Dalilai daban-daban da ke shafar kwanciyar hankali na ƙirar jarin

    Ci gaba da inganta madaidaicin daidaiton simintin saka hannun jari da rage samfuran sharar gida wanda ya haifar da wuce gona da iri ya kasance ɗaya daga cikin manyan manufofin da ma'aikatan simintin saka jari ke bi a gida da waje.

1. Daidaitaccen girma na simintin saka hannun jari

1. Daidaitaccen girma na samfurin kakin zuma da abubuwan da ke tasiri

A mafi yawan lokuta, girman kakin zuma yana canzawa sosai lokacin da girman simintin ya canza, kuma akwai 'yan kaɗan. Gabaɗaya, girman juzu'in ƙirar kakin zuma yana lissafin kashi 10% zuwa 70% na girman juzu'i na simintin.

Sigogin aiwatar da gyare -gyaren suna da tasiri mai mahimmanci akan daidaiton girma na kakin zuma. Babban abubuwan sune kamar haka:

(1) Zaɓin zafin zafi na kakin zuma

    Abubuwa daban -daban na gyare -gyare suna da ayyuka daban -daban saboda tasirin zafin zafin kakin zuma. Lokacin da ake amfani da kayan ƙera kayan kakin zuma, zafin zafin zafin da kakin zuma yana da matukar tasiri ga tasirin kwanciyar hankali na kakin zuma, yayin da kayan ƙera resin na da ƙarancin tasiri.

(2) Matsa lamba

Lokacin da matsin ya yi ƙanƙanta, ƙanƙantar da ƙirar kakin zuma yana raguwa sosai lokacin da matsin ya ƙaru. Koyaya, bayan an ƙara matsa lamba zuwa wani gwargwado (≥1.6MPa), matsin lambar kusan ba ta da tasiri akan girman kakin zuma. Ba abin mamaki bane sakamakon gwajin ƙasashen waje sau da yawa yana ƙarewa cewa "matsin lamba ba shi da alaƙa da girman ƙoshin kakin zuma", amma tunanin kamfanonin cikin gida da yawa ba ɗaya bane.

(3) Yawan yawo

    Za'a iya canza adadin kwararar kayan ƙirar ta hanyoyi guda biyu masu zuwa, amma tasiri akan girman ƙirar kakin ba ɗaya bane:

· Ta hanyar canza saitin saurin kwararar latsawar kakin zuma, wannan hanyar ba ta da wani tasiri kan raguwar ƙirar kakin zuma. Koyaya, yana da tasiri mai mahimmanci akan cikawa da ingancin sassan sassa masu katanga tare da sifofi masu rikitarwa ko ƙyallen kakin zuma tare da murdiya.

· Wannan hanyar tana da babban tasiri ta hanyar canza sashin giciye na tashar allurar kakin zuma, saboda haɓaka yankin giciye na tashar allurar kakin ba zai iya rage zafin zafin kakin kaɗa kawai ba, har ma yana tsawaita ƙarfafawa. lokacin kayan kwalliya a tashar tashar allura ta kakin zuma, ta hakan yana ƙara haɗewar ƙirar kakin zuma Matsayin raguwa da raguwar ƙasa.

(4) Lokacin allura

    Abin da ake kira lokacin allura a nan ya haɗa da lokutan lokaci uku na cikawa, haɗawa da kiyayewa. Lokacin cikawa yana nufin lokacin kayan da za a ƙera don cika ramin gyare -gyaren; ƙaddamarwa tana nufin lokaci daga cika juzu'i zuwa rufewar bututun allurar kakin zuma; da riƙewa yana nufin lokaci daga ƙulli bututun allurar kakin zuma zuwa fitar da ƙirar.

    Lokaci na allura yana da tasiri mai mahimmanci akan raguwar ƙirar kakin zuma. Wannan saboda ƙarin kayan ƙyallen za a iya matse su cikin rami ta hanyar haɓaka lokacin allura, kuma ƙirar kakin zuma za ta kasance mafi ƙanƙanta, don haka rage raguwar ƙima. Nauyin samfurin kakin zuma yana ƙaruwa tare da tsawaita lokacin haɗawa. Lokaci na ƙuntatawa ya dace. Idan lokacin ƙuntatawa ya yi tsayi da yawa, kayan ƙirar da ke tashar tashar allurar kakin ya ƙaƙƙarfa, kuma aikin ba zai yi aiki ba. Hakanan ana iya gani daga hoto na 4 cewa lokacin lokacin allura ya takaice (15-25s), zafin zazzabin kakin zuma yana tashi, kuma ƙuntatawa yana ƙaruwa; amma lokacin da aka tsawaita lokacin allura zuwa 25-35s (a ƙarƙashin ƙa'idar cewa lokacin cikawa ya kasance mai dorewa, ainihin Abin da ke sama shine don ƙara lokacin ƙwanƙwasawa) Tasirin zafin zazzabin kakin zuma ya zama ƙarami; lokacin da lokacin allura ya ƙaru zuwa fiye da shekaru 35, yanayin da akasin haka zai faru, wato, yayin da zafin zafin zafin kakin zuma ya tashi, ƙimar kumburin kakin zai ragu a maimakon haka. Wannan sabon abu ana iya bayyana shi azaman ƙara yawan zazzabi na kayan kwalliya da tsawaita lokacin ƙwanƙwasawa suna da tasiri iri ɗaya kamar haɓaka ƙimar ƙirar kakin zuma.

(5) Molding zafin jiki da kakin zuma kayan aiki

    Zaɓin zafin jiki yana da girma, ƙirar kakin zuma tana sanyaya sannu a hankali, kuma ƙuntatawa yana ƙaruwa. Wannan saboda har yanzu ƙirar kakin zuma tana cikin gyare -gyaren matsawa kafin a fitar da ƙirar, kuma ƙuntatawa ta iyakance, amma bayan fitar da ƙirar, ta zama 'yanci don ƙyama. Sabili da haka, idan zafin zazzabi na kakin zuma ya yi yawa lokacin da aka saki ƙirar, ƙimar ƙarshe na ƙarshe zai zama babba, kuma akasin haka, ƙanƙanin zai yi ƙanƙanta.

    Hakanan, tsarin sanyaya na latsa kakin na iya samun tasirin kusan 0.3% akan girman kakin zuma.

A ƙarshe, yana da mahimmanci a jaddada cewa lokacin amfani da kayan ƙera kayan kakin zuma, manna kakin shine tsarin haɗin gwiwa na matakai uku na ƙarfi, ruwa da gas. Matsakaicin ƙarar tsakanin matakai uku yana da babban tasiri akan girman ƙirar kakin zuma. Ba za a iya sarrafa madaidaicin alaƙar da ke tsakanin waɗannan ukun ba a cikin ainihin samarwa, wanda kuma shine mahimmin dalili na rashin daidaiton yanayin ƙoshin kakin ta amfani da kayan gyaran kakin.

2. Tasirin kayan harsashi da tsarin yin harsashi akan daidaiton girman simintin gyare -gyare

    Tasirin harsashi mai ƙyalƙyali a kan girman simintin yana haifar da faɗaɗawar zafi da naƙasasshen zafi (ƙwanƙwasa zafin jiki) na kwandon shara yayin harbe -harbe, da ƙuntatawa (toshewa) na kwandon shara a kan raguwar sanyaya simintin.

(1) Ƙara zafi na harsashi

    Yafi dogara da harsashi abu. Daban -daban kayan ƙanƙantar da kai suna da ƙimar faɗaɗa daban -daban. Daga cikin abubuwan da aka saba amfani da su, silica fused yana da ƙaramin ƙimar faɗaɗawa, sannan silicate na aluminium ya biyo baya, kuma silica shine mafi girma kuma mara daidaituwa. Bayan gwaji, an ƙaddara cewa za a iya ƙona harsashin silicate na aluminium daga zafin jiki na ɗaki zuwa 1000 ℃, harsashi na iya samar da kusan 0.25% na faɗaɗawa, wanda ke lissafin ƙaramin adadin girman girman girman simintin. Sabili da haka, idan ana amfani da irin waɗannan kayan ƙyalli, harsashi Yana da kwanciyar hankali mafi girma, kamar silica fused babu shakka zai fi kyau. Koyaya, idan ana amfani da silica, girman harsashi yana canzawa sosai.

(2) Naƙasa naƙasasshe (babban zazzabi mai rarrafe)

    Misali, harsashi da ke amfani da gilashin ruwa azaman mai ɗaure yana da babban matakin rarrafe a yanayin zafi sama da 1000 ° C fiye da na silica sol da ethyl silicate shells. Kodayake fuskokin corundum da kansa yana da babban ƙima, saboda kasancewar ƙazanta kamar sodium oxide, zafin harbin harsashi sama da 1000 ℃ na iya haifar da rarrafe, wanda ke haifar da ƙarancin kwanciyar hankali.

(3) Ƙuntata harsashi mai ƙyalli a kan ƙanƙantar da simintin gyare -gyare - da koma baya da faɗuwar harsashi.

    A taƙaice, kayan ƙyama suna taka muhimmiyar rawa a cikin tasirin harsashi akan girman juzu'in simintin gyare -gyare, amma ba za a iya yin watsi da rawar madogara ba. Sabanin haka, tasirin tsarin yin harsashi kaɗan ne.

3. Tasirin danniya ya haifar da rashin sanyaya simintin gyare -gyare a kan kwanciyar hankali

    Yawan sanyaya na kowane sashi na simintin gyare -gyare (gami da tsarin rufewa) daban ne, wanda ke haifar da danniya mai zafi kuma yana lalata simintin gyare -gyare, ta hakan yana shafar yanayin kwanciyar hankali. Ana fuskantar wannan sau da yawa a ainihin samarwa. Rage yawan sanyaya simintin gyare -gyare da inganta haɗin masu gudu sune matakan rigakafi masu tasiri.

2. An ba da mabuɗin don inganta daidaiton-ƙin ƙimar ƙirar daidai

    Abubuwan da aka ambata a sama "kwanciyar hankali" ya bambanta da "daidaitaccen girma" da "madaidaici (madaidaici)". Ƙarfin girma (watau daidaituwa) daidai yake da daidaiton girma, yana nuna ƙimar juzu'i ko watsawa, kuma galibi ana auna shi ta daidaiton karkacewa σ. Babban abin da ke haifar da rashin kwanciyar hankali shine ikon sarrafa lax, wanda kuskure ne bazuwar. Daidaiton yana nufin matakin da lissafin ma'anonin ƙimomin da aka auna da yawa ya karkace daga ƙimar da aka zaɓa don wani girman a kan simintin gyare -gyare, wato girman matsakaicin karkacewa. Don simintin saka hannun jari, babban dalilin rashin daidaiton girman girman shine aikin da bai dace ba na ƙuntatawa yayin ƙirar ƙirar, wanda kuskure ne na yau da kullun, wanda galibi ana daidaita shi ta hanyar yin gyare -gyare akai -akai. Daidaitaccen girma (madaidaici) shine haɗin abubuwan biyu na sama. Sabili da haka, don haɓaka daidaiton ƙimar simintin gyare -gyare da kuma magance matsalar haƙurin girman samfur, ba wai kawai dole ne a sarrafa tsarin sosai don rage juzu'in girma ba, har ma da ƙuntatawa na kowane girma na simintin gyare -gyare dole ne a sanya shi daidai lokacin tsara bayanin martaba. .

    Sanannen abu ne cewa ƙuntatawa na ƙarshe na daidaitattun simintin gyare -gyare shine haɗewar ƙirar kakin zuma, ƙuntatawar gami da ƙaramin adadin harsashi. Kwalban ya kumbura da kusan 0.25%, kuma tasirin sa yana da iyaka. Kodayake yawan ƙanƙantar da kai na allurar galibi yana da girma fiye da na kakin zuma, girman juzu'i na jujjuyawar ta hanyar latsa maɓallin kakin yana da tasiri mafi girma. Domin rage farashin gyaran gyare -gyare da rage jujjuyawar girman simintin gyare -gyare, yana da matukar mahimmanci a sarrafa ƙuntatawar ƙirar kakin zuma.

1. Karancin kakin zuma

    Yakamata a auna ƙanƙantar da ƙwayar kakin zuma bayan an daidaita girman kakin. Wannan shi ne saboda raguwar ƙirar kakin zuma baya tsayawa gaba ɗaya bayan an fitar da injin. Girman kakin zuma a wasu lokuta yana daidaitawa ne kawai bayan 'yan kwanaki bayan an fitar da injin. Koyaya, yawancin raguwar kayan ƙirar an kammala su cikin sa'o'i daya zuwa da yawa bayan fitar da injin. Yawan kakin zuma na kakin zuma yana da abubuwa masu tasiri masu zuwa:

(1) Nau'in kayan kwalliya;

(2) Girman sashi na samfurin kakin zuma;

Yana da kyau a jaddada cewa girman giciye na ƙirar kakin zuma yana da babban tasiri akan ƙuntatawa. Misali, ƙuntatawar ƙimar kayan ƙirar da ba a cika cikawa ba lokacin latsa samfuran kakin zuma na kauri daban -daban. A kauri daga cikin sashi na kakin zuma mold ya kamata kullum ba wuce 13mm. Lokacin da kauri ya fi 13mm, za a iya rage kaurin bango ta amfani da kakin kakin sanyi ko murhun ƙarfe don cimma manufar rage raguwa, wanda yake da mahimmanci musamman ga kayan ƙirar da ba ta cika cikawa ba.

Lura: 1. Matsakaicin ƙuntatawa na kayan ƙoshin ruwa mai narkewa kusan 0.25%;

    2. Lokacin amfani da murɗaɗɗen murɗaɗa, murɗaɗɗun yumɓu, ko bututun gilashin ma'adini, babu raguwar layi na ƙoshin kakin da ke hulɗa da ainihin;

(3) Nau'ikan muhimman abubuwa

    Girman ramin kakin zuma babu shakka yayi daidai da siffar gindin. Sabili da haka, amfani da murjani ya zama hanya don inganta daidaiton girman ramin kakin zuma.

2. Alloy ƙuntatawa

Karkacewar alloy yafi dogara da abubuwa masu zuwa:

· Nau'in allo da simintin abun da ke ciki;

· Geometry na simintin gyare -gyare (gami da yanayin taƙaitawa da girman sashi);

· Sigogi na simintin gyare -gyare, kamar zazzabi mai zuƙowa, zafin harsashi, ƙimar sanyaya, da sauransu;

· Amfani da yumbu mai ɗamara, bututun gilashin ma'adini, da dai sauransu.

    Tun da zazzabin da ke zubowa, zazzabin harsashi, ƙimar sanyaya da sauran sigogin tsari gaba ɗaya ana sarrafa su ta hanyar katunan tsari na yau da kullun yayin aiwatar da samarwa, girman juzu'in da wannan ya haifar ba babba bane tsakanin ƙungiyoyin samarwa daban -daban. Ko da zafin zazzabi ya wuce iyakar da ake buƙata ta ƙayyadaddun tsari, sauye -sauyen girman simintin yawanci ba babba bane. Mai kama da ƙirar kakin zuma, girman sashi na simintin gyare -gyare da ƙuntatawa harsashi mai ƙyalƙyali shine manyan abubuwan da ke shafar raguwar allo. Kwarewa ya nuna cewa ƙuntatawa na girman ƙuntataccen girman shine 85% zuwa 89% na ƙimar raguwa kyauta; girman matsakaicin matsakaici shine 94% zuwa 95%.

3. Ƙananan adadin rukunin farko na samfurori don aunawa

    Ƙididdigar raguwa da aka lissafa a sama shine bayanan tabbatacce dangane da ƙwarewar da ta gabata, ba ainihin ƙimar raguwa ba. Tsara da kera kyawon tsayuwa bisa ga waɗannan bayanan, gyara babu makawa. Domin inganta daidaituwa da nasarar nasarar gyara, da rage adadin gyare -gyare, hanyar haɗi mai mahimmanci shine a duba girman isasshen adadin samfuran simintin gwaji. Saboda girman simintin gyare -gyaren da muke samarwa ba zai iya zama daidai iri ɗaya ba, don haka kawai lokacin da adadin samfuran da aka auna ya isa, matsakaicin ƙimar da aka samu na iya kasancewa kusa da matsakaicin ƙididdigar lissafi. Daga wannan, ba shi da wahala a ga cewa mafi ƙarancin adadin samfuran auna yana da alaƙa kai tsaye da ikon aiwatar da aikin samarwa don sarrafa daidaiton girman samfur (Ƙarfin Tsarin). Idan simintin gyare -gyare gaba ɗaya iri ɗaya ne, to ana buƙatar samfur ɗaya kawai don gwadawa; Sabanin haka, idan girman simintin ya canza sosai,

Wajibi ne a auna samfura da yawa don samun ingantattun bayanan ƙuntatawa. Kamar yadda aka ambata a baya, ikon tsarin samarwa don sarrafa girman za a iya wakilta ta 6σ na girman simintin da wannan tsari ya samar. Daga matakin fasaha na yanzu na mafi yawan wuraren saka hannun jari, Hp galibi yana sama da 0.5, don haka rukunin farko na samfuran auna gabaɗaya yana buƙatar aƙalla samfura 11.

uku. Tsarin tsarin aunawa

    Lokacin yin nazari da warware matsalolin girman samfur, dole ne mu mai da hankali ga daidaito da amincin tsarin ma'aunin da aka yi amfani da shi. Baya ga yawan daidaita kayan aikin aunawa da kayan aikin da kansu, yana da mahimmanci don rage kurakuran ma'auni. Idan tsarin aunawa (gami da mai aiki da hanyar aiki) yana da babban kuskure, ba kawai masu ƙin yarda za a iya yanke hukunci azaman samfuran da suka cancanta ba, amma kuma samfuran samfuran da yawa da suka cancanta na iya yin kuskure a matsayin ƙin yarda, duka biyun na iya haifar da manyan hatsarori ko tattalin arziƙin da ba dole ba. asara. Hanya mafi sauƙi don ƙayyade ko tsarin auna ya dace da takamaiman aikin auna shine yin gwajin maimaitawa da maimaita cancanta. Abin da ake kira maimaitawa yana nufin cewa mai duba ɗaya yana amfani da kayan aiki ɗaya (ko kayan aiki) da hanya don bincika sashi ɗaya kuma sami daidaiton sakamakon. Reproducibility yana nufin daidaiton sakamakon da masu aiki daban -daban suka samu ta amfani da kayan aiki daban -daban don duba sashi ɗaya. Ƙungiyar Ayyukan Masana'antu ta Amurka (Ƙungiyar Ayyukan Masana'antu ta Motoci) ta baiyana cewa yawan daidaitattun daidaitattun karkacewar maimaitawa da maimaita R&R a cikin daidaitaccen karkacewar juzu'in girman simintin da aka auna shine ≤30% a matsayin ma'aunin tsarin auna don saduwa da bukatu [5]. A cikin auna wasu manyan simintin simintin siffa mai sarkakiya, ba duk tsarin auna zai iya cika wannan buƙata ba. Kuskuren ma'aunin da aka ba da izini lokacin auna ma'aunin yakamata ya zama ƙarami, yawanci 1/3.
hudu. Mould tsarin da aiki matakin

    Sanannen abu ne cewa tsarin ƙirar da ingancin sarrafawa suna da tasiri mai mahimmanci akan girman da lissafin ƙirar kakin zuma. Misali, ko tsarin sakawa da matsawa daidai ne kuma abin dogaro ne, ko daidaituwa tsakanin sassan motsi (kamar tubalan masu motsi, kusoshi, da sauransu) ya dace, ko hanyar zane tana da fa'ida don tabbatar da daidaiton girman simintin gyare -gyare. , da dai sauransu. Ba lallai ba ne a faɗi, don adadi mai yawa na tsire -tsire masu saka hannun jari na cikin gida, matakin ƙirar ƙirar da masana'anta har yanzu yana buƙatar haɓaka cikin gaggawa.

Biyar a ƙarshe 

    Daga binciken da aka yi a sama, ba shi da wahala a ga cewa inganta girman daidaiton simintin saka hannun jari wani tsari ne na tsari wanda ya haɗa da dukkan bangarorin samar da jarin zuba jari. Ana iya taƙaita mahimman abubuwan kamar haka:

1) Yi taka tsantsan sarrafa sigogin tsarin gyare -gyaren, musamman sigogi waɗanda ke da tasiri sosai akan girman simintin.

2) Zabi abin da ya dace da harsashi.

3) Tattara, ƙidaya da nazarin bayanan da suka danganci raguwa a cikin madaidaicin hanyar da ta dace da ƙa'idodin ƙididdiga don inganta daidaiton aikin raguwa.

4) Kula da tsarin auna akai -akai (gami da kayan aiki, ma'aikatan dubawa da fasaha) don tabbatar da cewa maimaitawa da kurakuran maimaitawa sun cika buƙatun da aka ƙayyade.

5) Ci gaba da inganta matakin ƙirar ƙirar da masana'anta.

6) Matakan kamar gyaran gyare -gyare da daidaita yanayin zafi har yanzu ba makawa a lokuta da yawa

Da fatan za a adana tushe da adireshin wannan labarin don sake bugawa: Dalilai daban-daban da ke shafar kwanciyar hankali na ƙirar jarin

Minghe Kamfanin 'Yan Wasa Masu Mutu aka sadaukar domin tsirar da samar da inganci da kuma high yi Gyare sassa (karfe mutu simintin sassa Range yafi hada da Thin-Wall Mutu Wasa,Hot Chamber Mutu Wasa,Cold Chamber Mutu Wasa), Zagaye Sabis (Mutuwar 'Yan Wasa,CNC machining,Motsa Motsa, Jiyya na sama) .Adadin al'ada Aluminium ya mutu, magnesium ko Zamak / zinc mutu simintin gyare-gyare da sauran buƙatun simintin maraba don tuntube mu.

Karkashin kulawar ISO9001 da TS 16949, Ana aiwatar da dukkan matakai ta hanyar daruruwan injunan jefa simintin da suka mutu, injunan axis 5, da sauran kayan aiki, tun daga masu fashewa zuwa na’urar Ultra Sonic masu wanki.Minghe ba kawai tana da kayan aiki na zamani ba amma kuma tana da kwararru ƙungiyar ƙwararrun injiniyoyi, masu aiki da sufetoci don tabbatar da ƙirar abokin ciniki ta zama gaskiya.

Manufactureran kwangilar masana'antar mutu. Abubuwan haɓakawa sun haɗa da sassan sanyi na sassan mutuɗar aluminum daga 0.15 lbs. zuwa 6 lbs., saurin canje-canje da aka saita, da aikin inji. Sabis-ƙarin ayyuka sun haɗa da gogewa, faɗakarwa, lalatawa, fashewar harbi, zane, zane, rufi, haɗuwa, da kayan aiki. Abubuwan da aka yi aiki tare sun haɗa da allo irin su 360, 380, 383, da 413.

Zinc ya mutu don jefa ƙirar ƙira / sabis na injiniya tare. Custom manufacturer na daidaici tutiya mutu simintin gyaran kafa. Castananan 'yan simintin gyare-gyare, pressurean ƙwanƙwasa masu juzu'in juzu'in simintin gyare-gyaren juzu'ai, ƙera simintin gyare-gyare na al'ada, ɓangaren mutu da' yan wasa masu mutuwa masu zaman kansu da ƙofar da aka hatimce za a iya ƙera su. Za'a iya kerarrar 'yan simintin a tsayi da faɗi har zuwa 24 a ciki. A cikin +/- 0.0005 a cikin. Haƙuri.  

ISO 9001: 2015 bokan masana'anta ta mutu magnesium, Abubuwan haɓaka sun haɗa da matsin lamba na magnesium mai matsi mai yawa har zuwa tan 200 mai ɗumi mai zafi & 3000 ton mai sanyi, ƙirar kayan aiki, gogewa, gyare-gyaren, inji, foda & zanen ruwa, cikakken QA tare da damar CMM , taro, marufi & isarwa.

ITAF16949 bokan. Servicearin Sabis ɗin Gyare Hadawa zuba jari,yashi,Kushin nauyi, Stauren ɓoye ɓoye,Siffar Centrifugal,Cast Vacuum,Dindindin Mould Gyare, .Hanyoyin iyawa sun hada da EDI, taimakon injiniya, ingantaccen samfuri da aiki na sakandare.

Fitar Masana'antu Abubuwan Nazarin sassa don: Motoci, Bikes, Jirgin sama, kayan kiɗa, Jirgin ruwa, Na'urorin hangen nesa, na'urori masu auna sigina, na'urori masu auna sigina, Na'urori, Kayan lantarki, ,unshi, Clocks, Inji, Injiniya, Kayan Kaya, Kayan Jiki, Jigs, Telecom, Haske, Kayan aikin likita, Na'urar daukar hoto, Robobi, Sassaka, kayan sauti, kayan wasanni, Kayan aiki, Kayan wasa da ƙari. 

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By Minghe Mutu Wasa Wasa | Categories: Labarai masu Taimakawa |Material Tags: Gyare Aluminum, Zinc Gyare, Fitar Magnesium, Castan Wasanni, Bakin Karfe Cast, Fitar tagulla,Gyare Tagulla,Fitar Bidiyo,Tarihin Kamfanin,Aluminum Mutu Gyare | Comments Off