Ngome za kutentha kwa madzi

Duplex Steel S32205 Bar Stock ndi Ferritic, Duplex, Austetic 3% Molybdenum, 22% chromium ndi 5% - 6% nickel atoni chitsulo chosapanga dzimbiri.

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).

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.

Nilo \ / alloy k W.NR.: 1.3981
ASSE: K94610 Astm F15
Makampani ena omwe amagwiritsa ntchito alloy ndiye chakudya ndi mabuku akumwa, zomwe zimagwiritsa ntchito acetic acid ngati chosungira. Acetic acid ndi acid acid omwe ndikuwononga chitsulo cha kaboni.
Asme B36.19M Chitoliro chosapanga dzimbiri

S32205 Hex Bolts (omwe amadziwikanso kuti S31803) amapangidwa ndi dupx 2205. Chifukwa izi zimapangidwa ndi pafupifupi 22% chromium, 6% Nickel, ndi 3% molybdenum mikhalidwe ya zitsulo zomwe zitsulo sizingachitike, kuwonongeka, kukokoloka, kukokoloka, kukokoloka, mpaka. Dupex 2205 Hex Bolts amaperekanso mphamvu ziwiri poyerekeza ndi chitsulo chosapanga dzimbiri.

Kuzungulira kwa mutu wa N0881111

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.

Zimathandizira kukonza kukana kukana. Makampani ambiri, kuphatikiza pepala ndi zamkati, kudzudzula kwa mankhwala, mapaipi a nyukiliya, mphamvu zamagetsi ndi ena, gwiritsani ntchito asme a ntchito zosiyanasiyana. Premia wathu alyoy f12 Ma flanges amatulutsa mwaulere, m'mphepete mwangwiro, wowoneka bwino, wopepuka, wopepuka, wosavuta kuyika, kuchititsa chidwi, kuchititsa chidwi kwambiri komanso kumachititsa chidwi.

Mapaipi a kusokonekera kosasaka kumakhala ndi mwayi wokhala ndi katundu wapamwamba kwambiri komanso mphamvu zambiri.

Chromium Molybdenum ali ndi gawo labwino kuposa chitsulo cholemera kuposa chitsulo chowonjezera, chomwe chimapangitsa kuti opanga azigwiritsa ntchito wowonda kapena pang'ono mitengo yaying'ono kuti muchepetse kunenepa.

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.

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.

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.

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

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

Imatha kupirira mankhwala osiyanasiyana osakhazikika komanso osasinthasintha, ndikuwonetsa kukana kwakukulu ndikumenya ndi Crevice pamaso pa chlorides ndi ma halides ena.
acero intaxided duplex placa lamina Bobina 2507

Aloy 309 (S30900) ndi chitsulo chosapanga dzimbiri chomwe chimapangidwa kuti chiwonongeko kwambiri kutentha. The alloy imaletsa maxidgetion mpaka 1900¡f (1038¡c) pansi pa nyengo zosazungulira. Kuyenda pafupipafupi kumachepetsa kukana kwa oxidation mpaka pafupifupi 1850¡f (1010¡c).

254 SIS SISON SP3154 Super Austetic Austetic Ashelitic Mphamvu Yokhala ndi mphamvu yayikulu yowunikira bwino kwambiri kuthirira pamadzi am'madzi ndi malo osiyanasiyana opangira mafakitale. Masupe 254 amagwira molakwika popewa, Crevice Corrosion ndi chloride kupsinjika kuphulika. 254 Washer wosaukiridwa amadziwika ndi maulendo okwera komanso olimbikitsidwa.

FOSTELOLELOY B3 N10675 Pipe Fand of PIPEPE Systems ndi Makina Oseketsa
Iswees osawoneka bwino kwambiri a sing'anga osawoneka N06600 ndi Astm B167 ndi omwe amapangidwa kuti apirire kwambiri ndikubwera ndi chitsimikizo chachikulu.
A182 304 Flange yolemeretsa mafuta ndi mpweya

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.

Maphunziro osapanga dzimbiri 316 amawononga ndalama chifukwa cha kukana kwawo kovunda. Aloya apamwamba kwambiri awa amalimbikitsidwa makamaka kuti agwiritse ntchito pomwe alloy amadziwika ndi magetsi onunkhira komanso ...

Mitundu yawo imaphatikizapo mawonekedwe am'maso, ma baltoraturatura, mtedza wambiri, hex dome cape, ma screaw a mutu, ma bolt mutu wa hex 321 Cap. Kugwedeza ndi kupindika ma boloni 321 kumatha kuchitika ku chloride-okhala ndi malo okhala, pomwe kupsinjika kwa mipata kumatha kuchitika pamwamba 60 digiri Celsius.

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.

ASMM A312 TP316 ndi njira yokhazikika ya msoko, komanso kuzizira kwambiri osakhazikika opaleshoni ya chitsulo chosapanga dzimbiri zomwe zimagwiritsidwa ntchito kutentha kwambiri ndi ntchito wamba. Chitoliro chosawoneka bwino mafakitale chimapangidwa kuchokera ku chromium, nickel, ndi molybdenum, omwe amapereka SS Quams Stuam Turnion ku kutukula ndi dzimbiri.

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.

Zitsulo zosapanga dzimbiri
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.

Onse a ASME B16.5 ndi Asme B16.47 ALI OKHULUPIRIRA MIWE ZINSINSI ZOSAVUTA ZOSAVUTA ZOPHUNZITSA.

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.

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

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

SS 316 Yopangidwa Chipotonti imagwiritsidwa ntchito kuti ibwerere ndikulumikiza mapaipi awiri kwa wina ndi mnzake mbali zosiyanasiyana. Ayenera kupangidwa m'njira yoti athetse cavitatit komanso kutaya kwina kwakukulu.

China Super Duplex 2205 2507 F51 F53 S31803 S32850 Inther Halther Halther Brother 2205

Incrooy 800h Valnge Tili ndi mbiri yolimba mu malonda popanga mitundu yayikulu 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.
Mapaipi achitsulo amatha kusokonezedwa pamaziko a ntchito yake. Mapulogalamu wamba amakamba achitsulo ali m'dera lamadzi, mizere yamadzi yamafakitale, mizere yamadzi, mizere yamagetsi, ulimi wothirira, mafakitale omanga magalimoto ndi zolinga zomanga.
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.

254SMO (UN S31254) ndi chitsulo chosapanga dzimbiri chosapanga dzimbiri, zopangidwa ndi chromium wamba, molybdenum ndi nayitrogeni pakukaniza kokhazikika ndi kupindika.

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.
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Chimakeya
Zitsulo zomangira
Opangidwa Mapeto, Mapeto Omveka "
Kukula OD: 1 \ / 2 "~ 48" "
Chitoliro chachitsulo & chubu
Incoloy 800h chitoliro chokhala ndi temple wambiri
ASME A240 Mtundu 2205 Drite Stockgerder SA 240 GRE 2205
Duptux Stevel & Mapepala & Coils

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.
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Kunyumba »
Chipwitikizi
Chimakeya
Zitsulo zomangira
Opangidwa Mapeto, Mapeto Omveka "
Kukula OD: 1 \ / 2 "~ 48" "
Chitoliro chachitsulo & chubu
Incoloy 800h chitoliro chokhala ndi temple wambiri
ASME A240 Mtundu 2205 Drite Stockgerder SA 240 GRE 2205
Zitsulo zachitsulo & ma sheets & coils

Kuwala kumatha kukhala mbale yophimba kapena kutseka kumapeto kwa chitoliro. Izi zimatchedwa Flange ya wakhungu. Chifukwa chake, zojambulazo zimawonedwa ngati zigawo zamkati zomwe zimagwiritsidwa ntchito pothandizira makina.

Chitsulo chosapanga dzimbiri cha A403 WS31254 lili ndi chromium ndi malo otsika a carbon.ice:? ¡± a 48, 40s, 80s, xxs.

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.

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).

Mapaipi 254 amatha kupirira kupsinjika kwa makina opanga masewera olimbitsa thupi komanso aloy 254 osuma amagwira ntchito yopanikizika kwambiri komanso malo okhala.

FOSTELOLOY C276 ndi a Cromium-cromium-molybdenum ulloy yomwe imawerengedwa kuti ndi yolimba kwambiri. Aloya uyu sagwiritsa ntchito mapangidwe amalire a chimanga cha tirigu osemedwa, ndikupangitsa kukhala koyenera kugwiritsa ntchito mankhwala ambiri munthawi yotentha. Alloy C-276 Komanso sakugwirizana mwaluso kwambiri, kupsinjika-kutupa kumapangitsa kuti mpweya ukhale ndi zaka zambiri mpaka 1900¡f. Alloy C-276 ali ndi kukana kwapadera kwa malo osiyanasiyana osiyanasiyana.

Kugwiritsidwa ntchito ngati radius yayikulu yolumikizidwa kapena ma curves amafunikira, njirayi imapereka chidutswa cha chitoliro kapena chubu kudzera mumitundu itatu ya pyramid kuti ikwaniritse zopindika.

321 Chikhalidwe chakuda chosapanga dzimbiri m9 hexagombe mutu bolt 3-16 Hexagon Soutt Bolt 321 Heixagon Box Borcket Bolt

N08926 Yopangidwa Bhiring, D08926 Yotayika, N08926 Sporsant Spects Systems, majeremini am'mimba, majeremini a nayitrogeni.

Zitsulo zopangira zimapereka mwayi woyenera kuyeretsa, kuyeserera kapena kusintha. Nthawi zambiri amabwera motsatana koma amathanso kubwera m'magulu osiyanasiyana komanso amakona. Ma flanges amalumikizidwa wina ndi mnzake pobowola komanso wolumikizidwa ndi makina opukusa ndi kuwotcherera kapena kuluma ndipo amapangidwira kusokonekera kwamphamvu; 150lb, 300lb, 400lb, 600LB, 900LB, 1500LB ndi 2500Lb.

Ali ndi mphamvu zochepa za 105ksi. Pali mitundu yosiyanasiyana ya ma balts ndi ma bolts a mitundu yosiyanasiyana yamapulogalamu monga Astm A193 GRA B7 Hex Bolts.

Kugonjetsedwa kwa Prososion Fretelloy kumagwiritsidwa ntchito kwambiri ndi mafakitale a mankhwala. Kufunika koyenera kumabweretsa mwayi wovomerezeka ndi mphamvu zawo, thanzi komanso zachilengedwe, mafuta ndi mpweya, mafakitale a mankhwala osokoneza bongo.

A234 wp9 alloy stevecer ikugwiritsidwa ntchito pogwiritsa ntchito ntchito zotsika mtengo, komabe, zomwe zimachitika chifukwa cha zotupa za illoy.

Awa infoloy 800ht bolt erbow amapangidwa kuchokera ku zinthu zapamwamba kwambiri zomwe zimapangitsa evaloy 800ht bolt embo. ALI nawonso kutsatira njira ndi malamulo ogwirira ntchito. Kuphatikiza apo, miyezo yofunikira, malangizo ndi malangizo amatsatiridwa popanga equiloy 800ht adalimbikitsidwa. Awa infoloy 800ht bolt embo pomwe adapangidwanso.

Pofuna kufafanizira mapaipi, ndikofunikira kuchotsa payipi yolunjika pa mapaipi. Mukamagwiritsa ntchito ma piipelines osiyanasiyana, mapaipi osiyanasiyana ayenera kugwiritsidwa ntchito. Pamene mapaipiwo amagwiritsidwa ntchito, chikopa chiyenera kugwiritsidwa ntchito kusintha kukula kwa mapaipi. Mukamacheza, chipika chanjira zitatu chowonekacho chimagwiritsidwa ntchito ngati cholumikizira cholumikizira, kuti chikhazikitse chipani cholumikizirana kapena kukula kwa nthawi yayitali komanso cholumikizira cholumikizira cha mapaipi. , Pakulumikizana ndi zida zosiyanasiyana, palinso zolumikizira ndi mapulagini a gawo la chida.

Aloy 825 (ASTU88825) ndi Austetic Nickel-Sremium-Chromiam Inoy ndi zowonjezera za Molybdenum, mkuwa ndi Titanium. Zinapangidwa kuti zithandizire kukana kwa malo okhalamo, onse awiri oxidizing ndikuchepetsa.
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Kunyumba »
Chipwitikizi
Chimakeya
Zitsulo zomangira
Opangidwa Mapeto, Mapeto Omveka "
Kukula OD: 1 \ / 2 "~ 48" "
Chitoliro chachitsulo & chubu
Incoloy 800h chitoliro chokhala ndi temple wambiri
ASME A240 Mtundu 2205 Drite Stockgerder SA 240 GRE 2205
Kupanga Asme B36.10 ASME B36.69
Astm ASME SB 164 Monil 400 Round Bar Office N04400 Nickel Anoy Bar
Itar 36 Tubed OD: 0.2-6mm, WT: 0.02-2mm

Mawonekedwe owala a 2507 nthawi zambiri amatha kugwiritsidwa ntchito kukwaniritsa mphamvu yomweyo ya ma exkel nickel entos. Duplex 2507 Plate ndiyoyenera pakugwiritsa ntchito yomwe ikufuna nyonga yayikulu ndi kukana. Muli 25% chromium, 4% molybdenum ndi 7% nickel.

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.

Timapanga zojambula za Monl K500 zochokera ku nickel ndi zowongolera zamkuwa. Zinthuzi zili ndi kukana kwambiri kwa zinthu zolimba ndi mayankho monga mchere wamtundu wa maxidizing, ma acid, nitrate ndi othandizira oxidive.

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.

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.
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Kunyumba »
Chipwitikizi
Chimakeya
Zitsulo zomangira
Opangidwa Mapeto, Mapeto Omveka "
Kukula OD: 1 \ / 2 "~ 48" "
Chitoliro chachitsulo & chubu
Incoloy 800h chitoliro chokhala ndi temple wambiri
ASME A240 Mtundu 2205 Drite Stockgerder SA 240 GRE 2205
Kupanga Asme B36.10 ASME B36.69
Astm ASME SB 164 Monil 400 Round Bar Office N04400 Nickel Anoy Bar
Masamba achitsulo & ma sheet & coils

Astm A269TP304, TP304L, TP316, TP316, TP3277, S3826

Sch40 Monol 400 chitoliro chimasankhidwa kukhala nambala ya Werkstoff 2.4360 ndi N04400. Chipika 400 chimadziwikanso kuti Monil Anoy chitoliro cha 400, Monl 400 Pipe & Nickel Chitoliro 400.

Matupi achitsulo osapanga dzimbiri ndi abwino pa ntchito zonse zomwe zimagwiritsidwa ntchito ndi mphamvu zambiri komanso kukana kwa kutupa komwe kumafunikira. Kukhala ndi gawo lokhazikika ndi msoko wokazinga, chitoliro chosapanga dzimbiri chimagwiritsidwa ntchito kwambiri pa ntchito zonse zopangidwa ndi zinthu zomwe zimadziwika ndi zinthu - mankhwala, ndi madzi abwino, ndi madzi amchere. Matenda ena amapezeka ndi ndege ya 180 yodulira.

Magalasi okhazikika - omwe adayikapo sayansi-nickel-cobalt matobala, Kovar Smows, ali ndi mzere wowonjezera wowonjezera wofanana ndi galasi lolimba mkati mwa kutentha kwina