Ukukhiqizwa kwe-PCB ye-Mini PC yama-Motherboards aqinile kakhulu

Ukukhiqizwa kwe-PCB yebhodi lomama le-PC elincane

Okuqukethwe

  1. Chaza Ukwakheka Okuncane Ngaphambi Kokukhetha Ukwakhiwa Kwe-PCB
  2. Izinketho ze-HDI, Stack-Up kanye ne-Impedance zamaBhodi e-PC amancane aminyene
  3. Umhlangano we-BGA kanye ne-Double-Sided PCBA endaweni encane yebhodi
  4. Guqula Umklamo Wokushisa Ube Yimiyalelo Yokukhiqiza Elawulwayo
  5. I-Edge I/O, ama-Antenna kanye nokulingana kwe-Enclosure
  6. I-BOM, i-SKU, Ukulinganiswa Kwezindleko Nokukhiqiza Kwamapulatifomu Ekhompyutha Ahlanganisiwe
  7. Ukuhlolwa Okusebenzayo Kwama-PCBA Amancane Apholisiwe Afakwe Umoya kanye Nangenawo Umoya
  8. Izinto Okufanele Uzicabangele Nge-Global Sourcing Yama-PCBA Ahlanganisiwe Nama-Edge-Computing
  9. Thumela i-Highleap Idatha Edingekayo Ekubuyekezweni Kokukhiqiza Ama-PC Amancane

I-PC encane igxilisa iprosesa, inkumbulo, isitoreji, ukuguqulwa kwamandla, ukuxhumana okungenantambo kanye ne-I/O yangaphandle endaweni encane yebhodi lomama. Inselele yokukhiqiza akuyona i-miniaturization ngokwayo; iwukugcina isignali, amandla, ukusebenza kokushisa kanye nokwemishini lapho isikhala sokuhambisa, isikhala sezingxenye kanye nokususwa kwesikhala konke kunqunyelwe.

I-Highleap Electronics isekela amaphrojekthi ebhodi le-PC elincane eliphethwe ngamakhasimende kusukela ekukhiqizweni kwe-PCB ngokuhlanganiswa kwe-PCBA, ukutholakala kwezingxenye okuvunyiwe, ukuhlela kanye nokuhlolwa kokusebenza okuchazwe ngamakhasimende. Umklamo okhishwe unquma ukuthi ibhodi isebenzisa isakhiwo esivamile sezingqimba eziningi, i-HDI, ama-blind vias, ama-microvias noma ezinye izici zobuningi. Akukho sibalo sengqimba eyodwa noma ukwakheka kwezakhiwo okulungile kuyo yonke ikhompyutha encane.

Amabhodi omama e-compact x86, amabhodi amancane e-PC angenawo fan, amakhompyutha amancane afakiwe kanye namapulatifomu wokubala amancane angabelana ngezinkinga ezifanayo zokukhiqiza ngenkathi kusetshenziswa amaprosesa ahlukene kakhulu, izinhlobo zememori, isitoreji, inethiwekhi kanye nezinhlelo zokushisa. Ngakho-ke indlela yefektri kufanele yakhiwe ngokuzungeza ubuningi bangempela bephakheji, isethi yesixhumi esibonakalayo kanye nomklamo we-chassis.

1. Chaza Ukwakheka Okuncane Ngaphambi Kokukhetha Ukwakhiwa Kwe-PCB

Izinqumo zobuningi ziqala ngokubekwa kanye nokwakhiwa kokuxhumana. Iphakheji yeprosesa noma ye-SoC, ukubekwa kwememori, isitoreji se-M.2, imodyuli ye-Wi-Fi, izigaba zamandla, izilawuli ze-Ethernet kanye nezixhumi ezibheke eceleni zincintisana ngomzila olinganiselwe kanye nendawo yezingxenye. Uma lobo budlelwano bungazinzile, ukukhetha isakhiwo esibizayo kusenesikhathi kungavala iphrojekthi ibe yinkimbinkimbi yokwenziwa okungadingekile.

Isu Lesendlalelo/Nge-Strategy

I-Highleap ingabuyekeza ibhodi ekhishwe ngokubuyekezwa kwe -DFM ngaphambi kokwenziwa. Okufakwayo okuwusizo kakhulu yiphakheji ye-Gerber noma ye-ODB++, i-stack-up, itafula lokubhoboza, izidingo ze-impedance, i-BOM, i-CPL kanye nomdwebo womshini obonisa izindonga ezivalekile, ukuvuleka kwezixhumi, izindawo zokushisa kanye nezindawo zokufaka.

Umkhakha Wokukhiqiza

Inhloso yokukhiqiza kufanele kube ukwakhiwa kwebhodi okulula kakhulu okwanelisa umklamo kagesi nowemishini okhishwe ngesilinganiso senqubo esifanele. Unyawo oluncane aluvumeli ngokuzenzakalelayo i-HDI, kuyilapho ukuphuma kwe-BGA okuxinene noma uhlaka lwebhodi olunqunyelwe lungenza i-HDI ibe yisisombululo esisebenzayo.

2. Izinketho ze-HDI, Stack-Up kanye ne-Impedance zamaBhodi e-PC amancane aminyene

Lapho ubuningi bomzila budinga ama-vias angaboni, ama-microvia noma i-lamination elandelanayo, i-stack-up kumele ikhishwe njengesakhiwo sokukhiqiza kunokuba kube umdwebo wesendlalelo esibonakalayo. Ukujula kwe-microvia, ama-capture pads, agcwalisiwe noma avaliwe ngezidingo, ukujiya kwethusi, ukwakhiwa kwe-dielectric kanye nokulandelana kwe-lamination konke kuthinta isivuno kanye nezindleko.

Izilawuli Eziyinhloko Zokukhiqiza

  • Isendlalelo / Isu Elihambayo: Izinsiza zokukhiqiza ze-HDI PCB ze-Highleap zibalulekile uma i-motherboard encane izidinga ngempela lezo zici. Kumadizayini angahanjiswa nge-vias, ukwakhiwa kwe-multilayer evamile kungaba okonga kakhulu futhi kube lula ukukudlulisela ekukhiqizweni okuphindaphindiwe.
  • Umkhakha Wokukhiqiza: Izixhumi ezisheshayo ezifana ne-DDR, i-PCIe, i-USB, i-Ethernet kanye nezixhumanisi zokubonisa kufanele zilandele i-stack-up kanye ne-impedance geometry echazwe ngamakhasimende. Ukulawulwa kokukhiqiza kufanele kufake phakathi ukuqhubeka kwe-reference-plane, ngokushintshashintsha kanye nokuqinisekiswa kwe-impedance okuceliwe kunokuthembela kulebula yezinto ezibanzi. Uhlelo lwezinto kufanele lukhethwe ezidingweni zangempela zesiginali, ukushisa, ukujiya kanye nokuthembeka kwebhodi.

3. Umhlangano we-BGA kanye ne-Double-Side PCBA endaweni encane yebhodi

Ama-PCB ama-Mini PC avame ukubeka izingxenye zombili ukuze abuyisele indawo yebhodi. Lokho kwandisa ukuhlela inqubo ngoba ingxube yezingxenye zohlangothi lokuqala, ukugeleza kabusha kohlangothi lwesibili, isisindo sephakheji, isu le-stencil kanye namathuluzi okusekela kungasebenzisana. Izixhumi ze-BGA ezixineneyo, i-QFN, i-LGA kanye ne-fine-pitch nazo zinciphisa ukubekezelelana kokuphrinta noma ukubekwa okungalingani.

I-Highleap ingahlanganisa i-SMT PCB assembly nezilawuli ze-BGA assembly eziqondiwe lapho ingxube yephakheji idinga khona. Uhlelo lokwakha kufanele luveze ukuthi yiluphi uhlangothi oluhlanganiswa kuqala, yiziphi izingxenye ezidinga ukwesekwa okukhethekile, yiziphi izihlanganisi ezifihliwe ezihlolwa yi-X-ray nokuthi yiziphi izixhumi ezidinga ukusebenza okuhlukile.

Ukulawula Komhlangano

  • Buyekeza izimbobo ze-stencil ezizungeze ama-IC acwebezelayo kanye namaphakheji e-thermal-pad.
  • Lawula izingxenye ezizwela umswakama ngokwezidingo zokuphatha ezivunyiwe.
  • Sebenzisa ukuhlolwa kwengxenye yokuqala ukuqinisekisa inani lezinketho ezixinene kanye ne-polarity ngaphambi kokufakwa kweqoqo.
  • Hlola izingxenye ezinde kanye nokugcinwa kwezingxenye ezingaphansi kwesihlalo ngokumelene nemingcele ye-fixture kanye ne-chassis.
  • Nciphisa ukuhlelwa kabusha okungadingekile mayelana namaprosesa abizayo, amadivayisi ememori kanye nezixhumi ze-fine-pitch.

I-Highleap Electronics • Ukukhiqiza i-PCB kanye ne-PCBA

Cela Isibuyekezo Sokukhiqiza i-Mini PC PCB

Thumela idatha yakho ye-Gerber noma i-ODB++, i-BOM, kanye nobuningi. I-Highleap izobuyekeza ukwenziwa kwe-PCB, ukutholakala, ukuhlanganiswa, ukuhlela kanye nobubanzi bokuhlola bokwakhiwa okulawulwayo.

Cela Isilinganiso se-PCB kanye ne-PCBA → Xoxa Ngezidingo Zokukhiqiza →

✓ Ukubuyekezwa kwe-DFM kanye ne-DFA ✓ Uhlobo lokuphinda ukukhiqizwa ✓ Ukwenziwa nokuhlanganiswa kwe-PCB

4. Guqula Umklamo Wokushisa Ube Yimiyalelo Yokukhiqiza Elawulwayo

Izinhlelo ze-small-form-factor zinesikhala esincane sokugeleza komoya kanye nokusabalalisa ukushisa, ngakho-ke ukusebenza kokushisa kuncike kakhulu ekwakhiweni kwesistimu ephelele. Ifektri ye-PCB ayikwazi ukudala isisombululo sokushisa esanele ngokushintsha ithusi noma ukwengeza ama-via ngaphandle kwemvume yomklamo. Esikhundleni salokho, imidwebo ye-PCB ekhishwe kanye neyomhlangano kufanele ibone amasimu e-thermal-via, izindawo zethusi, izindawo zokufaka i-heatsink, izindawo ze-thermal-interface kanye nanoma yiziphi izingxenye ukuphakama noma indawo yazo kubalulekile efrijini.

Izindawo Zokuxhumana Ezishisayo

Kulayini we-PCBA, izindawo ezihambisana nokushisa kufanele zivikelwe ekungcoleni nasekulimaleni komshini. Uma i-Highleap icelwa ukuthi ifake i-heat spreader, ifeni, i-thermal pad noma enye ihadiwe yokushisa evunyiwe, imiyalelo yokusebenza kufanele ichaze inombolo yengxenye, indawo, indlela yokubopha kanye nendawo yokuhlola.

Ukulawulwa Kwefekthri

Amaphrojekthi e-PC amancane angena-feni adinga ukuqashelwa okukhethekile ngoba indawo ebiyelwe ingaba yingxenye yendlela yokushisa. Ukuhlolwa kokusebenza kwezinga lebhodi akukwazi ukufakazela ukuthi uhlelo lokugcina luhlala ngaphakathi kwemingcele yokushisa kwezingxenye ngaphansi kwawo wonke umthwalo womsebenzi. Lokho kuqinisekiswa kungohlelo oluphelele lokushisa kanye nohlelo lokufaneleka kwesistimu lwekhasimende.

5. I-Edge I/O, ama-Antenna kanye ne-Enclosure Fit

Amabhodi amancane e-PC avame ukubeka i-USB, i-Ethernet, i-HDMI/DisplayPort, umsindo, amandla nezinye izixhumi ngqo onqenqemeni lwebhodi lomama. Amaphutha amancane okuqondanisa angabonakala ngokushesha lapho i-PCBA ifakwa endaweni ebiyelwe kahle noma ebunjiwe.

Izithiyo Ezingokomzimba

Umdwebo wokuhlanganisa kufanele ukhombe izihlalo zesixhumi kanye nedatha yomshini, kuyilapho umdwebo wokuvala kufanele uchaze ukuvuleka, izindawo zokuma kanye nezindawo zokuphazamiseka. Imiklamo engenantambo idinga nezixhumi ze-antenna ezivunyiwe, imizila yekhebula kanye nezindawo zokugcina ngaphandle. Uma umkhiqizo usebenzisa ibhodi elingaphambili elihlukile noma ibhodi lendodakazi elixhunywe yi-FPC noma ikhebula, leso sixhumi kufanele siphathwe njengengxenye yesethi ye-elekthronikhi elawulwayo kunesesekeli sokuhlanganiswa esingakahleleki.

Ukulawula Ukukhiqiza

Ukulawula ngomshini Umbuzo wokukhiqiza
Izixhumi ezibheke eceleni Ingabe isixhumi esihleli sihambisana nokuvulwa kweshasi ekhishwe kanye nesiqondiso sokufakwa?
Amamojula e-M.2 kanye nama-wireless Ingabe ikhona indawo yokuvula imojuli, ukugcina ihadiwe kanye nomzila we-antenna/ikhebula?
Isinki yokushisa noma i-heat spreader Ingabe izindawo zokufaka, izindawo zokugcina kanye nokuphakama kwezingxenye kuyafana ne-mechanical stack evunyiwe?
Ibhodi lendodakazi noma i-FPC Ingabe ukuqondiswa kwesixhumi, ubude bekhebula kanye nendlela yokugoba kuchaziwe?
Izimbobo zokufaka kanye nokuma Ingabe ibhodi lingaboshwa ngaphandle kokugoba noma ukulayisha izingxenye eziseduze?

6. I-BOM, i-SKU, Ukulinganiswa Kwezindleko Nokukhiqiza Kwamapulatifomu Ekhompyutha Ahlanganisiwe

Izinhlelo zekhompyutha ezihlangene zivame ukudala ukucushwa okuningi kusuka kubhodi elilodwa: izinketho ezahlukene zememori noma isitoreji, amamojula e-Wi-Fi, abalawuli be-Ethernet, amamojula eselula noma izici ze-I/O. I-PCB ehlanganyelwe ingasebenza kahle, kodwa kuphela uma ifektri ithola i-matrix ecacile yohlobo.

Ubuqotho be-BOM

I-Highleap ingafaka ukuthengwa kwezingxenye ngezingxenye ezilawulwa ngamakhasimende. Izingxenye ezizwela ipulatifomu kufanele zivalelwe noma zilawulwe ngokuvunywa, kuyilapho ama-passive angashintshaniswa ngempela angalandela imithetho yokuthengwa evunyelwene ngayo. I-BOM kufanele ibone noma yimaphi amamojula anikezwa ngamakhasimende nokuthi ngabe afakiwe futhi ahlolwe yi-Highleap noma yikhasimende ngemva kokuthunyelwa.

Ingozi ye-SKU / Lifecycle

Kuzinhlelo ze-OEM ezisebenza isikhathi eside, i-firmware kanye nokulawulwa kwe-SKU kufanele kuxhunywe ekubuyekezweni kwehadiwe. I-oda lokukhiqiza akufanele lincike kubasebenzisi abahumusha isiteketiso somkhiqizo njengokuthi “inguqulo engenabalandeli” noma “inguqulo ye-dual-LAN” ngaphandle kwephrofayili ye-BOM elawulwayo kanye nokuhlolwa.

Ukwanda Kokukhiqiza Nokulawulwa Kwezentengiselwano

Izindleko zebhodi le-Mini PC ziyakhuphuka lapho ubuningi buphoqa izendlalelo eziningi, i-lamination elandelanayo, ama-blind/microvia, ukubekezelelana okuqinile noma ukuhlolwa okunzima kakhulu. Izindleko zokuhlanganisa zingakhuphuka ngokubekwa okunezinhlangothi ezimbili, amaphakheji e-BGA, izixhumi ze-fine-pitch, imisebenzi ye-I/O ebhalwe ngesandla, amamojula anikezwa amakhasimende, uhlelo kanye nokuhlolwa okubanzi kokusebenza.

01

prototype

Ukwakhiwa kweprototype kufanele kubonise ukuthi yikuphi ukuguquguquka okudingekayo ngokwesakhiwo nokuthi yikuphi okusengenziwa lula. Uma ibhodi lingasuka esakhiweni se-HDI liye esakhiweni esivamile esinezingqimba eziningi ngaphandle kokushintsha ukusebenza kukagesi noma komshini, leso yisinqumo sezindleko esinengqondo. Uma i-HDI idingeka ukuthi iphume kwiprosesa futhi ihlangabezane nohlaka lwe-enclosure, ukuyisusa kushintsha kuphela ingozi ibe yindlela yokuqondisa noma yokuthembeka.

02

Umshayeli wendiza / i-NPI

Ngaphambi kokuphinda ukukhiqiza, qandisa i-stack-up eyamukelekile, ngesakhiwo, imithetho ye-BOM, isithombe sokuhlela, indlela yokuhlola kanye nanoma yimiphi imiyalelo yokuhlanganisa ngomshini. Leso sisekelo sokukhiqiza sibaluleke kakhulu kunentengo ye-prototype yesikhathi esisodwa.

Cela Isibuyekezo Sokukhiqiza i-Mini PC PCB

7. Ukuhlolwa Okusebenzayo Kwama-PCBA Amancane Apholisiwe Afakwe Umoya kanye Nangenawo Umoya

Ukuhlolwa kwe-Mini PC PCBA kufanele kuqinisekise imisebenzi ebucayi ekukhiqizeni ngaphambi kokuba ibhodi inyamalale ngaphakathi kwe-chassis encane. Kuye ngomklamo, umzila wokuhlola ungafaka ukuhlolwa kwesitimela/okufushane, ukuhlonza i-firmware, ukutholwa kwememori, izixhumi zesitoreji, isixhumanisi se-Ethernet, amachweba akhethiwe e-USB/display, imiphumela yokulawula abalandeli kanye nokuhlolwa okungenantambo noma okuphathelene nemingcele okuchazwe amakhasimende.

Imisebenzi Yezinga Lesistimu

I-Highleap ingenza ukuhlolwa kokusebenza kwe-PCB kusuka ezinqubweni ezinikezwa amakhasimende kanye nemikhawulo yokwamukelwa. Uma kudingeka ukuqinisekiswa kokushisa, ukusebenza kwe-acoustic noma ukuzinza komsebenzi wesikhathi eside, lezo zivivinyo kufanele zichazwe ngokwehlukana ngoba zingadinga indawo yokugcina, i-cooler, umthwalo wesofthiwe kanye nezimo zemvelo.

8. Izinto Ezicatshangelwayo Zokuthola Imithombo Yomhlaba Wonke Yama-PCBA Ahlanganisiwe Nama-Edge-Computing

Ihadiwe ye-Mini PC isetshenziswa emakilasini omkhiqizo angaphezu kwelilodwa: izinhlelo zehhovisi ezihlangene, ama-embedded compute nodes, ama-edge gateways kanye namakhompyutha amancane ezimboni angasebenzisa i-dense motherboard, kodwa izidingo zawo ze-I/O, ukushisa kanye nomjikelezo wokuphila ziyahlukahluka. Lokho kwenza i-geography ibe wusizo njengomongo wokuthengwa, hhayi njengesizathu sokuphoqelela i-mini PC ngayinye ekwakheni okukodwa.

I-United States ne-Canada: Izinhlelo zehadiwe ze-Prototype-to-Scale

Kumaqembu ahlola umenzi we-PCB we-PC encane eShayina , i-RFQ kufanele ibonise abashayeli bokuqina kwangempela: iphakheji yeprosesa noma ye-SoC, ukwakheka kwememori, isitoreji se-M.2, i-Ethernet, okukhiphayo kokubonisa, amamojula angenantambo, okokufaka kwamandla kanye nemikhawulo yokuvala. Umhlinzeki angabe esenquma ukuthi ukwenziwa okuvamile kwezingqimba eziningi kwanele noma ukuthi umklamo okhishwe udinga izici ze-HDI.

IJalimane, iNetherlands kanye ne-UK: Ukuhlanganiswa Kwezimboni kanye Ne-Edge-Computing

Amaphrojekthi e-compact-computing aseYurophu avame ukuhlala ngaphakathi komshini omkhulu, i-kiosk, ipulatifomu yokuzenzakalela noma uhlelo lokusebenza lwenethiwekhi. Kumhlinzeki we-PCBA encane yokuhlanganisa i-PC , ukufinyelela kwesixhumi, i-datum yokufaka, indawo yesixhumi esishisayo, ukucushwa okungena-feni uma kuqhathaniswa nokuphola kwefeni, i-firmware yokusebenza kanye nezinqumo ze-BOM zesikhathi eside kungabalulekile njengosayizi webhodi.

IJapan, iNingizimu Korea kanye neSingapore: Ukuhlanganiswa Kwezinto Ezisebenza Ngogesi Nokuphakelwa Okuphezulu

Amaqembu obunjiniyela kulezi zimakethe zobuchwepheshe zase-Asia-Pacific angaphatha izinto ezithuthukisiwe, ukupakisha kanye nokuhlanganiswa kwezinhlelo. Uma kuqhathaniswa umhlinzeki we-PCB webhodi le-motherboard lekhompyutha elincane , ubufakazi obuwusizo buhlanganisa ukwenziwa kwe-stack-up okulawulwayo, ukulawulwa kwenqubo ye-BGA, ukuhlanganiswa okunezinhlangothi ezimbili, i-X-ray lapho kuchazwe khona, ukutholakala okuvunyelwe kanye nomzila wokuhlola osebenzayo ophindaphindwayo.

Imodeli yokukhiqiza yamazwe ngamazwe ye-Highleap ingasekela i-prototype, i-NPI kanye nokukhiqizwa okuphindaphindiwe. Faka izwe lapho uya khona kanye nokubikezela ngesethi yamafayela obuchwepheshe ukuze ukupakisha, ukuthutha, ukuzibophezela kwezinto kanye nokulindela kokukhiqiza okuphindaphindiwe kubonakale ngesikhathi sokucaphuna.

9. Thumela i-Highleap Idatha Edingekayo Ekubuyekezweni Kokukhiqiza Ama-PC Amancane

Ukuze uthole ikhotheshini encane ye-PCB/PCBA ye-PC, nikeza ulwazi lwe-Gerber noma i-ODB++, ukuqoqa nokufaka, i-BOM, idatha yokukhetha nokubeka, ukudweba komhlangano, ubungako kanye nesimo sokubuyekeza. Engeza ukudweba komshini, ulwazi lokuhlanganisa ukushisa kanye nenqubo ye-firmware/yokuhlola uma leyo misebenzi iyingxenye yobubanzi bokukhiqiza.

Ukuhlolwa Kwemboni

I-Highleap ingabuyekeza iphakheji yokwenziwa kwe-PCB, ukusebenziseka kwe-HDI lapho kudingeka khona, ukuhlanganiswa kwe-PCBA, ukuthola ulwazi, ukuhlola kanye nokuhlolwa okuchazwe amakhasimende. Thumela amafayela ngekhasi lesilinganiso se-PCB assembly.

Izixazululo ze-Highleap PCB kanye ne-PCBA - cela ikhotheshini

Posts Kunconywe

Ungasithola kanjani isilinganiso sama-PCB

Ake siqhube ukuhlaziywa kwe-DFM/DFA bese sibuyela kuwe nombiko. Ungalayisha amafayela akho ngokuphephile ngewebhusayithi yethu. Sidinga ulwazi olulandelayo ukuze sikunike isilinganiso:

    • Gerber, ODB++, noma .pcb, spec.
    • Uhlu lwe-BOM uma udinga ukuhlangana
    • Ubuningi
    • Isikhathi sokushintsha
Ngokungeziwe ekwenziweni kwe-PCB, sinikeza uhla olubanzi lwezinsizakalo ze-elekthronikhi, okuhlanganisa i-PCB design, i-PCBA, nezixazululo ze-turnkey. Kungakhathaliseki ukuthi udinga usizo ngokwenza i-prototyping, ukuqinisekiswa kwedizayini, ukuthola ingxenye, noma ukukhiqizwa ngobuningi, sihlinzeka ngosekelo olusuka ekupheleni ukuze siqinisekise impumelelo yephrojekthi yakho.

Ngezinsizakalo ze-PCBA, sicela unikeze i-BOM yakho (I-Bill of Materials) kanye nanoma yimiphi imiyalelo ethile yomhlangano. Siphinde sinikeze ukuhlaziya kwe-DFM/DFA ukuze uthuthukise imiklamo yakho ukuze yenziwe futhi ihlanganiswe, ukuqinisekisa inqubo yokukhiqiza eshelelayo.

    Sitshele Ngephrojekthi Yakho Ye-PCB

    Awekho amafayela okuklama okwamanje? Akunankinga. Yabelana ngalokho okwaziyo, futhi sizolandela uma kudingeka imininingwane eyengeziwe.



    Faka amafayela (ngokuzikhethela)

    Amafayela e-PCB, i-BOM, i-PDF/STEP, i-TXT, izithombe, i-ZIP/RAR/7Z · Isamba esiphezulu esingu-50 MB