Illevesel 601 BW CODOKHANA NDI OKONDA KWAMBIRI KWAMBIRI

Ilcoloy 800ht Asthewm B564 Milandu Tili ndi mbiri yolimba mu malonda popanga mitundu yayikulu yamitundu yosiyanasiyana yomwe ingagwirizane ndi zofunikira za makasitomala athu. Timakhala ngati infolisoy ma fronges omwe ndi odalirika komanso apamwamba kwambiri. Timagwiritsa ntchito ndalama zotsogola komanso makina apamwamba popanga assowm B564 SIMIL N08800 Stuliloy ma fronges 800.

Pali miyezo yosiyanasiyana yophimba mitundu yosiyanasiyana ya ma flanges. A ANI B16.5 Morel din 2.4360 Flangeyani akhungu omwe ali ndi diameter kuyambira? mainchesi mpaka 48 muyezo uno.

Chromium yapamwamba, molybdenum ndi nayitrogeni imapangitsa kuti zikhale bwino kwambiri (zomwe zingachitike) zitsulo zokongoletsera ndi zotupa zosapanga dzimbiri, komanso kutentha kotsika kwambiri kuposa 50¡c.

Lembani 304 imalimba pang'ono kuposa 302 chifukwa cha zomwe zili pansi. Mtundu wa 304 umagwiritsidwa ntchito kwambiri pakugwiritsa ntchito ma polder potchera chifukwa kaboni wotsika kumapangitsa kuti pakhale mpweya wanji wa mpweya mu 800¡f - 1500¡f - 15001f pamzere popanda kufunikira kwa ntchito.

Zogulitsa zathu zimaphatikizapo mitundu yosiyanasiyana ya Intelses 718, Intelsel Alloy 601 Favories 718 Zithunzi Zazizindikiro za 818.

Nickel Anoy 400 ndi Monl 400, omwe amadziwikanso kuti ndi N04400 Nictal-Copy-Copy-Copy kukhala makamaka mwa atatu a Nickel ndi chachitatu. Nickel Anoy 400 amadziwika chifukwa chokana kusiyanasiyana, kuphatikiza alkalis (kapena asidi), madzi amchere, ma hydrofluoric acid. Kuyambira monoy 400 kapena Aloy 400 ndi chitsulo chozizira chogwira ntchito, chivomerezichi chimakhala cholimba, kuuma ndi mphamvu. Pogwira ntchito yozizira astm B164 SARD N04400 bar stock, alloy imayang'aniridwa ndi kupsinjika kwamakina, komwe kumapangitsa kusintha kwa micrestructuctuctution ya Alloy.

Invalsel 718 ndi alloy-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium yomwe imagwiritsidwa ntchito kwambiri pamapulogalamu apamwamba monga Aweslospace ndi majini agalu. Chimodzi mwazinthu zofunika kwambiri pakupanga a Ism B670 Invelve 718 ndiye kuti mbale yogubuduza. Pali mitundu iwiri yayikulu ya mbale za Intery18 zomwe zilipo pamsika: kuwotcha mbale zowombera.

Intelsel Aloy 718 imachitika, yomwe ndi yopenda yopanda mafuta. Makina ogwirira ntchito athu asanu ndi awiri a Iswex 718 omenyedwa akuyenera kukhala okhwima ndikugonjetsedwa momwe angathere.

FOSTELOLOY C2000 amagwiritsidwa ntchito m'mafakitale ambiri kuphatikizapo mafakitale a petrochemical, makonzedwe a mankhwala opanga mafuta, zophika zamafuta ndi zomera.

Iswees osawoneka bwino kwambiri a sing'anga osawoneka N06600 ndi Astm B167 ndi omwe amapangidwa kuti apirire kwambiri ndikubwera ndi chitsimikizo chachikulu.

Nilo Anoy 36, w.NR 1.3912, Inciar 36 ® ndi chitsulo chotsika kwambiri chomwe chili ndi 36% Nickel ndipo ali ndi gawo la kufalikira kwa gawo limodzi la chitsulo cha kaboni pafupifupi.

304 Nphwemba zopondapondazikulu zimapangidwa ndi chitsulo chosapanga dzimbiri, zinthu wamba komanso zodziwika bwino muzogwiritsidwa ntchito zambiri zamakampani zomwe zimafunikira kukana kuwonongeka ndi oxidation. Nyansiweli iyi ya S30400 imakonzedwa pogwiritsa ntchito makina apadera ndi njira, zomwe zikuwonetsetsa kuti ndi olondola komanso odalirika.

Sae 304 Chitsulo chopanda dzimbiri ndiye chitsulo chosapanga dzimbiri. Zitsulo zimakhala ndi zonse ziwiri zachitsulo (pakati pa 18% ndi 20%) ndi nickel (pakati pa 8% ndi 10,5%). Ndi chitsulo chosapanga dzimbiri. Zimakhala zochepa zamagetsi komanso zomwe zimayambitsa thupi kuposa chitsuloboni. Ndi maginito, koma ochepa mphamvu kuposa chitsulo. Ili ndi chipongwe chachikulu kuposa chitsulo chokhazikika ndipo chimagwiritsidwa ntchito kwambiri chifukwa cha kupangika komwe kumapangidwira mawonekedwe osiyanasiyana. [1]

Cholumikizira chopondera chimapangidwa ndi zitatu zolekanitsidwa komanso kudziyimira pawokha ngakhale zigawo zikuluzikulu; Makoma, ma gaskets, ndi oboola; omwe amasonkhana ndi zikopa zina, zoyenera. Zowongolera zapadera zimafunikira pakusankha ndikugwiritsa ntchito zonse zomwe zimakhala ndi cholumikizira, zomwe zili ndi zotayira zotayirira.

Nthawi zambiri N08367 imatchedwanso Al6xn Al6xn ndi kaboni yotsika, yoyera kwambiri, nulytel-molybdenum yolimbana ndi crevice.

Nickel Aloya Flange Airm A351 CF3M CF3M Miyezo ya Anoy Smoy Flange Innoy Flange Iskstoff nrstoff nr. 2.4668 Flange

ASTM A240 Mtundu 2205 Plate ndi duwa losapanga dzimbiri lomwe limagwiritsidwa ntchito kwambiri m'mafakitale, kufufuza kwamafuta ndi mafuta, ndi ukadaulo wamadzi, ndi ukadaulo wamadzi. Mapepala 2205 amapangidwa kuchokera ku kalasi ya SAGIS 2205, chitsulo chosapanga dzimbiri, chomwe chimaphatikizika ndi chitsulo champhamvu.

Chingwe chimakhala chachiwiri chomwe chimagwiritsidwa ntchito polumikizana pambuyo potalika. Ma flanges amagwiritsidwa ntchito ngati zolumikizira zolumikizira. Imapereka kusinthasintha kukonza. Flange imalumikiza chitoliro ndi zida ndi mavuvu osiyanasiyana. Kuledzera kumawonjezeredwa mu dongosolo lapaipi ngati kukonza pafupipafupi komwe kumafunikira pa ntchito yobzala.

Incoloy 825 ndi wokhazikika wowoneka bwino pa 940 ° C. Kapangidwe kakang'ono kwambiri kunapezeka pa 980 ° C. Magawo olemedwa kuposa pepala, Mzere ndi waya ziyenera kuthetsedwa kuti zithetse chidwi.

Cu ni alloy yopangidwa
Katundu wa Interseel 6001 ipangeni zinthu zomwe zimagwiritsidwa ntchito ndi mitundu yosiyanasiyana m'matenthedwe, kukonzanso kwa mankhwala, kuwonongeka kwa kuwonongeka, awespace ndi magetsi ankhondo. Komabe, aloy 601 sakulimbikitsidwa kuti agwiritsidwe ntchito mu kuchepetsa kwambiri, sulufa okhala ndi malo.

316l 1.4401 s31603 Chipika chosapanga dzimbiri ndi njira yolimba komanso yolimba yofananira yomwe imagwiritsidwa ntchito pazosiyanasiyana za mafakitale ndi malonda. Izi s31603 chitoliro chimapangidwa kuchokera pazinthu zapamwamba za 316l osapanga dzimbiri mosapanga dzimbiri mosapanga chipongwe, oxidation ndi chomata, zomwe zimapangitsa kuti zikhale zabwino m'malo mwazinthu zovuta kapena zovuta.

Aloy 800 wedy wedy timakhala ndi mbiri yolimba mu malonda popanga mitundu yosiyanasiyana ya mitundu yosiyanasiyana ya makasitomala athu. Timakhala ngati infolisoy ma fronges omwe ndi odalirika komanso apamwamba kwambiri. Timagwiritsa ntchito ndalama zotsogola komanso makina apamwamba popanga assowm B564 SIMIL N08800 Stuliloy ma fronges 800.

Al6xn ndi chitsulo chosapanga dzimbiri chosakhazikika ku chloride pansi, crevice kutukuka komanso kupsinjika kuwonongeka. Al6xn ndi Alloy a 6 wokhazikika womwe umapangidwa ndipo umagwiritsidwa ntchito m'malo ovuta. Ili ndi Nickel (24%), Molybdenum (6.3%), nayitrogeni ndi chromium yomwe imapangitsa kuti zisautso, chloride pansi. Al6xn imagwiritsidwa ntchito makamaka pokana zolimba komanso zopondera ku chlorisi. Ndi chitsulo chosapanga dzimbiri.

Mapaipi achitsulo osawoneka bwino amagwiritsidwa ntchito kwambiri m'mapaipi amadzimadzi, masitepe, opanga magetsi, magetsi, zojambula zamagetsi, zamagetsi, chitetezo cham'madzi. P91 chitsulo cha alloy chimagwiritsidwa ntchito makamaka pamakampani amphamvu. Zojambula zowoneka bwino, asme boiler komanso kukakamira kwa sitimayo kumachepetsa zinthu zomwe zimakhala ndi ma carbon mpaka ochepera 0,35%. Zitsulo za Alloy ndizabwino pakugwiritsa ntchito zomwe zimafunikira mphamvu zapamwamba, zolimba kapena zobvala bwino kukana kuposa ma crivate steel.

Imatha kupirira mankhwala osiyanasiyana osakhazikika komanso osasinthasintha, ndikuwonetsa kukana kwakukulu ndikumenya ndi Crevice pamaso pa chlorides ndi ma halides ena.

Nickel kutengera 800 inclooy chitoliro chomwe chimadziwika kuti ndi kukana bwino kuwonongeka. Makamaka kuyankhula, chisumbulu 800 chitoliro chimapereka kukana mokwanira zotsutsana ndi ma carburization onse komanso oxidation kutukula.

Asme B16.47 Ndege zopangidwa ndi masikono 26 "mpaka 60" mu 150, 300, 400, 600, 900 makalasi; Ngakhale asme B16.47 Series B Malawi ikupezeka mu 75, 150, 300, 400, 26 "mpaka 60, 600 maphunziro.

Astm Asme Sb 166 Inoy Intersel 600 Round Bar Serwin N06600 Bar Nickel Anoy Bar
Magalasi okhazikika - omwe adayikapo sayansi-nickel-cobalt matobala, Kovar Smows, ali ndi mzere wowonjezera wowonjezera wofanana ndi galasi lolimba mkati mwa kutentha kwina
Kupanga que b36.10 asme B36.32

Chitsito chopanda maziko cha 316 chakhala chinthu chofunikira kwambiri kwa gawo la mafakitale. Chitsulo ichi ndi chrome chimadziwika kuti ndikukana kwake kuvunda, komanso kukhazikika kwake. 316 Chitsulo chosapanga dzimbiri chimatha kupangidwa muzosaso komanso machubu owuma kuti akwaniritse zosowa zapadera za kasitomala.

Carbon Steel Bars & ndodo
Chitchaina (chosavuta)
Zimakhala ndi kukana bwino kuphwanya chifukwa cha kuwongolera kwa kaboni ndi kukula kwa tirigu, 601 tikulimbikitsidwa kuti mugwiritse ntchito madera omwe ali pamwamba 500 ¡ng.
Kutalika: Malinga ndi zomwe mukufuna. "

Kukula kwa malo okhala kuwononga kungafunike kuyamwa pambuyo potchere kapena kugwiritsa ntchito 304l. Mtundu 304l uli ndi zomwe zili ndi kaboni 0.03% kapena zochepa. Chivomerezo ichi chitha kugwiritsidwa ntchito ngati malo owala osakhudzidwa ndi kutukudwa kwamkatikati.

Se Dim Que la tuberia Tchimo ThuruA de Seora 800 Jer Ha, estirada e estrade greencia y Ruencia y Ruencua. La Adicion de Cromo hace las tuber a tubes sean akuletsa la prosion, mipreras Que el con testide on and conce curkiles.
Chitsulo chachitsulo
Scottish Gaelic
Chitsulo
Kunyumba »
Kurdish (Kurmanji)
Chitoliro chosapanga dzimbiri & chubu
ASTM A182 316L Spacer Run Arm Pergep
Nickel Anoney othamanga
Kupanga Rame B36.10 ASME B36.34
Chida chopangira chitoliro cha wedlel of Invor 601 Nicr15 Messies
Masamba osapanga dzimbiri & ma sheets & coils

Astm ASME SB 164 Monil 400 Round Bar Office N04400 Nickel Anoy Bar

Asme B36.19M ndiye wofanana ndendende ndi mapaipi achitsulo osapanga dzimbiri, zomwe zimafotokoza kukula kwake, kulolerana, ndi zomwe amapanga maenda owala komanso osaka.

Ma coil 625 amadziwika ndi kukana kwake kwabwino kwa oxidation, kutentha kwambiri komanso kutopa. ASTM B443 SANDO N06625 SIVELEILE imagwiritsidwa ntchito kwambiri mu anthospace, mankhwala kutengera ndi mafuta ndi mafakitale chifukwa champhamvu kwambiri.

Zitsulo za alloy ndi ndodo
Ictives 600 yozungulira ndi intoy-valkel-brad-cenel carburrization ndi kukana bwino kuwonongedwa kwakukulu. Zingwe zozungulira 600 zozungulira zimagwira ntchito kuyanika cl2 ndi mipweya ina yambiri yofananira ndi kutentha kwambiri. Alloy 600 bar ndi a chromial-cromiyal-cromiyal-cromiyal-chloride bwino oxidation ndi kukana ku chloride kuwonongeka kwa chloride kugwa, ukhondo wamadzi acid kumatentha.

Izi zimathandizira kuthana ndi sulufuric acid. Ilinso ndi mawu apamwamba kwambiri, kuti apititsenso kukana kwake kuti athe kugwiritsa ntchito mankhwala ndi njira zomwe zimapangidwa ndi mitsinje yolimba ndi mpweya wosungunuka.

Alloy 800 ndi a nickeum-chromiam almoy mphamvu ndi mphamvu yayikulu komanso kukana kwa oxidation ndi kutupa kwambiri. ASTM B407 SINE N08800 infoloy 800 WR. 1.4876 Chitoliro chowala bwino chimagwiritsidwa ntchito kwambiri pomanga zida zofuna kukana kuchuluka, kukana kutentha, mphamvu, komanso kukhazikika pakuchita nawo ntchito mpaka 1500 ° C).

Intelsel 718 imagwiritsidwanso ntchito m'mafakitale monga mafuta ndi kubowola kwa mafuta ndi kupanga kwamphamvu kwa owoneka bwino ku chloride polimbana ndi mavuto. M'mafakitale awa, a Ams 5663 agwiritsidwa ntchito popanga magawo osiyanasiyana monga maamwa, pampu zigawo ndi zinthu zabwino.

Lapper-nickel limaluntha mwachindunji pa chitolirochi ndipo nthawi zambiri chimagwiritsidwa ntchito ndi magetsi ogwiritsira ntchito, nthawi zambiri pamapulogalamu omwe amafunikira pafupipafupi. Zakhala bwino kwambiri mphamvu komanso kukhazikika, ndipo imagwirizana ndi kutukuka ndi kukokololoka m'madzi achilengedwe, kuphatikiza madzi am'madzi, madzi amtanda, ndi madzi opaka.

Mapewa a Duptux amakhala ndi kukana kwabwino kwambiri pakugwedezeka. Zitsulo izi zathandiza kuti pokana kutupa kwa chitsulo. Zitsulo zitha kugwiritsidwa ntchito m'njira zosiyanasiyana kutentha pamakampani.

Kupanga mu Monl 400 kumangirira asme B16.48
Owoneka bwino (Ba) amapangidwa ndi kuchiritsa kutentha (kuwongolera) chitsulo ndi ng'anjo yoyendetsedwa ndi mlengalenga. Pambuyo pa kutentha, chitsulo chimawoneka ngati chowoneka bwino, kalasi monga kupanda ubowo, komansonso kukhala ndi kupanda ungwiro komanso kufooka. Zitsulo zosapanga dzimbiri zimatha kupukutidwa kuti zitheke, ndipo nthawi zambiri zimafotokozedwa kuti zizigwiritsa ntchito malo owoneka bwino.

Se Dim Que la tuberia Tchimo ThuruA de Seora 800 Jer Ha, estirada e estrade greencia y Ruencia y Ruencua. La Adicion de Cromo hace las tuber a tubes sean akuletsa la prosion, mipreras Que el con testide on and conce curkiles.
Chitsulo chachitsulo
Scottish Gaelic
Chitsulo
Kunyumba »
Kurdish (Kurmanji)
Chitoliro chosapanga dzimbiri & chubu
ASTM A182 316L Spacer Run Arm Pergep
Nickel Anoney othamanga
Kupanga Rame B36.10 ASME B36.34
Chida chopangira chitoliro cha wedlel of Invor 601 Nicr15 Messies
Kukula OD: 1 \ / 2 "~ 48" "

Zimawonetsa kukana bwino kusalowerera ndale. Izi za alloy zimapanga mwa khumi ndi chimodzi, filimu yoteteza yomwe siyitalikirapo, koma imasunganso kukana kwa makutina kuposa kutentha.

Zoyenera zimapangidwa kenako kutentha mpaka kutentha kwambiri ndikuyamba kuzizira kwambiri mpaka kuzizira. Izi zozizirazi zimawonjezera mphamvu ya zojambula zosapanga dzimbiri ndikuwapangitsa kukhala olimba. Ma SS 310s oyenerera amagwiritsidwa ntchito m'mafakitale ngati madzi am'madzi, mafuta am'mimba ozungulira komanso pompopompo. 310s ss zolimbitsa thupi zimagwiritsidwa ntchito m'makalasi osiyanasiyana kuti athe kuthana ndi zovuta zomwe zimagwiritsidwa ntchito komanso.

Ndife opanga zitsulo 20 zophatikizika zimawonetsa kukana kwa chipolopolo chowonetsera cha Sulfuric Acids, zomwe zimafunikira kwambiri muzomera zopangira rapuni kupanga ndi zomera.
Chitsulo chachitsulo
Scottish Gaelic
Chitsulo
Kunyumba »
Kurdish (Kurmanji)
Chitoliro chosapanga dzimbiri & chubu
ASTM A182 316L Spacer Run Arm Pergep
Nickel Anoney othamanga
Kupanga Rame B36.10 ASME B36.34
Chida chopangira chitoliro cha wedlel of Invor 601 Nicr15 Messies
Zhengzhou Huitong Mapaipel Counc CO., LTD.

Monl 400 (yomwe imadziwikanso kuti iloy 400) ndi njira yokongola kwa mafakitale pomwe kukana kwa mafakitale ndikofunikira kwambiri.

Zizindikiro za Nickel-Copy-Copy 400 monol 2.4360 molunjika rod ndiyabwino kwambiri opsinjika ku chloride ku chloride movutikira mukakumana ndi zowononga m'matumbo. Monl 400 ndi a Haloy ndi Nickel omwe amadziwika masiku ano chifukwa cha ntchito yake yayitali. Alloy ali ndi kukana bwino acid ndi alkali. Kuphatikiza apo, ili ndi mphamvu zabwino zokhala ndi mphamvu, duckity, kukhala waulimi wabwino kwambiri, ndipo imatha kuumitsidwa ndi ntchito yozizira. Kuphatikiza apo, itha kugwiritsidwa ntchito poizona ndi kutentha kuyambira kuchotsera mpaka 538 digiri Celsius.

Chingwe chimakhala chokwera, milomo kapena rim, kunja kwa zakunja kapena mkati, zomwe zimathandiza kuwonjezera mphamvu (monga mtengo wamtambo kapena t-bat); Kuti mulumikizidwe mosavuta \ / kusamutsa kwa kulumikizana ndi chinthu china (monga chowala kumapeto kwa chitoliro, scal cylinder, etc., kapena pamunda wa mandala); kapena pokhazikitsa ndikuwongolera mayendedwe a makina kapena mbali zake (monga tambala mkati mwagalimoto kapena gudumu la tram, zomwe zimapangitsa mawilo kuti asamayendetse njanji). Mawu akuti "Flange" imagwiritsidwanso ntchito ngati chida chogwiritsidwa ntchito chopanga ma flanges.

Monga chitsulo, zitsulo zosapanga dzimbiri zimapangidwa ndi chitsulo ndi kaboni. Komabe, chitsulo chosapanga dzimbiri chilinso ndi chromium yocheperako 10.5%, chinthu chachitsulo chomwe chimapereka chimaliziro chachitsulo ndikulimbana ndi kuwononga. Zitsulo zosapanga dzimbiri ndizothandiza pakugwiritsa ntchito kwa nthawi yayitali zomwe zidzadziwitsidwa ndi zinthu, chinyezi komanso mankhwala ochimwa. Ndibwinonso kwa makonda antchito monga kukonzekera kwa chakudya ndi mankhwala opangira chakudya, monga chiopsezo choipitsidwa ndi chotsika kwambiri.

Inter 36 ® ndi chitsulo-chitsulo chotsika kwambiri chomwe chili ndi 36% Nickel, IMPARS 36 ili ndi zochulukirapo pakukula kwa kutentha kwa a Crogenic pafupifupi + 260 ° C).

Nickel 200 Amalongosola Nickel 200 Malawi amakhala olimba, osasunthika, ndipo amaliza bwino. Kuphatikiza apo, Astm B564 SP52200 N02200 Zisoka zakhungu zimalimbana ndi kutengera ndale komanso zotsatsa, zimapangitsa kukhala bwino kugwiritsa ntchito zida zogwirizira.

FSTEOLLOY C2000 ikupezeka mu mitundu yosiyanasiyana ndi makulidwe amtunduwu, mtundu uwu wa chromium-molybdenum aroyoy amadziwika bwino chifukwa cha mphamvu zake zazikulu komanso kukana.

Gulu la kalasi 310s chitsulo chosapanga dzimbiri chomwe chili ndi mpweya wotsika, wokhala ndi ma nickel ndi chromium

Mapeto a Stob amagwiritsidwa ntchito ndi ma lapi. Metline ndi chotsimikizika cha ISO Titha kupereka malekezero ndi afupikitsa (kovomerezeka) ndi satifiketi yoyesa malinga ndi En10204 3.1.

Mapulogalamu omwe amakumana ndi ma andine amafunikira kuti apirire pazotsatira za mchere. Kupatula apo, kuchuluka kwa mchere m'madzi am'madzi ndi pafupifupi 3.5%, zokwanira kunyamula zitsulo wamba popanda chithandizo choteteza.
USN C70600 Yopangidwa
Scottish Gaelic
Chitsulo
Kunyumba »
Kurdish (Kurmanji)
Chitoliro chosapanga dzimbiri & chubu
Chitoliro cha Titanium Orw ndiokwera mtengo poyerekeza ndi aluminiyamu.
Nickel Anoney othamanga
Kupanga Rame B36.10 ASME B36.34

A789 S31803 ndi S32205 ndi zitsulo ziwiri zosapanga dzimbiri zomwe zimagwiritsidwa ntchito kwambiri pantchito zosiyanasiyana. Mapaipi awa a duplex s31803 osakhala opanda chidwi amadziwika chifukwa chokana kwambiri kuwonongeka, mphamvu zazikulu, komanso kutopa kwambiri. A789 ndi lingaliro lomwe limakwirira osawoneka bwino komanso machubu opangidwa ndi chitsulo chosapanga dzimbiri.

Cucro Nickel adatulutsidwa amazikika pamatenthedwe pakati pa 593 ndi 816 madigiri a Celsius (1100 ndi 1500 degrees Fahres). Copper-nickel adasula minda yolumikizidwa idagwiritsidwabe ntchito kwambiri m'makono potumiza anthu.

Kuchulukitsa kwa titanium ndi pafupifupi 60% yomwe ya chitsulo chosapanga dzimbiri ndi nickel polosys, kupulumutsa thupi kumeneku kumapangitsa kuti ikhale chisankho chodziwika bwino pakugwiritsa ntchito monga Arrospace.

Kwa malo okhala otsika kwambiri, mizere yotsika ya mtundu 304l imakonda chifukwa cha kukana kwakukulu kwa chilengedwe.