lem rau yooj yim txav ib ncig ntawm cov docks lossis nkoj nkoj.

Kho cov hlua \/ cradles - Customizable nyom cov ntsiab lus kom haum rau kev hull txawv.

HYDRAULIC LOS LOS UA HAUJ LWM - Kev du thiab tswj kev nqa tsheb.

Stability & Kev Nyab Xeeb Lub Tshuab - Nta xws li load sensors, tiv thaiv cov tshuab sab nraud, thiab tus brake.

Versatility - tuaj yeem lis ntau lub nkoj ntau hom, suav nrog cov nkoj nuv ntses, khoom siv tes ua tub rog, thiab yachry khoom kim heev.

 

 

Kev sib piv nrog lwm cov tub rog kev tswj kev daws teeb meem

Yam zoo	Mean Nkoj Gantry Crane	Ncig tsheb nqa	Forklift (Tubrog Nkoj)
Kev mus ncig	Portable, qee lub log	Tsau lossis tsheb ciav hlau-mounted	Zoo heev
Lub peev xwm	1-7 tons	10 - 100+} tons	2-10 tons
Zoo tshaj plaws rau	Cov nkoj me me, DIY yards	Loj marinas	Lub cev muaj nkoj hnyav
Tus nqi	Qi dua	Siab dua	Tswj kav

 

Lifting muaj peev xwm 1 - 20 tons
Ntsev (Dav) 3 - 12 meters (kho tau)
Lifting qhov siab 3 - 10 meters
Kev Ua Haujlwm Chav Kawm A6 {0}} A5 (Lub Teeb rau Nruab Nrab Ua Haujlwm)
Hoisting ceev 0. {5 - 8 m \/ min (variable)
Maine Beam Hom Tib \/ Ob Chav Girder (Box-Hom)
Fais fab mov 220v \/ 380v 3-}}}}
Kev tswj hom pendant tswj \/ wireless chaw taws teeb
Hoist hom hluav taws saw hoist \/ hlau hlua hoo
Taug kev tsav cov phau ntawv tsav phaus lossis lub cev muaj zog
Corrosion tiv thaiv kub-dip galvanized los yog marine-qib-qib xim
Cua tsis kam mus rau Beaufort nplai 6 (rau kev siv sab nraum zoov)
Kev khiav hauj lwm temp -20 degree rau +50 degree

 

 

 

Ib qho 600- nyhav ib tuj lub nkoj hoist yog lub zog loj rau kev saib xyuas, kho, lossis cia. Ntawm no yog cov ntsiab lus tseem ceeb ntawm xws li lub hoist:

1. Tus Qauv Txheej Txheem
Beams loj \/ Girders - Hnyav-Duty-Duty-Duty-Duty-Dute uas txhawb rau tag nrho cov kev thauj khoom.

Cov Tswv Cuab Hla - muab kev ruaj ntseg tom qab sab laug thiab faib qhov hnyav.

Kawg cov neeg khiav lag luam - wheeled lossis taug qab cov qauv uas tso cai rau kev mus ncig.

2. Lifting system
Cov kheej kheej kheej kheej kheej (lossis hluav taws xob winches) - thawj lub neej ua haujlwm (feem ntau synchronized).

Thauj cov khoom xa tuaj - faib cov plaub hnyav dua hla lub nkoj hauv nkoj.

Nqa cov hlua \/ Chains - cov hlua khi hnyav lossis cov saw hlau uas ruaj ntseg lub nkoj.

3. Kev Mobility System
Cov log \/ lem - tso cai rau cov hawv txoj kev xav txav mus raws cov khoom lag luam lossis chaw nres nkoj.

Tsav lub cev roj motors - hluav taws xob lossis hydraulic motors rau cov ntawv.

Kauj tiawg - rau cov meej maneuvering.

4. Fais fab system
HYDRAULIC COV NTAUB NTAWV FAIS (HPU) - muab cov kua mis rau kev nqa \/ txav.

Electrator \/ Generator - lub hwj chim cov twj thiab tswj.

Tswj vaj huam sib luag - tus neeg teb xov tooj interface rau kev nqa \/ txav.

5. Kev Nyab Xeeb & Tswj System
Ntsaws cov hlwb - saib xyuas qhov hnyav.

Txwv txoj kev hloov mus - tiv thaiv kom dhau kev nqa khoom lossis hla kev.

Nres nres (E-Nres) - raug kaw tam sim ntawd thaum tsis ua haujlwm.

Synchronization system - ua kom muaj zog txawm tias nqa ntawm txhua lub ntsiab lus.

6. Nkoj cradles (yeem)
Adjustable cradles los txhawb cov duab hull ua haujlwm.

Roj hmab padding los tiv thaiv kev puas tsuaj.

7. Stabilizers \/ Groudiggers
Nthuav ob txhais ceg kom tiv thaiv kev rub thaum nqa.

8. Kev tiv thaiv huab cua (yeem)
Toj lossis npog los tiv thaiv lub nkoj thaum lub sijhawm saib xyuas.

 

B. Txhawb Nqa Cov Ceg (Xaus Cov Vev Xaib)

Ib qho 600- nyhav lub nkoj ho thaiv kawg yog cov khoom lag luam loj heev ntawm lub nkoj loj loj (nce mus txog 600 metric tons Hauv qab no yog cov ntsiab lus tseem ceeb txog lawv tus qauv tsim, muaj nuj nqi, thiab nta:

1. Lub Hom Phiaj & Ua Haujlwm
Thaum kawg cov neeg saib xyuas txhawb nqa txoj kev xav, feem ntau yog cov log lossis cov nqaj hlau uas tso cai rau tag nrho cov hawv kom txav mus raws txoj kev.

Lawv faib cov khoom loj thiab ua kom muaj kev ruaj khov thaum lub sijhawm nqa thiab tsheb thauj mus los.

Feem ntau ua khub nrog synchronized Lifting txheej txheem (hydraulic lossis hluav taws xob) kom muaj kev nyab xeeb ua cov nkoj loj \/ yachts.

2. Cov ntsiab lus tseem ceeb
Log \/ Rail System: Hnyav-Luag-Hnyav Tus Hlau Log Los Yog Bogies Uas Txav Mus Nyob Raws Cov Ntsia Taag.

Hydraulic Lifting thooj kheej kheej kheej: muab lub zog quab yuam xav kom nqa lub nkoj.

Cov txheej txheem txheej txheem: Kev siv hluav taws xob siv hluav taws xob rau kev siv rau leg 600- tuj loads.

Druchicchism: Fais lossis hydraulic motors rau kev txav ntawm kev tsheb nqaj hlau.

Tswj Txheej Txheem: Centralized lossis wireless tswj rau kev ua haujlwm synchronized.

3. Cov Kev Tsim Txiaj Ntsig
Load muaj peev xwm: Yuav tsum muaj kev nyab xeeb txhawb nqa 600 tons + qhov kev nyab xeeb rau qhov tseeb (feem ntau {{% ntxiv).

Stability: dav logbase thiab anti-ntsis nta kom tiv thaiv kev hloov pauv.

Corrosion Kuj: Marine-Qib Txheej Txheem lossis Stainless Hlau Cheebtsam.

Synchronizes: kom ntseeg tau ob qho tib si nqa nqa \/ txav ib txhij kom tsis txhob muaj kev ntxhov siab tsis sib xws.

 

 

C. Base ncej (Red System)

Tso cov pa dej

Cov kab mob hnyav los yog cov ciav hlau rau txoj kev ua kom du ntawm lub hoist.

Lub cev muaj zog taug kev (lub log-tsav lossis kev tsheb ciav hlau) rau kev thauj cov nkoj rov qab.

Tuaj yeem tsim los ua txoj kev ncaj lossis nkhaus raws li cov txheej txheem chaw.

 

 

2. Lifting & hoisting tshuab

Ib qho 600- nyhav ib tuj lub nkoj hoist yog lub zog loj (txog 600 metric tons) rau kev tu, kho, lossis cia. Kev nqa & hoisting tshuab yog qhov tseem ceeb ntawm nws lub lag luam, kom muaj kev nyab xeeb ntawm cov nkoj qhuav, cov nkoj xa khoom, lossis marinas.

Cov Ntsiab Lus Ntawm Kev Lifting & Hoisting Mechanism
Kev Nqa Hydraulic Nqa

Siv cov khoom siv hluav taws xob siab hydraulic mus tsa thiab txo qis lub nkoj hoist.

Muab cov khawb, tswj kev nqa nrog kev thauj tsawg kawg nkaus.

Feem ntau suav nrog synchronized thooj voos kheej kheej kom ntseeg tau tias qhov hnyav faib.

Cov hlua hlau & pulley System (yeem)

Qee cov hoists siv cov hlua hlau nrog winches rau kev nqa khoom.

Ntau yam sheaves (pulleys) faib lub load tusyees.

Nruab nrog kev tiv thaiv ntau dhau thiab cov tshuab siv braking.

 

 

Cov faib lossis nqa caj npab

Cov caj npab hloov kho lossis txhawb nqa lub duav ntawm lub nkoj.

Yuav tuaj yeem kho rau lub nkoj sib txawv sib txawv (catamarans, monohulls, thiab lwm yam).

Padded lossis roj hmab-coated los tiv thaiv kev puas tsuaj.

Travelchism (Cov Chav Txhaws)

Cov log lossis taug qab kev tso cai rau cov kev xav txav nkoj rov qab horizontally.

Powered los ntawm hluav taws xob lossis siv hluav taws xob.

Cov tsheb nqaj hlau coj ua cov khoom siv ncaj ncees.

Tswjhwm system

Tus neeg teb xov tooj-tswj ntawm lub pendant, chaw taws teeb, lossis alarin.

Cov Nta thauj khoom, nres thaum muaj xwm ceev, thiab kev sib cav sib ceg.

Yuav suav nrog kev siv hluav taws xob rau cov chaw nkoj kom zoo.

Tshuab ceev

Tshaj cov sensors los tiv thaiv kev ua kom hnyav tshaj qhov kev txwv hnyav.

Tsis muaj kev nyab xeeb brakes thiab cov xauv hlau.

Cov teeb meem xwm txheej ceev thaum muaj lub zog tsis ua haujlwm.

 

 

4. Kev xaiv khoom ntxiv

Ib qho 600- nyhav ib tuj lub nkoj hoist yog lub zog loj rau kev saib xyuas, chaw cia khoom, lossis thauj. Yeem accessories txhim kho kev ua haujlwm, kev nyab xeeb, thiab kev ua tau zoo. Nov yog qee cov khoom siv xaiv rau cov hoist:

1. Hydraulic & Hluav Taws Xob Hluav Taws Xob
Kev tswj cov chaw taws teeb tswj cov chaw taws teeb - Wireless lossis Wireless lossis cov chaw taws teeb rau kev nyab xeeb thiab yooj yim ua haujlwm.

Kev sib xws Hydraulic - du thiab ua kom haum kev hloov kho.

Backup Fais Fab System - Khoom siv hluav taws xob thaum muaj xwm ceev nyob rau hauv cov ntaub ntawv ntawm kev tawm.

Kev Tshawb Xyuas Kev Ntsuas Xyuas - Ntsuas hnyav ntsuas thiab kev tiv thaiv.

2. Lifting & Txhawb Khoom Siv
Adjustable cradles - Customizable hull txhawb nqa rau cov khoom siv nkoj txawv.

Nylon lossis roj hmab ncoo - tsis-swb, tsis yog-marring kev tiv thaiv rau hulls.

Tus Hluav Taws Xob Kab Npauj - rau kev sib npaug lifting dav lossis cov hlab hnyav.

Ntau tus taw kev tshem tawm cov khoom siv - ntxiv Lifting cov ntsiab lus rau kev ruaj khov.

3. Muaj Mob thiab Muab
Rail systemer - rau kev coj mus rau hauv cov nkoj lossis cov docks qhuav.

Tus kheej propelled tsav lub cev - lub cev muaj zog kom yooj yim repositioning.

Cov pab ntawm kauj - rau kev txhim kho maneuverability hauv cov chaw nruj.

4. Kev Nyab Xeeb & Kev Tiv Thaiv
Anti-collision sensors - txwv tsis pub muaj kev cuam tshuam kom muaj kev sib cuam tshuam nrog cov nyom.

Nres Nres khawm - tam sim ntawd nres ua haujlwm yog tias xav tau.

Cua brakes \/ stabilizers - tiv thaiv kev txav hauv cov khoom cua uas muaj mob.

LED ua haujlwm teeb - rau kev ua haujlwm thaum hmo ntuj.

5. Tshwj xeeb ntxiv-ons
Nkoj ntxuav system - kev ua ke ntxuav dav hlau rau kev txij nkawm hull.

Sandblasting \/ Ntxuav platform - rau hull npaj thiab kho.

Tig mechanism - tso cai rau kev sib hloov nkoj rau 360 degree nkag tau.

Caj npab docking - rau yooj yim dua thaum nqa.

6. Kev xaiv cov kev xaiv
Kev ntsuas qhov siab ncua \/ ntev - rau cov nkoj loj lossis cov khoom yuav tsum tau ua.

Corrosion-Resistant Txheej - rau cov chaw ua tubrog nkoj (piv txwv li, galvanized lossis epoxy pleev xim).

Kev Cai Xim \/ Xim - Branding lossis Pom Kev Txhim Kho.

 

Daim duab kos

 

Cov Tshuab Tseem Ceeb

 

A {{0 {}} nyhav ib tuj mob nkoj hoistyog lub luag haujlwm hnyav uas tau tsim los tuav cov hlab ntsha loj hauv cov nkoj loj hauv cov nkoj nkoj, marinas, thiab kho cov chaw. Ntawm no yog nws cov txiaj ntsig tseem ceeb:

1. Kev Muaj Peev Xwm Lifting

Tuaj yeem nqa nkoj thiab nkoj hnyav kom txog600 tons, ua rau nws haum rau yachts loj, cov nkoj lag luam, thiab nkoj tub rog.

Txo qhov xav tau ntawm cov docks qhuav lossis cranes tas.

2. Muaj Mobry & Yooj Yim

Nruab nrogWheeled lossis tsheb nqaj hlau-mounted, Tso cai yooj yim txav mus los ntawm qhov chaw.

Yuav tuaj yeem tso cov nkoj ua ntej rau kev kho vaj tse, txij nkawm, lossis cia.

3. Chaw Ua Tau Zoo

Tshem tawm cov kev xav tau rau cov chaw pov tseg qhuav tas li, txuag qhov chaw dej muaj txiaj ntsig.

Qhov zoo tagnrho rau cov chaw nrog txwv chaw tab sis muaj tsheb nkoj siab.

4. Cov haujlwm nrawm dua

Kev nqa ceev ceev thiab tsim tawm piv rau cov qauv kev ua kom qhuav-docking.

Txo lub nkoj poob qis, nce kev ua haujlwm ntau.

5. Versatility

Muaj peev xwm tswj hwm ntau hom nkoj (Sailboats, lub cev muaj zog yachts, nuv ntses nkoj, cov nkoj nuv ntses, thiab lwm yam).

Cov khoom siv tau hloov kho cov hlua lossis cov menyuam mos uas haum cov duab hull sib txawv.

6. Nqi siv tau zoo

Txo cov nqi thiab tu cov nqi piv rau cov khoom tawg qhuav.

Txo cov nqi ua haujlwm los ntawm kev nrawm nrawm nrawm thiab tua cov txheej txheem.

7. Txhim Kho Kev Nyab Xeeb

Kev tsim kho ruaj khov nrogSynchronized Cov Tshuab Hydraulicua kom muaj kev ntsuas sib npaug.

Tsawg cov kev pheej hmoo ntawm kev puas tsuaj ntawm kev puas tsuaj thaum rub tawm haujlwm.

8. Ib puag ncig tus phooj ywg

Txo qhov xav tau ntawm dredging lossis cov qauv qauv tas mus li uas cuam tshuam rau cov tub rog ecosystem.

Ib co qauv sivFais lossis Hybrid Hwj Chimrau cov pa loj.

9. Ntau lub hom phiaj siv

Tuaj yeem siv rauNkoj Cia, tso cai stacking ntawm ntau lub nkoj thaum tsis siv.

Pab tau rauTsaus thaum muaj xwm ceev evesntawm cov nkoj tsis zoo lossis puas.

10. Kev hloov kho rau cov chaw sib txawv

Tuaj yeem ntsia tau rau hauvFloating Docks, Nkoj, lossis Kho Chaw.

Haum rau ob qho tib sidej qab ntsev thiab dej tsis qab ntsevib puag ncig nrog cov khoom siv corrosion.

Cov ntawv thov zoo tagnrho:

Marinas- Rau yacht txij nkawm thiab cia.

Cov nkoj thauj khoom- Rau kev siv nkoj thiab kev kho nkoj.

Tub Rog & Raum Tsav- Rau cov nkoj dawb paug xa tawm thiab rov ua haujlwm.

Chaw nres nkoj nuv ntses- Rau kev pabcuam cov neeg nuv ntses coob coob.

Xaus:

A {{0 {}} nyhav ib tuj mob nkoj hoistyog lub zog loj, yoog raws, thiab cov tshuaj muaj txiaj ntsig zoo rau kev siv cov hlab ntsha uas tsis tas yuav tsum muaj kev tsim kho hauv tsev mus tas li. Nws txoj kev mus ncig, nrawm, thiab kev nyab xeeb nta ua rau nws muaj txiaj ntsig zoo rau cov khoom lag luam tshiab rau cov tub rog caij ntuj tshiab.

 

Ib qho 600- nyhav ib lub nkoj ho dag, xws li cov nkoj loj, thiab cov nkoj ua lag luam, marinas, thiab kho cov chaw. Ntawm no yog cov ncauj lus kom ntxaws tawg ntawm nws cov ntawv thov, nta, thiab cov txiaj ntsig:

Cov Ntawv Thov Tseem Ceeb:
Nkoj Yard & Marina Kev Ua Haujlwm

Lifting thiab hloov nkoj los ntawm dej los cia khoom lossis chaw muag khoom.

Tuav cov nkoj mus txog 600 tons (piv txwv li, mega yachts, nuv ntses trawlers, cov nkoj kev saib xyuas).

Kho Vaj Tsev & Txij Nkawm

Muab chaw ua nkoj rau Hull tshuaj xyuas cov duab, pleev xim, lossis lub cav kho vaj tse.

Qhov zoo tagnrho rau qhuav docking yam tsis tas yuav tsum muaj ib qho kev ua yeeb yam ruam.

Tub Rog & Tsoom Fwv

Tshaj tawm thiab rov ua cov nkoj ntawm Naval Patrol, submarines (qauv me me), lossis tshawb nrhiav cov hlab ntsha.

Kev Lag Luam & Lub Nkoj Tuav Tes Taw

Thauj cov worboxats loj, ferries, lossis barges nyob rau hauv cov chaw nres nkoj thiab Fabricication cov chaw.

Kev ua haujlwm thaum muaj xwm ceev

Salvaging sunken lossis cov hlab ntsha puas hauv cov dej hiav txwv lossis chaw ntug dej hiav txwv.

 

Tus txheej txheem ntau lawm ntawm 600- nyhav ib ce crane, los ntawm cov qib, los ntawm kev tsim khoom, los ua ke, thiab commissioning. Hauv qab no yog cov ncauj lus kom ntxaws ntawm cov txheej txheem ntau lawm:

1. Tsim & Engineering
Tsim qauv tswv yim tswv yim: engineers tsim cov qauv ua ntej raws li thauj khoom muaj peev xwm (600 tons), ncua kev ua kom siab, thiab kev mus ncig.

Kev Ntsuam Xyuas Cov Txheej Txheem: Finiteter Kev Tshawb Xyuas (FEA) yog siv los simulate kev ntxhov siab, deflection, thiab kev thauj khoom zoo.

Neeg kho tshuab & hluav taws xob: tshuab hluav taws xob: tshuab hydraulic \/ pneumatic, lub cev muaj zog, winches, thiab tswj cov tshuab tsim.

Kev tswj hwm kev ua raws li: Tswj kev ua raws li cov qauv zoo li ISO, DIN, OSHA, lossis Lloyd txoj kev sau npe rau Marine Cranes.

3D qauv & prototyping: cad software (solidworks, autocad) yog siv rau cov qauv ntsiab lus.

2. Cov Khoom Siv Pauv
High-zog hlau: kab teeb Main, txhua, thiab cov pob zeb yog tsim los ntawm Astm A572 lossis S355jr steel.

HYDRAULIC CATION: twj, kheej kheej kheej, thiab cov khoom siv los ntawm cov neeg xa khoom (Bosch Rexroth, Parker).

Lub Tshuab Hluav Taws Xob: Cov Hluav Taws Xob (Siemens, ABB), PLCS, Sensors, thiab Tswj Panels.

Cov log \/ lem: rau kev mus ncig (nkees nkees lossis nkees-mounted).

3. Kev ua haujlwm
A. qauv ntaub thaiv
Txiav: Ntshav \/ Laser Txiav rau cov hlau nplaum hlau.

Vuam: submerged arc vuam (pom) rau cov kab tuab; MIG \/ TIG rau cov ua ke precision.

Machining: CNC Machining rau qhov chaw siab rau qhov chaw (ringsing nplhaib, zog).

Txhaj tshuaj Blasting & Painting: Kev kho mob corrosion (Epoxy Primer + Polyurethane Topcoat).

B. Neeg kho tshuab ua ke
Girder Siv: Lub thawv gobders lossis truss tsim rau lub loj tawg.

Kev txhim kho hydraulic: thooj voos kheej kheej, twj, hoses, thiab reservoirs.

Druchismism: log \/ lem nrog Gearboxes thiab brakes.

Lifting tshuab: hlau hlua, hooks, thiab sheaves rated rau 600 tons.

C. Hluav Taws Xob & Tswj Kev Lag Luam
Plc & hmi teeb: rau kev tswj lub tshuab (Siemens, Allen-Bradley).

Lub Nruab Nrab Kev Nyab Xeeb: Txwv tsis pub hloov chaw, thauj cov cells, kev tiv thaiv ntau dhau.

Lub Hwjchim faib khoom: hluav taws xob, cables, thiab cov tshuab thaum muaj xwm ceev.

4. Kev tswj hwm zoo & kuaj
NDT (tsis yog-ua kev puas tsuaj): Ultrasonic, x-ray, lossis nqus cov pa tshuaj rau cov ntaub ntawv.

Kev Tshawb Xyuas:

Kev Ntsuam Xyuas Zoo Li Qub: 125% ntawm SWL (750 Tons) los xyuas cov qauv kev ntseeg siab.

Dynamic Kuaj: Kev Xeem Ua Haujlwm ntawm 100% thauj khoom (600 tons).

Cov Kev Ntsuam Xyuas Kev Ua Haujlwm: Kev Ntsuas Hydraulic Siab, Nres Kuaj, Txheeb Xyuas Thaum Muaj Xwm Ceev.

5. Sib Dhom & Chaw Haujlwm
Kev sib dhos ua ke (yog tias mranular): cov cranes loj yuav raug xa hauv qhov chaw thiab sib sau ua ke ntawm cov khoom.

Cov kev hloov kho zaum kawg: calibration ntawm sensors, zoo-tu ntawm cov hluav taws xob hluav taws xob.

Cov neeg teb xov tooj kev kawm: kev cob qhia kev ua haujlwm rau kev ua haujlwm kom zoo.

6. Kev xa khoom & installation
Tsheb thauj mus los: rhuav tshem rau cov qauv hnyav; yuav tsum muaj ntawv tso cai tshwj xeeb.

Kev teeb tsa: Lub hauv paus npaj (yog tias tsau), kawg ntsia liaj qhov ceev, thiab cov tshev.

Ntawv pov thawj: Kev Soj Ntsuam Xyuas Thib Peb (piv txwv li, DNV, ABS) ua ntej siv.

Rhiav Saib:

Lub tuam txhab tau teeb tsa cov khoom siv tswj hwm kev txawj ntse platform, thiab tau teeb tsa 310 teev (teeb tsa) ntawm kev tuav thiab vuam hlau. Tom qab ua tiav ntawm txoj kev npaj, yuav muaj ntau tshaj 500 teev (teeb tsa), thiab cov khoom siv sib txuas lus yuav ncav cuag 95%. 32 VUAM txoj kab tau muab tso rau hauv kev siv, 50 tau npaj yuav tsum tau nruab, thiab kev siv lub tshuab ntawm cov kab ntawv tag nrho tau mus txog 85%.