Tsiku Lofalitsidwa: Julayi 7, 2026
Wolemba: Hu Yanwei, Katswiri wa Zaukadaulo wa Zachitsulo za Cymber
Yankho Lachangu
Wogulitsa chubu cha cupronickel wodalirika ayenera kuthandiza ogula kutsimikizira mulingo woyenera wa mkuwa ndi nickel, muyezo wa chubu, m'mimba mwake wakunja, makulidwe a khoma, kutalika, momwe pamwamba pake palili, njira yowunikira, satifiketi ya zinthu ndi kulongedza koyenera kunyanja asanagule zambiri. Pa makina ozizira a m'nyanja, ma condenser ndi ma heat exchanger, ogula nthawi zambiri amayerekezera C70600 / 90-10 copper-nickel ndi C71500 / 70-30 copper-nickel malinga ndi chiopsezo cha dzimbiri, momwe madzi amayendera, kuthamanga, kutentha ndi bajeti ya polojekiti.C70600 ndi C71500 chubu cha aloyi cha mkuwa-nickelzodulira mwamakonda komanso kugwiritsa ntchito madzi a m'nyanja m'mafakitale.
Chifukwa Chake Machubu a Cupronickel Ndi Ofunika M'madzi a M'nyanja ndi Mapulojekiti a Condenser
Machubu a Cupronickel amagwiritsidwa ntchito kwambiri m'mizere yozizira ya m'nyanja, ma condenser, ma heat exchanger, zida za m'mphepete mwa nyanja, makina ochotsera mchere m'madzi ndi kupanga zombo chifukwa ma alloy a mkuwa ndi nickel amatha kupanga filimu yoteteza pamwamba pamadzi. Izi zimapangitsa kuti ikhale yoyenera kuposa mkuwa wamba kapena mkuwa m'malo ambiri okhala ndi chloride yambiri.
Komabe, ogula sayenera kugwiritsa ntchito chubu chilichonse cha mkuwa ndi nickel ngati chinthu chomwecho. Chubu chomwe chimagwiritsidwa ntchito mu condenser yoyera ya madzi a m'nyanja chingakhale ndi zofunikira zosiyana ndi chubu chomwe chimagwiritsidwa ntchito mu zida za m'nyanja, madzi amchere, madzi oipitsidwa a m'mphepete mwa nyanja kapena makina ozizira kwambiri.
Musanasankhewogulitsa chubu cha cupronickel, ogula ayenera kutsimikizira zinthu zitatu choyamba: malo enieni ogwirira ntchito, giredi yofunikira ya mkuwa ndi nickel, ndi muyezo wowunikira womwe umavomerezedwa ndi mainjiniya wa polojekiti.
Yambani ndi Kugwiritsa Ntchito, Osati Mtengo Wokha
Pa ntchito za madzi a m'nyanja ndi ma condenser, mtengo wotsika kwambiri nthawi zonse siwosankha bwino kwambiri. Kulephera kwa chubu kungayambitse kutuluka kwa madzi, kuzimitsa, kuipitsidwa, ndalama zosinthira ndi kuchedwa kwa ntchito. Wopereka wabwino ayenera kumvetsetsa momwe chubucho chidzagwiritsidwire ntchito, osati kungowerengera kulemera kwake.
| Kugwiritsa ntchito | Nkhawa yodziwika bwino kwa ogula | Zoyenera kutsimikizira musanayitanitse |
|---|---|---|
| Njira yoziziritsira madzi a m'nyanja | Kudzimbiritsa, kukokoloka kwa nthaka ndi moyo wautali wa ntchito | Giredi, liwiro la kuyenda kwa madzi, makulidwe a khoma ndi momwe madzi alili |
| Mtolo wa chubu cha Condenser | Kusamutsa kutentha ndi kupewa kutayikira | Kulekerera kwa OD, makulidwe a khoma, kuwongoka ndi mayeso a eddy current |
| Chosinthira kutentha | Magwiridwe antchito a kutentha ndi chitetezo cha kuthamanga kwa magazi | Kukula kwa chubu, ukhondo, mayeso a kuthamanga kwa magazi ndi satifiketi |
| Dongosolo lomanga zombo | Zinyalala za m'nyanja ndi zikalata zotumizira kunja | C70600 / C71500 grade, MTC, kulongedza ndi kutsata |
| Zipangizo za m'mphepete mwa nyanja | Madzi a m'nyanja ovuta komanso ovuta kukonza | Njira yolimba kwambiri, mulingo wowunikira komanso kuthekera kopereka zinthu kwa nthawi yayitali |
Kuti mudziwe zambiri zokhudza zinthu zopangidwa ndi mkuwa ndi nikeli, ogula angawerengenso nkhani ya CYMBER Metal yokhudzazitsulo za mkuwa ndi nickel zogwiritsira ntchito pamavuto a m'nyanja ndi m'mphepete mwa nyanja.
Ndi mtundu uti wa Cupronickel womwe ogula ayenera kusankha?
Njira ziwiri zomwe zimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito madzi a m'nyanja ndi ma condenser ndi C70600 ndi C71500. Mu kugula kwa ku China ndi mayiko ena, ogula amatha kuwonanso mawu monga B10, B30, 90/10 copper-nickel ndi 70/30 copper-nickel.
C70600 / 90-10 Cupronickel Chubu
C70600, yomwe nthawi zambiri imatchedwa 90/10 copper-nickel kapena B10, ndi njira yodziwika bwino yopangira mapaipi amadzi a m'nyanja, ma condenser ndi makina oziziritsira madzi a m'nyanja. Imapereka njira yothandiza yolimbana ndi dzimbiri la madzi a m'nyanja, kutentha, kapangidwe kake, komanso mtengo wake.
Ogula nthawi zambiri amasankha C70600 pamene malo ogwirira ntchito akugwirizana ndi madzi a m'nyanja koma osati amphamvu kwambiri. Pa mapulojekiti ambiri omanga zombo, ma condenser ndi ma cooling line, ndiye giredi yoyamba kuwunika.
CYMBER Metal yafotokozanso nkhaniyi m'nkhaniyiB10 Cupronickel 90/10 ya machitidwe a madzi a m'nyanja.
C71500 / 70-30 Cupronickel Chubu
C71500, yomwe nthawi zambiri imatchedwa 70/30 copper-nickel kapena B30, ili ndi nickel yochuluka kuposa C70600. Nthawi zambiri imaganiziridwa pamene malo okhala m'madzi a m'nyanja ndi ovuta kwambiri, pulojekitiyi ili ndi chiopsezo chachikulu cha dzimbiri, kapena wogula akufunika kukana mwamphamvu m'malo ovuta a m'nyanja.
Kusinthanitsa nthawi zambiri kumakhala mtengo. C71500 ikhoza kukhala yokwera mtengo kuposa C70600, kotero ogula ayenera kuisankha kutengera zosowa zaukadaulo, osati ngati "zinthu zabwino" zokha.
| Giredi | Dzina lodziwika bwino | Kagwiritsidwe ntchito kawirikawiri | Ubwino wa wogula | Chenjezo kwa wogula |
|---|---|---|---|---|
| C70600 | 90/10 CuNi, B10 | Kuziziritsa madzi a m'nyanja, zoziziritsira, mapaipi a m'nyanja | Kukana dzimbiri moyenera komanso mtengo wake | Tsimikizani momwe madzi alili komanso makulidwe a khoma |
| C71500 | 70/30 CuNi, B30 | Madzi a m'nyanja ovuta, m'mphepete mwa nyanja, chiopsezo chachikulu cha dzimbiri | Kukana kwamphamvu kwa madzi a m'nyanja | Mtengo wapamwamba wa zinthu |
| C70400 / magiredi ofanana a CuNi | Nikeli wa mkuwa ndi nikeli wokhazikika pa ntchito | Makina opangidwa ndi madzi a m'nyanja kapena mafakitale | Zingafanane ndi zojambula zapadera | Muyenera kutsimikizira muyezo ndi kapangidwe kake |
| Zosankha za C71640 / CuNi zowonjezera | Kalasi yapadera ya mkuwa ndi nickel | Kugwiritsa ntchito ukadaulo kovuta kwambiri | Kusinthasintha kwakukulu kwa ntchito | Ikufunika chitsimikizo chomveka bwino chaukadaulo |
Ogula akatumiza ma RFQ, ndi bwino kutchula giredi yeniyeni m'malo molemba "chubu cha cupronickel" chokha. Giredi yomveka bwino imapewa chisokonezo pakati pa zinthu za 90/10 ndi 70/30.
Zimene Wogulitsa Tube Wodalirika wa Cupronickel Ayenera Kutsimikizira
Katswiri wopereka chithandizo sayenera kungotumiza mtengo wokha. Pa maoda a condenser ndi machubu a madzi a m'nyanja, wogulitsayo ayenera kuthandiza kutsimikizira tsatanetsatane waukadaulo womwe umakhudza nthawi yogwirira ntchito ndi kukhazikitsa.
| Chinthu choyang'ana | Chifukwa chake ndikofunikira | Wogula ayenera kufunsa |
|---|---|---|
| Gulu la zinthu | C70600 ndi C71500 zimagwira ntchito mosiyana | "Kodi mungatsimikizire kapangidwe ka mankhwala ndi mtundu wake?" |
| Muyezo wa chubu | Mapulojekiti osiyanasiyana angafunike miyezo yosiyana | "Ndi muyezo uti womwe chubu chanu chingatsatire?" |
| OD ndi makulidwe a khoma | Zimakhudza kusamutsa kutentha, kupanikizika ndi kuyika | "Ndi kulolerana kotani komwe mungalamulire?" |
| Utali wa chubu | Zimakhudza kuyika ndi kulongedza | "Kodi mungapereke kutalika kokhazikika kapena kutalika kodulidwa mwamakonda?" |
| Mkhalidwe wa pamwamba | Zimakhudza ukhondo ndi khalidwe la dzimbiri | "Kodi malo a ID/OD ndi oyera komanso opanda zilema?" |
| Njira yowunikira | Amachepetsa kutayikira kwa madzi ndi chiopsezo cha batch | "Kodi mungapereke mayeso a eddy current kapena pressure?" |
| Satifiketi | Chofunika kuti polojekiti ivomerezedwe | "Kodi mungapereke mayeso a MTC kapena a chipani chachitatu?" |
| Kutumiza katundu kunja | Amaletsa kuwonongeka ndi kuipitsidwa | "Kodi machubu adzapakidwa bwanji kuti atumizidwe panyanja?" |
Pa mapulojekiti omwe amafunikira kudula, kufananiza zigawo kapena makina ena, CYMBER Metal imatha kuthandizira ntchito zina zofananira kudzera muZigawo zopangidwa ndi makina a CNC ndi malo ochitira machining molondola.
Kufufuza Kofunika Kwambiri kwa Ogula Ma Tube a Condenser
Machubu opopera mpweya ali ndi zofunikira zolimba kuposa machubu ambiri achitsulo omwe amagwiritsidwa ntchito nthawi zambiri. Vuto laling'ono la makulidwe a khoma, kuwongoka kapena khalidwe la pamwamba lingayambitse mavuto pakupanga kapena kutayikira kwa madzi.
Chongani OD ndi Kulekerera kwa Kukhuthala kwa Khoma
Mapaketi a chubu cha condenser amafunika kukula kofanana kwa kunja ndi makulidwe a khoma. Ngati kulekerera kwa chubu sikukhazikika, kufutukuka kwa chubu, kutseka ndi kusamutsa kutentha kungakhudzidwe.
Ogula ayenera kutsimikizira izi:
- Kunja kwa m'mimba mwake ndi kulekerera
- Kukhuthala kwa khoma ndi kulekerera
- Chofunikira pakuwongoka
- Kutalika kokhazikika kapena kutalika kosasinthika
- Mkhalidwe womaliza
- Kuyeretsa chubu musanapake
Yang'anani pamwamba pa chubu ndi ukhondo wake
Pogwiritsa ntchito condenser ndi heat exchanger, pamwamba ndi mkati ziyenera kuyang'aniridwa. Kukanda pamwamba, mabowo, mafuta otsala, mabowo kapena kuipitsidwa kungakhale malo owopsa panthawi yogwiritsira ntchito.
Ngati odayo ndi ya pulojekiti yaikulu ya condenser, ogula ayenera kupempha zithunzi zowoneka bwino zowunikira, kutsimikizira zitsanzo kapena kuyang'aniridwa ndi anthu ena musanatumize katundu wambiri.
Yang'anani Zofunikira pa Kuyesa
Kuwunika komwe kumachitika kawirikawiri kungaphatikizepo kuyang'ana mbali, kuyang'ana m'maso, kapangidwe ka mankhwala, mawonekedwe a makina, kuyesa kwa eddy current, kuyesa kwa hydrostatic, kuyesa kwa pneumatic, kuyesa kwa flattening kapena kuyesa kwa flaring, kutengera muyezo wa polojekiti.
Wogulitsa safunika kuchita mayeso onse pa oda iliyonse, koma kuchuluka kwa mayeso kuyenera kufanana ndi zomwe wogula akufuna.
Macheke Ofunika Kwambiri kwa Ogula Makina a Madzi a M'nyanja
Madzi a m'nyanja ndi osavuta kuwazindikira chifukwa chubucho chimakhudzidwa ndi kloridi, mpweya, zochita zamoyo, zinthu zolimba zomwe zimapachikidwa komanso nthawi zina madzi oipitsidwa. Kuchuluka kwa zinthu ndikofunikira, koma kuyika ndi momwe madzi alili n'kofunikanso.
Musanyalanyaze Kuthamanga kwa Madzi
Kuthamanga kwambiri kwa madzi kungapangitse kuti madzi ayambe kukokoloka. Kuthamanga kochepa kwambiri kapena kosayenda bwino kungayambitsenso dzimbiri m'malo ena. Ogula ayenera kufunsa mainjiniya wa polojekiti kuti atsimikizire momwe madzi akugwirira ntchito asanamalize kukulitsa kalasi ndi makulidwe a khoma.
Pewani Mavuto Okhudzana ndi Zinthu Zosiyanasiyana
Pamene machubu a mkuwa ndi nickel alumikizana ndi zitsulo zina, ogula ayenera kusamala ndi chiopsezo cha dzimbiri la galvanic, kugwirizana kwa welding/brazing ndi kapangidwe ka makina. Wogulitsa ayenera kumvetsetsa ngati chubucho chidzagwiritsidwa ntchito ndi machubu, ma flange, zolumikizira kapena zigawo zina za alloy.
Kwa ogula omwe amafunikiranso zida zokhudzana ndi aloyi ya mkuwa, CYMBER Metal'schithandizo chabwino cha makinazingathandize ndi zigawo zapadera zochokera pa zojambula.
Tsimikizirani Kulongedza kwa Ntchito Zapamadzi
Machubu a Cupronickel ayenera kupakidwa kuti apewe kupindika, kugwedezeka, kuwonongeka kwa chinyezi komanso kuipitsidwa pamwamba pa nthaka panthawi yotumiza kunja. Pa machubu aatali kapena machubu a condenser, mabokosi amatabwa, chitetezo cha kumapeto, kuwongolera chinyezi ndi zilembo zomveka bwino ndizofunikira.
Zachitsulo za CYMBERmalo osungiramo katundu okonzekakuthandizira kukonzekera zinthu, kusamalira maoda ndi kupereka zinthu zogulira kunja kwa mafakitale.
Zikalata Zomwe Ogula Ayenera Kupempha Asanayambe Kuitanitsa Zambiri
Asanatsimikizire oda yochuluka, ogula ayenera kupempha zikalata zomwe zimatsimikizira zomwe zili mkati mwake ndikuchepetsa chiopsezo cha polojekiti.
| Chikalata kapena umboni | Cholinga |
|---|---|
| Satifiketi Yoyesera Zinthu | Imatsimikizira kalasi, chemistry ndi deta yamakina |
| Lipoti lowunikira magawo | Imatsimikizira OD, makulidwe ndi kutalika kwa khoma |
| Zithunzi zowunikira pamwamba | Zimathandiza kuwona zolakwika zomwe zimawoneka musanatumize |
| Zithunzi zolongedza | Imatsimikizira zambiri zotumizira kunja ndi zolembera |
| Chitsimikizo chokhazikika | Amaonetsetsa kuti chubucho chikutsatira zofunikira za polojekitiyi |
| Lipoti lowunikira la chipani chachitatu | Zothandiza pa maoda apamwamba kapena olamulidwa ndi polojekiti |
Kwa maoda akuluakulu kapena obwerezabwereza, ogula ayeneranso kufunsa ngati wogulitsayo angathe kusunga mtundu wa batch womwewo komanso kupereka chithandizo cha nthawi yayitali.njira yogwirira ntchitoYapangidwira ogula ochokera kumayiko ena omwe akufuna kusankha zinthu, kupereka mtengo, kukonza ndi kutumiza kunja.
Momwe Mungayerekezere Ogulitsa Ma Tube a Cupronickel
Wogulitsa wamphamvu si amene ali ndi mtengo wotsika kwambiri wokha. Ogula ayenera kuyerekeza mayankho aukadaulo, kufananiza zinthu, luso lowunikira komanso liwiro lolumikizirana.
| Khalidwe la ogulitsa | Mulingo woopsa | Tanthauzo lake |
|---|---|---|
| Ma quotes okha ndi kulemera popanda kufunsa ntchito | Chiwopsezo chachikulu | Mwina simungamvetse zofunikira za condenser kapena madzi a m'nyanja |
| Sindingathe kutsimikizira C70600 vs C71500 | Chiwopsezo chachikulu | Kusagwirizana kwa magiredi kungachitike |
| Amapereka magiredi, kukula, muyezo komanso njira zoyesera | Chiwopsezo chochepa | Yoyenera kwambiri kugula ntchito |
| Mungakambirane za kudula, kulongedza ndi zikalata | Chiwopsezo chochepa | Zabwino kwambiri potumiza kunja ndi maoda ambiri |
| Ali ndi chithandizo chogwirizana ndi zinthu ndi makina | Chiwopsezo chochepa | Zosavuta kusamalira zosowa zovuta zopezera zinthu |
Pa ntchito zokhudzana ndi mbale, mapepala kapena mitundu ina ya nickel yamkuwa, ogula angayang'anenso CYMBER Metal'sZosankha za CuNi ndi pepala la cupronickel kapena mbalemonga gawo la phukusi lalikulu la zinthu.
Mndandanda wa RFQ wa Maoda a Tube ya Cupronickel
Kuti ogula apeze mtengo wolondola, ayenera kuphatikiza izi mu RFQ:
| Tsatanetsatane wa RFQ | Chitsanzo |
|---|---|
| Gulu la zinthu | C70600, C71500, B10, B30, 90/10 CuNi, 70/30 CuNi |
| Muyezo | ASTM, EN, DIN, JIS kapena muyezo wokhudzana ndi polojekiti |
| Kukula kwa chubu | OD, makulidwe ndi kutalika kwa khoma |
| Kuchuluka | Zidutswa, mamita kapena makilogalamu |
| Kugwiritsa ntchito | Kuziziritsa madzi a m'nyanja, choziziritsira mpweya, chosinthira kutentha, kupanga zombo |
| Chofunikira pamwamba | Malo oyera, palibe mafuta, palibe mabala, palibe zilema zooneka |
| Chofunikira pa mayeso | MTC, mayeso a eddy current, mayeso a pressure, kuwunika kwa chipani chachitatu |
| Chofunikira pakulongedza | Chikwama chamatabwa, kulongedza katundu, chitetezo cha machubu |
| Chofunikira pakutumiza | Nthawi yofunikira yotsogolera ndi doko lopitako |
RFQ yonse imathandiza wogulitsayo kuyitanitsa mtengo mwachangu komanso kuchepetsa chiopsezo cholandira zinthu zolakwika.
Chifukwa Chake Ogula Amagwira Ntchito ndi CYMBER Metal
CYMBER Metal imapereka zinthu zamkuwa, zamkuwa, zamkuwa, CuCrZr, cupronickel ndi zitsulo zopangidwa mwapadera kwa ogula mafakitale. Pa ntchito zamadzi a m'nyanja ndi ma condenser, CYMBER Metal imatha kuthandiza ogula posankha magiredi, kudula mwamakonda, kulongedza katundu kunja ndi kulumikizana kwaukadaulo musanagule zinthu zambiri.
Pa mapulojekiti a chubu cha cupronickel, ogula angayambe kuchokera ku CYMBER Metal'sC70600 / C71500 chubu cha aloyi cha mkuwa ndi nikelikenako tsimikizirani kukula, muyezo, mayeso ndi tsatanetsatane wa kulongedza malinga ndi chithunzi cha polojekiti.
Ngati pulojekitiyi ikufunanso zinthu zokhudzana ndi mkuwa ndi nikeli, zida zopangidwa ndi makina kapena zikalata zotumizira kunja, CYMBER Metal ingathandize ogula kukonza phukusi la zinthuzo ndikuchepetsa chiopsezo chopeza zinthuzo.
Mapeto
Kusankha wogulitsa chubu cha cupronickel cha madzi a m'nyanja ndi ma condenser sikuti ndi kuyerekezera mitengo kokha. Ogula ayenera kutsimikizira mtundu wake, muyezo wa chubu, makulidwe a khoma, momwe pamwamba pake palili, njira yowunikira, satifiketi ndi kulongedza katundu wotumizidwa kunja musanagule zambiri.
C70600 nthawi zambiri ndi malo oyambira abwino kwambiri pamakina ambiri amadzi a m'nyanja ndi ma condenser, pomwe C71500 ingaganizidwe ngati ili ndi nyengo yovuta kwambiri m'nyanja. Njira yotetezeka kwambiri ndiyo kufananiza mulingo ndi kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito, osati dzina la chinthucho lokha.
Kuti mupeze mtengo wa polojekiti, ogula akhoza kulankhulana ndi CYMBER Metal kudzera mutsamba lovomerezeka lolumikiziranandi zojambula, zofunikira komanso zofunikira pa kuchuluka.
FAQ
Kodi chubu cha cupronickel chomwe chili chabwino kwambiri pakugwiritsa ntchito m'madzi a m'nyanja ndi chiti?
C70600 / 90-10 copper-nickel imagwiritsidwa ntchito kwambiri pa ntchito zambiri zoziziritsira ndi zoziziritsira madzi a m'nyanja. C71500 / 70-30 copper-nickel ikhoza kusankhidwa pa ntchito zovuta kwambiri za madzi a m'nyanja kapena m'mphepete mwa nyanja. Chisankho chomaliza chiyenera kudalira mtundu wa madzi, momwe madzi amayendera, kuthamanga, kutentha ndi muyezo wa ntchito.
Kodi C70600 ndi yoyenera kugwiritsa ntchito machubu a condenser?
Inde, C70600 imagwiritsidwa ntchito kwambiri pa machubu otenthetsera ndi otenthetsera kutentha m'machitidwe okhudzana ndi madzi a m'nyanja. Ogula ayenerabe kutsimikizira kulekerera kwa OD, makulidwe a khoma, momwe pamwamba pake palili, kulunjika kwake ndi zofunikira pakuyesa musanagule zinthu zambiri.
Kodi ndiyenera kufunsa chiyani kwa ogulitsa machubu a cupronickel ndisanayitanitse?
Funsani za mtundu wa zinthu, muyezo, OD, makulidwe a khoma, kutalika, momwe zinthu zilili pamwamba, njira yowunikira, satifiketi ya zinthu, njira yolongedza ndi nthawi yoperekera ntchito. Pa maoda a polojekiti, funsaninso ngati pali kuyang'anira kwa chipani chachitatu.
Kodi machubu a cupronickel angadulidwe mwamakonda?
Inde. Machubu a Cupronickel amatha kuperekedwa muutali wokhazikika kapena wodulidwa mwamakonda kutengera zomwe mukufuna. Ogula ayenera kupereka kutalika koyenera, momwe zinthu zilili komanso zofunikira pakulongedza mu RFQ.
Nchifukwa chiyani kulongedza katundu kunja ndikofunikira pa machubu a condenser?
Machubu a condenser amatha kuwonongeka chifukwa cha kupindika, kugwedezeka, chinyezi kapena kuipitsidwa pamwamba pa nthaka panthawi yotumizidwa kutali. Kulongedza bwino chikwama chamatabwa, kuteteza malekezero a chubu, zilembo ndi kuwongolera chinyezi kumathandiza kuchepetsa chiopsezo cholandirira.
Kodi ogula angachepetse bwanji chiopsezo asanagule chubu cha bulk cupronickel?
Ogula akhoza kupempha chitsanzo, kutsimikizira MTC, kuwonanso zithunzi zowunikira, kuwona kukula, kutsimikizira kulongedza ndikuvomerezana pakuwunika kwa anthu ena musanatumize katundu wambiri. RFQ yomveka bwino komanso zidziwitso zaukadaulo zovomerezeka ndi malo abwino oyambira.
Nthawi yotumizira: Julayi-07-2026