Monel alloy 400
Lus piav qhia luv luv:
Monel 400yog anickel-tooj liab alloy(kwv yees li 67% Ni - 23% Cu) uas tiv taus dej hiav txwv thiab chav dej ntawm qhov kub thiab txias, nrog rau cov ntsev thiab cov tshuaj caustic.Alloy 400yog ib qho kev daws teeb meem alloy uas tuaj yeem tsuas yog hardened los ntawm kev ua haujlwm txias. Cov nickel alloy no nthuav tawm cov yam ntxwv zoo li corrosion kuj, zoo weldability thiab siab zog. Tus nqi qis qis hauv cov dej ntws nrawm nrawm los yog dej hiav txwv ua ke nrog kev ua haujlwm zoo rau kev ntxhov siab-corrosion tawg hauv cov dej tsis qab feem ntau, thiab nws cov kev tiv thaiv rau ntau yam corrosive ua rau nws siv dav hauv marine daim ntaub ntawv thiab lwm yam uas tsis yog-oxidizing chloride daws. Cov nickel alloy no tshwj xeeb tshaj yog tiv taus hydrochloric thiab hydrofluoric acids thaum lawv de-aired. Raws li xav tau los ntawm nws cov ntsiab lus tooj liab siab, alloy 400 tau nrawm nrawm los ntawm nitric acid thiab ammonia systems.
Monel 400 muaj cov khoom zoo heev ntawm qhov kub thiab txias, tuaj yeem siv rau hauv qhov kub txog li 1000 ° F, thiab nws cov ntsiab lus melting yog 2370-2460 ° F. Txawm li cas los xij, alloy 400 tsis tshua muaj zog nyob rau hauv annealed mob yog li, ntau yam tempers. tuaj yeem siv los ua kom muaj zog.
Daim ntawv muaj
- Daim ntawv
- Phaj
- Bar
- Tube & Tube (welded & seamless)
- Fittings (xws li flanges, slip-ons, blinds, weld-caj dab, lapjoints, ntev vuam caj dab, qhov (socket) welds, luj tshib, tees, stub-ends, rov qab, kaus mom, crosses, reducers, thiab cov txiv mis)
- Hlau
Cov yam ntxwv ntawm Monel 400 yog dab tsi?
- Resistant rau dej hiav txwv thiab chav nyob ntawm qhov kub thiab txias
- Kev tiv thaiv zoo heev rau cov dej ntws nrawm nrawm los yog dej hiav txwv
- Kev tiv thaiv zoo heev rau kev ntxhov siab corrosion tawg hauv feem ntau cov dej tsis qab
- Tshwj xeeb tshaj yog tiv taus hydrochloric thiab hydrofluoric acids thaum lawv de-aerated
- Muaj qee qhov kev tiv thaiv rau hydrochloric thiab sulfuric acids ntawm qhov kub thiab txias, tab sis tsis tshua muaj cov khoom xaiv rau cov kua qaub.
- Kev tiv thaiv zoo rau nruab nrab thiab alkaline ntsev
- Kev tiv thaiv rau chloride induced stress corrosion cracking
- Cov khoom siv kho tshuab zoo los ntawm qhov kub qis qis mus txog 1020 ° F
- Siab tiv taus alkalis
Tshuaj muaj pes tsawg leeg,%
| C | Mn | S | Si | Ni | Cu | Fe |
|---|---|---|---|---|---|---|
| 30 max | max 2.00 Nws | 024 max | .50 max | 6 3,0mn | 28.0-34.0 Nws | 2.50 max |
Corrosion Resistant Monel 400
Alloy 400 yog zoo tiv thaiv chloride ion kev nyuaj siab corrosion cracking nyob rau hauv ib puag ncig raug. Feem ntau, nws cov corrosion kuj zoo heev hauv kev txo qhov chaw, tab sis tsis zoo nyob rau hauv oxidizing tej yam kev mob. Nws tsis muaj txiaj ntsig hauv oxidizing acids, xws li nitric acid thiab nitrous. Txawm li cas los xij, nws yog resistant rau feem ntau alkalis, ntsev, dej, khoom noj khoom haus, organic tshuaj thiab atmospheric tej yam kev mob ntawm qhov kub thiab txias.
Cov nickel alloy no raug tawm tsam hauv cov roj ntsha sulfur-cov kabmob siab tshaj li ntawm 700 ° F thiab molten sulfur tawm tsam cov hlau ntawm qhov kub tshaj li ntawm 500 ° F.
Monel 400 muaj txog tib qho kev tiv thaiv corrosion li npib tsib xee tab sis nrog kev ua haujlwm siab tshaj plaws thiab qhov kub thiab txias thiab ntawm tus nqi qis vim nws muaj peev xwm ua tau zoo dua.
Monel 400 siv hauv daim ntawv thov twg?
- Marine engineering
- Cov khoom siv tshuaj thiab hydrocarbon ua
- Gasoline thiab dej tshiab tank
- Crude roj av tseem
- De-aerating cua sov
- Boiler pub dej rhaub thiab lwm yam kub exchangers
- Valves, twj, shafts, fittings, thiab fasteners
- Industrial tshav kub exchangers
- Chlorinated kuab tshuaj
- Crude roj distillation yees
Fabrication nrog Monel 400
Alloy 400 tuaj yeem yooj yim welded los ntawm cov roj-tungsten arc, roj hlau arc lossis cov txheej txheem hlau thaiv kev siv cov khoom siv hlau tsim nyog. Tsis xav tau kev kho cua sov tom qab vuam, txawm li cas los xij, kev tu kom huv tom qab vuam yog qhov tseem ceeb rau qhov zoo tshaj plaws corrosion kuj, txwv tsis pub muaj kev pheej hmoo ntawm kev kis kab mob thiab embrittlement.
Cov ntaub ntawv tiav tuaj yeem tsim tau rau ntau yam ntawm cov khoom siv kho tshuab thaum tswj kom zoo ntawm qhov kub lossis txias ua haujlwm thiab xaiv cov kev kho cua sov uas tsim nyog tau ua tiav.
Zoo li feem ntau lwm cov nickel alloys, Monel 400 feem ntau nyuaj rau tshuab thiab yuav ua hauj lwm nyuaj. Txawm li cas los xij, cov txiaj ntsig tau zoo tuaj yeem tau txais yog tias koj xaiv qhov raug rau kev siv cuab yeej thiab machining.
Khoom Qib
| Khoom siv | ASTM A240 Txuj | 201, 304 304L 304H 309S 309H 310S 310H 316 316H 316L 316L 316Ti 317 317L 321 321H 347 347H 409 4104L 301 |
| ASTM A480 Txuj | 302, S30215, S30452, S30615, 308, 309, 309Cb, 310, 310Cb, S32615, S33228, S38100, 304H, 309H, 3160Hb, 321H, 347H, 348H, S31060, N08811, N08020, N08367, N08810, N08904, N08926, S31277, S20161, S30600, S3022056, S312 S32654, S32053, S31727, S33228, S34565, S35315, S31200, S31803, S32001, S32550, S31260, S32003, S32101, S32205, S32205 S32520, S32750, S32760, S32900, S32906, S32950, S32974 | |
| JIS 4304-2005 Txuj | SUS301L, SUS301J1, SUS302, SUS304, SUS304L, SUS316/316L, SUS309S, SUS310S, 3SUS21L, SUS347, SUS410L, SUS430, SUS630 | |
| JIS G4305 Txuj | SUS301, SUS301L, SUS301J1, SUS302B, SUS304, SUS304Cu, SUS304L, SUS304N1, SUS304N2, SUS304LN, SUS304J1, SUSJ2, SUS305, SUS309S SUS315J1, SUS315J2, SUS316, SUS316L, SUS316N, SUS316LN, SUS316LN, SUS316Ti, SUS316J1, SUS316J1L, SUS317, SUS317L, SUS317LN, SUS3217SJ1 SUS890L, SUS321, SUS347, SUSXM7, SUSXM15J1, SUS329J1, SUS329J3L, SUS329J4L, SUS329J4L, SUS405, SUS410L, SUS429, SUS430, SUS430LX, SUS31, SUS43 SUS436J1L, SUS444, SUS445J1, SUS445J2, SUS447J1, SUSXM27, SUS403, SUS410, SUS410S, SUS420J1, SUS420J2, SUS440A |
Khoom Specification
| Ua kom tiav | Thickness | Yam ntxwv | Daim ntawv thov |
| Tsis yog 1 | 3.0mm ~ 50.0 hli | Ua tiav los ntawm kub dov, annealing thiab pickling, tus yam ntxwv los ntawm dawb pickled nto | Cov khoom siv tshuaj lom neeg kev lag luam, Cov tank muaj |
| No. 2B | 0.3mm ~ 6.0 hli | Ua tiav los ntawm kev kho cua sov, pickling tom qab txias dov, ua raws li daim tawv nqaij hla kab kom ci dua thiab du nto | General Application Medical Instruments, Tableware |
| No. BA (Zoo Annealed) | 0.5mm ~ 2.0 hli | Bright kev kho cua sov tom qab txias dov | Chav ua noj, chav ua noj khoom siv, lub hom phiaj architectural |
| No. 4 | 0.4mm ~ 3.0 hli | Polishing nrog No.150 rau No.180 mesh abrasives. Qhov nrov tshaj plaws tiav | Mis & Khoom noj khoom haus ua khoom siv, Tsev Kho Mob Khoom, Da-tub |
| No. 8 | 0.5mm ~ 2.0 hli | Daim iav zoo li lub ntsej muag los ntawm polishing nrog finer abrasives tshaj 800 mesh | Reflector, Daim iav, Sab hauv-Sab nrauv kho kom zoo nkauj forbuilding |
| HL (Hair Line) | 0.4mm ~ 3.0 hli | Ua tiav los ntawm kev txuas ntxiv linear polishing | Architectural lub hom phiaj, escalators, chav ua noj ware tsheb |
Tshuaj muaj pes tsawg leeg
| Qib | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | N | Cu | Nb |
| 201 | ≤ 0.15 | ≤1.0 | 5.50-7.50 Nws | ≤ 0.05 | ≤ 0.03 | 16.00-18.00 Nws | 3.50-5.50 Nws | - | - | 0.05-0.25 Nws | - | - |
| 202 | ≤ 0.15 | ≤1.0 | 7.50-10.00 Nws | ≤ 0.05 | ≤ 0.03 | 17.00-19.00 Nws | 4.00-6.00 Nws | - | - | 0.05-0.25 Nws | - | - |
| 301 | ≤ 0.15 | ≤1.0 | ≤ 2.0 | ≤ 0.045 | ≤ 0.03 | 16.00-18.00 Nws | 6.00-8.00 Nws | - | - | ≤0.1 | - | - |
| 302 | ≤ 0.15 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 8.00-10.00 Nws | - | - | ≤0.1 | - | - |
| 303 | ≤ 0.15 | ≤1.0 | ≤ 2.0 | ≤0.2 | ≥0.15 | 17.00-19.00 Nws | 8.00-10.00 Nws | ≤0.6 | - | ≤0.1 | - | - |
| 304 | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 8.00-10.00 Nws | - | - | - | - | - |
| 304l ua | ≤ 0.03 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 18.00-20.00 Nws | 8.00-10.00 Nws | - | - | - | - | - |
| 3 04h | 0.04-0.1 hli | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 18.00-20.00 Nws | 8.00-10.00 Nws | - | - | - | - | - |
| 304n ua | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 18.00-20.00 Nws | 8.00-10.00 Nws | - | - | 0.10-0.16 Nws | - | - |
| 304j 1 | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 18.00-20.00 Nws | 6.00-9.00 Nws | - | - | - | 1.00-3.00 Nws | - |
| 305 | ≤ 0.12 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 10.50-13.00 Nws | - | - | - | - | - |
| 309s ua | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 22.00-24.00 Nws | 12.00-15.00 Nws | - | - | - | - | - |
| 310S ib | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 24.00-26.00 Nws | 19.00-22.00 Nws | - | - | - | - | - |
| 316 | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | 10.00-14.00 Nws | 2.00-3.00 Nws | - | - | - | - |
| 316l ua | ≤ 0.03 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | 12.00-15.00 Nws | 2.00-3.00 Nws | - | - | - | - |
| 316 H | ≤0.1 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | 10.00-14.00 Nws | 2.00-3.00 Nws | - | - | - | - |
| 316n ua | ≤ 0.03 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | 10.00-14.00 Nws | 2.00-3.00 Nws | - | 0.10-0.16 Nws | - | - |
| 316 Ti | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 16.00-19.00 Nws | 11.00-14.00 Nws | 2.00-3.00 Nws | ≥5C | - | - | - |
| 317l ua | ≤ 0.03 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 18.00-20.00 Nws | 11.00-15.00 Nws | 3.00-4.00 Nws | - | - | - | - |
| 321 | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 9.00-12.00 Nws | - | 5C-0.7 ua | - | - | - |
| 347 ib | ≤ 0.08 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 9.00-12.00 Nws | - | - | - | - | 10C-1.10 Nws |
| 347 h ua | ≤0.1 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | 9.00-12.00 Nws | - | - | - | - | 8C-1.10 |
| 2205 | ≤ 0.03 | ≤1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 0.03 | 21.00-24.00 Nws | 4.50-6.50 Nws | 2.50-3.50 Nws | - | 0.08-0.20 Nws | - | - |
| 2507 ib | ≤ 0.03 | ≤ 0.8 | ≤1.2 | ≤ 0.035 | ≤ 0.02 | 24.00-26.00 Nws | 6.00-8.00 Nws | 3.00-5.00 Nws | - | 0.24-0.32 Nws | - | - |
| 904l ua | ≤ 0.02 | ≤1.0 | ≤ 2.0 | ≤ 0.045 | ≤ 0.03 | 19.00-23.00 Nws | 23.00-28.00 Nws | 4.00-5.00 Nws | - | - | 1.00-2.00 Nws | - |
| C276 | ≤ 0.02 | ≤ 0.05 | ≤1.0 | - | - | 14.00-16.50 dr hab | Lwm yam | - | - | - | - | - |
| Monel 400 | ≤0.3 | ≤0.5 | ≤ 2.0 | - | ≤ 0.024 | - | ≥63 | - | - | - | 28-34 : kuv | - |
| 409l ua | ≤ 0.03 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 17.00-19.00 Nws | - | - | - | - | - | - |
| 410 | ≤ 0.15 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 11.50-13.50 dr hab | - | - | - | - | - | - |
| 410l ua | ≤ 0.03 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 11.50-13.50 dr hab | - | - | - | - | - | - |
| 420j 1 | 0.16-0.25 dr hab | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 12.00-14.00 Nws | - | - | - | - | - | - |
| 420j 2 | 0.26-0.40 Nws | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 12.00-14.00 Nws | - | - | - | - | - | - |
| 430 | ≤ 0.12 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | - | - | - | - | - | - |
| 436l ua | ≤ 0.025 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-19.00 Nws | - | - | - | - | - | - |
| 439 ib | ≤ 0.03 | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | - | - | - | - | - | - |
| 440a ua | 0.60-0.75 Nws | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | - | ≤ 0.75 | - | - | - | - |
| 440b ua | 0.75-0.95 Nws | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | - | ≤ 0.75 | - | - | - | - |
| 440c ua | 0.95-1.2 Nws | ≤1.0 | ≤1.0 | ≤ 0.035 | ≤ 0.03 | 16.00-18.00 Nws | - | ≤ 0.75 | - | - | - | - |
| 441 ib | ≤ 0.03 | 0.2-0.8 hli | ≤0.7 | ≤ 0.03 | ≤ 0.015 | 17.50-18.50 Nws | - | ≤0.5 | 0.1-0.5 hli | ≤ 0.025 | - | 0.3 + 3C-0.9 |
Pebqhwv cov khoom lag luam stainless hlau nrog cov ntawv tiv thaiv xeb thiab cov nplhaib hlau kom tiv thaiv kev puas tsuaj.
Cov ntawv cim qhia tau tagged raws li tus qauv specification lossis cov neeg siv khoom cov lus qhia.
Kev ntim tshwj xeeb yog muaj raws li tus neeg siv khoom xav tau.
Stainless hlau kauj pob
Stainless Hlau Sheet / Stainless Hlau Phaj Pob
Stainless Hlau Sawb Pob
Ntim Ntim
Peb lub tuam txhab yog nyob rau hauv Wuxi, sib sau ua ke lub nroog ntawm industrial stainless hlau nyob rau hauv Suav teb.
Peb tshwj xeeb hauv stainless coils, nplooj ntawv thiab phaj, stainless hlau yeeb nkab thiab fittings, stainless hlau raj, thiab kuj txhuas cov khoom thiab cov khoom tooj liab.
Peb cov khoom tau txais kev qhuas zoo los ntawm peb cov neeg siv khoom los ntawm Tebchaws Europe, Amelikas, Middle East, African thiab Southeast Asia. Peb yuav muab cov khoom sib tw thiab kev pabcuam zoo rau cov neeg siv khoom.
Stainless hlau qib: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 316L, 421, 430, 430, 440, 440c,
Alloy Qib: Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, Kev Kub Ceev Hlau, Me Hlau, Aluminium, Alloy Steel, Carbon Steel, Tshwj Xeeb Nickel Alloys
Hauv daim ntawv: Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Raws, Profiles, Hlau Rods, Sheets, Phaj, Seamless Pipes, ERW Pipes, Flanges, Fittings, thiab lwm yam.
Q1: Dab tsi yog stainless hlau?
A: Stainless txhais tau tias tsis muaj cov cim ntawm cov hlau nto, los yog ib hom hlau uas tsis raug puas los ntawm huab cua lossis dej thiab tsis hloov xim, tsis muaj xim, tiv taus staining, xeb, cov nyhuv corrosive ntawm cov tshuaj.
Q2: Puas yog stainless txhais tau tias tsis xeb?
A: Tsis yog, stainless txhais tau tias tsis yooj yim kom tau stained lossis xeb, nws muaj peev xwm tshwj xeeb los tiv thaiv staining, xeb thiab corrosion.
Q3: Koj puas muab cov ntawv hlau stainless?
A: Yog, peb muab ntau hom stainless hlau los xij, nrog cov tuab ntawm 0.3-3.0mm. thiab nyob rau hauv txawv finishes.
Q4: Koj puas lees txais kev txiav mus ntev?
A: Tau kawg, cov neeg siv khoom txaus siab yog peb qhov tseem ceeb tshaj plaws.
Q5: Yog tias kuv muaj qhov kev txiav txim me me, koj puas kam txais kev txiav txim me me?
A: Tsis muaj teeb meem, koj qhov kev txhawj xeeb yog peb qhov kev txhawj xeeb, cov khoom me me raug lees txais.
Q6: Koj tuaj yeem lav koj cov khoom zoo li cas?
A: Ua ntej, txij thaum pib, peb twb tau siv lub siab rau lawv lub siab, uas yog lub neej zoo, peb cov neeg ua haujlwm thiab cov neeg ua haujlwm yuav ua raws txhua kauj ruam kom txog thaum cov khoom ntim tau zoo thiab xa tawm.
Q7: Koj puas tuaj yeem ntim cov khoom?
A: Cov neeg tshaj lij ua cov kev ntim khoom, peb muaj ntau hom kev ntim khoom xaiv rau cov neeg siv khoom, kev lag luam ib lossis zoo dua.
Q8: Koj yuav tsum paub dab tsi los ntawm cov neeg siv khoom ua ntej kev hais lus raug?
A: Rau cov lus hais kom raug, peb yuav tsum paub cov qib, tuab, qhov loj, qhov chaw tiav, xim thiab qhov ntau ntawm koj qhov kev txiav txim, thiab qhov chaw ntawm cov khoom. Customized cov ntaub ntawv khoom yuav xav tau ntau dua, xws li kos duab, layout thiab npaj. Tom qab ntawd peb yuav muab cov lus sib tw nrog cov ntaub ntawv saum toj no.
Q9: Lub sijhawm them nyiaj twg koj tau txais?
A: Peb lees txais T / T, West union, L / C.
Q10: Yog tias qhov no yog qhov kev txiav txim me me, koj puas yuav xa cov khoom rau peb tus neeg sawv cev?
A: Yog, peb tau yug los daws teeb meem ntawm peb cov neeg siv khoom, peb yuav tau txais cov khoom zoo rau koj tus neeg sawv cev lub tsev khaws khoom thiab xa cov duab rau koj.
Q11: Koj puas tsuas yog ua cov ntawv tiaj tus? Kuv xav ua ib qho fabrication rau kuv qhov project tshiab.
A: Tsis yog, peb tsuas yog tsim cov hlau stainless tiaj tus ntawv kho qhov chaw, tib lub sijhawm, peb tsim cov khoom siv hlau tiav raws li tus neeg siv khoom kos duab thiab kev npaj, peb cov kws tshaj lij yuav saib xyuas tus so.
Q12: Muaj pes tsawg coutries koj twb exported?
A: Exported rau ntau tshaj 50 lub teb chaws feem ntau yog los ntawm America, Russia, UK, Kuwait, Egypt, Iran,
Qaib ntxhw, Jordan, thiab lwm yam.
Q13: Kuv tuaj yeem tau txais qee cov qauv li cas?
A: Cov qauv me me hauv khw thiab tuaj yeem muab cov qauv dawb. Catalgue muaj, feem ntau
qauv peb muaj npaj cov qauv hauv Tshuag. Customized kuaj yuav siv li 5-7 hnub.
Q14: Kev xa khoom yog dab tsi?
A: Qauv xaj lub sijhawm xa khoom yog 5-7 hnub. Lub thawv xaj yog li 15-20 hnub.
Q15: Dab tsi yog daim ntawv thov txog koj cov khoom?
A: 1.elevator qhov rooj / chav tsev lossis thiab escalator's side-wall.
2. Phab ntsa cladding sab hauv lossis sab nraum lub rooj sib tham / tsev noj mov.
3.Facade thaum cladding tshaj ib yam dab tsi, zoo li txhua kab nyob rau hauv qhov chaw tos txais.
4.Ceiling nyob rau hauv lub supermarket. 5.Txoj kev kos duab hauv qee qhov chaw lom zem.
Q16: Koj tuaj yeem lav rau cov khoom no / tiav ntev npaum li cas?
A: Xim lav rau ntau tshaj 10 xyoo. Thawj cov ntaub ntawv pov thawj zoo tuaj yeem
muab.
