Chitsulo chachitsulo cha ASTM A213 T9 Alloy

Wopanga Machubu Otenthetsera ndi Kutentha Kwambiri - Womic Steel

1. Chidule cha ASTM A213 T9 Alloy Steel Chube

Chitsulo chachitsulo cha ASTM A213 T9 chopangidwa ndi aloyindi chitsulo cha chromium-molybdenum alloy chomwe chimapangidwira makamakamalo ochitira ntchito kutentha kwambiri komanso kuthamanga kwambirimonga ma boiler, ma superheater, ndi ma heat exchanger. Zipangizozi zili ndi chromium yambiri poyerekeza ndi ma alloy ena otsika, zomwe zimapangitsa kuti pakhale kukana kwa okosijeni, mphamvu yoyenda, komanso kukhazikika kwa kapangidwe kake pa kutentha kwakukulu.

TheChitsulo chachitsulo cha ASTM A213 T9 chopangidwa ndi aloyiimagwiritsidwa ntchito kwambiri m'mafakitale opanga magetsi, malo opangira mafuta, malo oyeretsera mafuta, ndi makina opangira mapaipi a mafakitale otentha kwambiri komwe kudalirika kwa nthawi yayitali ndikofunikira.

Monga wopanga waluso,Chitsulo cha Womicamapereka zinthu zapamwamba kwambiriMachubu achitsulo opanda msoko a ASTM A213 T9mogwirizana ndi zonseMiyezo ya ASTM A213 / ASME SA213Dongosolo lathu lopanga limatsatira njira zowongolera khalidwe ndipo limapereka kutsata kwathunthu kwa zinthu. Zogulitsa zimatha kuperekedwa ndiEN 10204 3.1 kapena EN 10204 3.2 satifiketi, ndipo machubu omwe amagwiritsidwa ntchito mu zida zopanikizika amatha kukwaniritsaZofunikira pa satifiketi ya PED 2014/68/EUkwa msika waku Europe.

Ndi zipangizo zopangira zinthu zapamwamba komanso unyolo wokhazikika woperekera zinthu zopangira, Womic Steel imatsimikizira khalidwe lodalirika, kusintha kosinthika, komanso nthawi yoperekera zinthu m'njira yopikisana pamapulojekiti apadziko lonse lapansi.

Chitsulo cha ASTM A213 T9 Alloy Chitsulo1

2. ASTM A213 T9 Tube Mafotokozedwe Opangira ndi Ma Dimensional Range

Ku Womic Steel,Machubu achitsulo a ASTM A213 T9 alloyAmapangidwa m'makulidwe osiyanasiyana kuti akwaniritse zofunikira za makina ophikira, zosinthira kutentha, ndi mapaipi opondereza mafakitale. Machubu onse awiri osalala omalizidwa kutentha komanso okokedwa ozizira amatha kuperekedwa kutengera kulondola kwa kukula ndi zosowa za ntchito.

Tebulo 1 - ASTM A213 T9 Kukula kwa Tube

Chizindikiro

Mtundu Wokhazikika

M'mimba mwake wakunja 12.7 mm – 219 mm
Kukhuthala kwa Khoma 1.5 mm - 30 mm
Kutalika Kwanthawizonse 6 m – 12 m
Kutalika Kwambiri Mpaka 18 m
Mtundu Wopanga Yopanda msoko Yotentha Yomalizidwa / Yozizira Yojambulidwa
Mkhalidwe wa Pamwamba Chakuda / Choviikidwa / Chophulitsidwa ndi Mfuti

Mphamvu yosinthika yopangira zinthu ku Womic Steel imatithandiza kukwaniritsa zonse ziwirimaoda ang'onoang'ono opangidwa mwamakonda ndi zofunikira zazikulu zoperekera mapulojekiti.

 

3. Kulekerera kwa Magawo a Machubu a Chitsulo a ASTM A213 T9 Alloy

Kuwongolera bwino miyeso ndikofunikira kwambiri pamakina opopera mphamvu.Machubu opanda msoko a ASTM A213 T9Zopangidwa ndi Womic Steel zimatsatira zofunikira za ASTM zololera kuti zitsimikizire kuti zikugwirizana ndi njira zopangira, kuwotcherera, ndi kukhazikitsa.

Gome 2 - Kulekerera kwa Miyeso

Chizindikiro

Kulekerera

M'mimba mwake wakunja ± 0.75%
Kukhuthala kwa Khoma ± 10%
Utali +3 mm / 0
Kuwongoka ≤1/1000 ya kutalika konse
Kuzungulira kwa mazira Mkati mwa kulekerera kwa OD

Kulekerera kokhwima kumeneku kumatsimikizira kutiMachubu achitsulo a ASTM A213 T9 alloyingagwiritsidwe ntchito moyenera m'makina amphamvu kwambiri.

 

4. Kapangidwe ka Mankhwala a Chitsulo cha ASTM A213 T9 Alloy

Kuchita kwaChitsulo chachitsulo cha ASTM A213 T9 chopangidwa ndi aloyiZimatsimikiziridwa makamaka ndi zinthu zake zophatikiza chromium ndi molybdenum, zomwe zimapereka kukana bwino kwambiri ku okosijeni ndi kusintha kwa ma creep pansi pa kutentha kwambiri.

Gome 3 - Kapangidwe ka Mankhwala a ASTM A213 T9

Chinthu

Kapangidwe (%)

Kaboni (C) ≤0.15
Manganese (Mn) 0.30 – 0.60
Phosphorus (P) ≤0.025
Sulfure (S) ≤0.025
Silikoni (Si) ≤0.50
Chromium (Cr) 8.00 – 10.00
Molybdenum (Mo) 0.90 – 1.10

Kuchuluka kwa chromium m'thupiChitsulo chachitsulo cha ASTM A213 T9 chopangidwa ndi aloyiimapereka kukana kwakukulu kwa kukula ndi okosijeni m'malo otentha kwambiri.

 

5. Kapangidwe ka Makina a Machubu a ASTM A213 T9

Magwiridwe antchito a makinaMachubu achitsulo a ASTM A213 T9 alloyzimaonetsetsa kuti kapangidwe kake kamakhala kodalirika pansi pa kupanikizika kwakukulu komanso kutentha kwambiri komwe kumapezeka kwambiri mu makina ophikira ndi osinthira kutentha.

Gome 4 - Katundu wa Makina

Katundu

Chofunikira

Kulimba kwamakokedwe ≥415 MPa
Mphamvu Yopereka ≥205 MPa
Kutalikitsa ≥30%
Kuuma ≤89 HRB

Makhalidwe a makina awa amalolaMachubu achitsulo a ASTM A213 T9 alloykuti asunge mphamvu ndi kukhazikika panthawi yogwira ntchito yotentha kwambiri kwa nthawi yayitali.

 

6. Njira Yopangira Machubu Opanda Msoko a ASTM A213 T9

Womic Steel opangaMachubu achitsulo opanda msoko a ASTM A213 T9pogwiritsa ntchito ukadaulo wapamwamba wopanga ndi kuwongolera njira mosamala.

Njira zodziwika bwino zopangira zinthu ndi izi:

Kuyang'anira Zinthu Zopangira → Kudula Ma Billet → Kutentha → Kuboola Motentha → Kuzungulira Kotentha → Kuchiza Kutentha → Kuwongola → Kuyesa Kosawononga → Kuyang'anira Komaliza → Kupaka

Ubwino waukulu wopanga ndi monga:

• Ma billets achitsulo cha alloy apamwamba kwambiri ochokera ku mphero zovomerezeka
• Zipangizo zoyendetsera zapamwamba zomwe zikutsimikizira kulondola kwa miyeso
• Kulamulira mwamphamvu zitsulo panthawi yotenthetsera ndi kupanga
• Kutha kutsata bwino kuchokera ku zinthu zopangira kupita ku chubu chomalizidwa

 

7. Zofunikira pa Chithandizo cha Kutentha

Kuchiza kutentha ndikofunikira kuti pakhale kapangidwe kabwino ka microstructure ndi makinaMachubu achitsulo a ASTM A213 T9 alloy.

Chithandizo cha kutentha chachizolowezi chimaphatikizapo:

• Kuphimba kwathunthu
• Kupopera kwa Isothermal
• Njira yoziziritsira yolamulidwa

Mankhwalawa amathandiza kuti kapangidwe ka tirigu kakhale kofanana komanso kuti kagwire bwino ntchito kutentha kwambiri.

 

8. Kuyang'anira ndi Kuyesa Machubu a ASTM A213 T9

ZonseMachubu achitsulo a ASTM A213 T9 alloyChopangidwa ndi Womic Steel chimayesedwa mokwanira kuti chitsimikizire kuti chikutsatira miyezo yapadziko lonse lapansi.

Kuyesa kwa Makina ndi Kuthupi

• Kuyesa kwa mphamvu
• Kuyesa kuuma
• Kuyesa kupyapyala
• Kuyesa kuwotcha
• Kuyesa kuthamanga kwa madzi

Kuyesa Kosawononga

• Kuyesa kwa Ultrasound (UT)
• Kuyesa kwa Eddy current (ET)
• Kuyesa tinthu ta maginito (MT) pakafunika

Chitsimikizo ndi Zolemba

Zogulitsa zitha kuperekedwa ndi:

Satifiketi Yoyesera ya EN 10204 3.1 Mill
EN 10204 3.2 Satifiketi Yoyang'anira ya Munthu Wachitatu
Zolemba zotsatizana ndi malamulo a PED 2014/68/EU

Kuwunika kwa chipani chachitatu kungakonzedwe kudzeraSGS, BV, TÜV, DNV, kapena mabungwe ena ovomerezeka owunikira.

 

9. Kugwiritsa ntchito machubu achitsulo a ASTM A213 T9 Alloy Steel

Chifukwa cha mphamvu yake yabwino kwambiri kutentha komanso kukana okosijeni,Chitsulo chachitsulo cha ASTM A213 T9 chopangidwa ndi aloyiimagwiritsidwa ntchito kwambiri mu zida zofunika kwambiri zamafakitale.

Ntchito zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo:

• Machubu a boiler a fakitale yamagetsi
• Machubu a Superheater ndi reheater
• Zosinthira kutentha kwa mafuta
• Mapaipi otentha kwambiri
• Zipangizo zoyeretsera zinthu

Zipangizozi ndizoyenera kwambiri malo omwe zipangizo zimagwira ntchito mosalekeza kutentha kwambiri.

Chitsulo cha ASTM A213 T9 Alloy Steel Chubu2

10. Ntchito Zokonza ndi Kupanga

Kuwonjezera pa kupereka machubu osaphika,Chitsulo cha Womicimapereka ntchito zokonza zinthu zopindulitsa kwaMachubu achitsulo a ASTM A213 T9 alloykukwaniritsa zofunikira za polojekiti.

Ntchito zomwe zilipo zikuphatikizapo:

• Kupinda ndi kupanga machubu
• Machubu opindika a U-bend a zosinthira kutentha
• Kukonza ndi kudula mwaluso
• Kukonza zida za mapaipi
• Kusonkhanitsa mapaipi

Maluso okonza zinthu awa amalola makasitomala kulandirazida zokonzeka kuyikidwa, kuchepetsa nthawi yopangira pamalopo.

 

11. Mphamvu Yopangira ndi Ubwino Wotumizira

Womic Steel imasunga mphamvu zopanga zinthu zambiriMachubu achitsulo a ASTM A213 T9 alloychothandizidwa ndi zinthu zopangira zokhazikika komanso zida zopangira zapamwamba.

Ubwino waukulu ndi monga:

• Mizere yayikulu yopanga machubu opanda msoko
• Kupereka kwa billet yachitsulo chokhazikika
• Njira yowongolera khalidwe molimbika
• Ndondomeko yosinthira nthawi yopangira zinthu

Nthawi yodziwika bwino yopangira ndiMasiku 15–35 kutengera zomwe zalembedwa pa oda.

Chofunika kwambiri,Womic Steel ilibe kuchuluka kocheperako koyitanitsa, ndipo ngakhalemaoda a chidutswa chimodzi akhoza kulandiridwa, zomwe zimapangitsa kuti pakhale kusinthasintha kwa zofunikira pa kugula ndi kukonza polojekiti.

 

12. Kulongedza ndi Kuyendera Padziko Lonse

Kuti zitsimikizire kuti mayendedwe ndi otetezeka,Machubu achitsulo opanda msoko a ASTM A213 T9amapakidwa pogwiritsa ntchito njira zotetezera zomwe zimatumizidwa kunja.

Zosankha zoyikapo zinthu zikuphatikizapo:

• Mipando yokhala ndi zingwe zachitsulo
• Mabokosi amatabwa oyenera kunyanja
• Zipewa zapulasitiki
• Chophimba mafuta choletsa dzimbiri
• Kukulunga kosalowa madzi

Ndi chidziwitso chachikulu pa ntchito zotumizira katundu padziko lonse lapansi, Womic Steel imapereka njira zotumizira katundu bwino kudzera mukatundu wa panyanja, mayendedwe a sitima, ndi mayendedwe amitundu yosiyanasiyana, kuonetsetsa kuti zinthu zifika pa nthawi yake padziko lonse lapansi.

ASTM A213 T9 Alloy Steel Chubu3

13. Chifukwa Chake Sankhani Chitsulo cha Womic cha Machubu a ASTM A213 T9

Monga wopanga komanso wogulitsa machubu achitsulo cha alloy,Chitsulo cha Womicimapereka kuphatikiza kwa ukatswiri waukadaulo, kuthekera kopanga zinthu, komanso kutumiza zinthu modalirika.

Mphamvu zathu zikuphatikizapo:

• Kutsatira kwathunthu malamuloMiyezo ya ASTM A213 / ASME SA213
Kupereka kovomerezeka kwa PED kwa mapulojekiti a zida zopanikizika
Zolemba zowunikira za EN 10204 3.1 / 3.2
• Malo oyesera ndi kuwunika apamwamba
• Kuchuluka kwa oda yosinthasintha komanso yankho lachangu
• Ntchito zopangira ndi kukonza makina mwamakonda
• Mphamvu yolimba yopangira zinthu komanso nthawi yokhazikika yoperekera zinthu

Ubwino uwu umalola Womic Steel kuthandiza makasitomala padziko lonse lapansi mumapulojekiti opanga magetsi, petrochemical, ndi mafakitale.

 

14.Machubu Opanda Msoko a Chitsulo cha ASTM A213 Alloy - Kukula kwa Kupanga

Womic Steel opangaMachubu Opanda Msoko a ASTM A213 Giredi T5, ASTM A213 Giredi T9, ndi ASTM A213 Giredi T11 Alloy Steelmumitundu yosiyanasiyana ya mainchesi ndi makulidwe a khoma oyenera ma boiler, zosinthira kutentha, ndi ntchito yotenthetsera kutentha kwambiri.

Tebulo Lopanga Kukula Koyenera

Kukula kwa Chitoliro Chodziwika (NPS)

Chidutswa cha Kunja (OD)

Kukhuthala kwa Khoma Komwe Kulipo (Ndandanda)

Mafotokozedwe Akatundu

1/2″ NB 21.3 mm SCH 20 / 30 / 40 / 80 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy
3/4″ NB 26.7 mm SCH 20 / 30 / 40 / 80 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy
1″ NB 33.4 mm SCH 20 / 30 / 40 / 60 / 80 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy
1 1/4″ NB 42.2 mm SCH STD / SCH 40 / SCH 80 / SCH 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 Alloy
1 1/2″ NB 48.3 mm SCH STD / SCH 40 / SCH 80 / SCH 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 Alloy
2″ NB 60.3 mm SCH 20 / 40 / 60 / 80 / 100 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
2 1/2″ NB 73 mm SCH STD / SCH 40 / SCH 80 / SCH 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
3″ NB 88.9 mm SCH STD / SCH 40 / SCH 80 / SCH 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
4″ NB 114.3 mm SCH 20 / 40 / 60 / 80 / 100 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
5″ NB 141.3 mm SCH STD / SCH 40 / SCH 80 / SCH 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
6″ NB 168.3 mm SCH 20 / 40 / 60 / 80 / 100 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
8″ NB 219.1 mm SCH 20 / 40 / 60 / 80 / 100 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
10″ NB 273 mm SCH 20 / 40 / 80 / 120 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy
12″ NB 323.9 mm SCH 20 / 40 / 80 / 120 / 160 Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

 

Mafotokozedwe onsewa aperekedwa ngatiMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy, Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 AlloyndiMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloykutengera zofunikira pa polojekiti.

 

15. ASTM A213 Alloy Steel Grades Comparison Table

Magiredi osiyanasiyana mkati mwaMachubu Opanda Msoko a Chitsulo cha ASTM A213 Alloymuyezo umapereka kuchuluka kwa chromium ndi molybdenum kosiyanasiyana kuti kukhale kolimba kutentha kwambiri komanso kukana dzimbiri.

Tebulo Loyerekeza Zinthu

Giredi

Zinthu Zazikulu Zopangira Alloying

Kukana Kwachizolowezi kwa Kutentha

Zinthu Zofunika Kwambiri

Mapulogalamu Odziwika

ASTM A213 T5 Cr-Mo Aloyi Chitsulo Kufikira 600°C Kukana kwabwino kwa okosijeni Maboiler, osinthira kutentha
ASTM A213 T9 Aloyi Wapamwamba wa Chromium Kufikira 650°C Mphamvu yokwera bwino Machubu a fakitale yamagetsi
ASTM A213 T11 1.25Cr-0.5Mo Aloyi Kufikira 580°C Mphamvu yabwino kwambiri yotentha Machubu a Superheater ndi boiler
ASTM A213 T22 2.25Cr-1Mo Aloyi Kufikira 650°C Kukana kwakukulu Mapaipi a siteshoni yamagetsi
ASTM A213 T91 9Cr-1Mo Aloyi Kufikira 700°C Kukana kwapamwamba kwa kukwawa Ma boiler ofunikira kwambiri

Pakati pa zinthu zimenezi,Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy, Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 AlloyndiMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloyamagwiritsidwa ntchito kwambiri mumachubu a boiler, machubu a superheater, ndi makina a chubu chosinthira kutentha.

 

16Machubu a Chitsulo cha ASTM A213 Alloy Keyword Matrix

Matrix otsatirawa amathandiza injini zosakira ndi mainjiniya kuzindikira maumboni omwe amagwiritsidwa ntchito kwambiriMachubu Opanda Msoko a Chitsulo cha ASTM A213 Alloy.

ASTM A213 Tube Kukula kwa Keyword Matrix

1/2″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy

3/4″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy

1″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 Alloy

1 1/2″ NB mu Kukhuthala Ndondomeko 20, Ndondomeko 30, Ndondomeko STD, Ndondomeko 40, Ndondomeko 60, Ndondomeko 80, Ndondomeko 100, Ndondomeko 120, Ndondomeko 160, Ndondomeko XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 Alloy

2″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

3″ NB mu Kunenepa Ndondomeko 20, Ndondomeko 30, Ndondomeko STD, Ndondomeko 40, Ndondomeko 60, Ndondomeko 80, Ndondomeko 100, Ndondomeko 120, Ndondomeko 160, Ndondomeko XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

4″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

6″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

8″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

10″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

12″ NB mu Kukhuthala Ndandanda 20, Ndandanda 30, Ndandanda STD, Ndandanda 40, Ndandanda 60, Ndandanda 80, Ndandanda 100, Ndandanda 120, Ndandanda 160, Ndandanda XXS muMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloy

Mndandanda wazinthu zazikuluzi zimathandiza makasitomala kupeza mosavuta zomwe zilipoMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T5 Alloy, Machubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T9 AlloyndiMachubu Opanda Msoko a Chitsulo cha ASTM A213 Giredi T11 Alloykuchokera ku Womic Steel.

 

Timadzitamandira ndintchito zosintha mwamakonda, kupanga mwachangundinetiweki yotumizira padziko lonse lapansi, kuonetsetsa kuti zosowa zanu zikukwaniritsidwa molondola komanso mwaluso.

Webusaiti: www.womicsteel.com

Imelo: sales@womicsteel.com

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Nthawi yotumizira: Mar-11-2026