HF/NFC ndi UHF RFID zolowera zonyowa kapena zowuma zokhala ndi tchipisi tanthawi zonse, tinyanga, mawonekedwe ozungulira kapena ma sheet, ma encoding ndi kutembenuza zilembo zamakadi, kugulitsa, mayendedwe, kulongedza ndi kutsata katundu padziko lonse lapansi.
Inlay / Prelam
Wallis
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Wallis imapereka zolowetsa zonyowa za RFID, zoyikamo zowuma ndi ma tag osinthika a makadi apamwamba kwambiri, ogulitsa, zogulira, zolongedza, laibulale, zochitika, kufufuza katundu ndi ntchito zozindikiritsa malonda. Ukadaulo womwe ulipo ukuphatikiza 13.56MHz HF/NFC ndi 860–960MHz UHF RAIN RFID.
Zolowera zonyowa zimaphatikizapo zomatira zomwe sizimva kukakamiza komanso cholumikizira chosinthira zilembo kapena kugwiritsa ntchito mwachindunji. Zowuma zowuma zimakhala ndi msonkhano wa chip-ndi-mlongoti pa chonyamulira popanda zomatira zomaliza ndipo zimapangidwira kuti zipitirire kutembenuza, kuyika, kuyika kapena kuphatikiza mu chinthu china.
Ogula amatha kusintha chip, protocol, kukula kwa mlongoti, miyeso ya inlay, zomatira, zopukutira kapena mawonekedwe a pepala, encoding, chizindikiro choyipa, njira yokhotakhota ndi kuyika. Kuchita komaliza kwa RF kuyenera kutsimikiziridwa pazinthu zenizeni zogwiritsira ntchito ndi makina owerenga.
Funsani Quote ya Wholesale RFID Inlay
| Kufotokozera | Wet Inlay | Dry Inlay |
|---|---|---|
| Kapangidwe | RFID chip + etched antenna + chonyamulira + zomatira zovutirapo + zomatira zotulutsa | RFID chip + yokhazikika mlongoti pa PET kapena chonyamulira china chovomerezeka, popanda zomatira ndi liner |
| Zosankha pafupipafupi | 13.56MHz HF/NFC kapena 860–960MHz UHF | 13.56MHz HF/NFC kapena 860–960MHz UHF |
| Zosankha za Protocol | ISO/IEC 14443 Type A, ISO/IEC 15693, NFC Forum mitundu kapena EPC Kalasi 1 Gen 2 / ISO/IEC 18000-63 | Zosankhidwa molingana ndi chip ndi chomaliza chophatikizidwa |
| HF/NFC Chip Zitsanzo | NTAG213/215/216, MIFARE Ultralight, MIFARE Classic, DESFire, ICODE, F08 ndi zina zomwe zikugwirizana | Mabanja a chip omwewo angakambidwe ngati ali oyenera kugwirizanitsa komaliza |
| Zitsanzo za UHF Chip | NXP UCODE, Impinj M730/M750 kapena mabanja a Monza, Alien Higgs ndi zosankha zina zachindunji | Zosankhidwa molingana ndi kukumbukira kwa EPC/TID, kukhudzika, malo owerengera komanso mapangidwe omaliza a mlongoti |
| Zinthu za Antenna | Aluminiyamu yokhazikika kapena mkuwa | Aluminiyamu yokhazikika kapena mkuwa |
| Wonyamula | PET kapena chonyamulira china chovomerezeka | PET kapena chonyamulira china chosankhidwa kuti chiyimire kapena kuyika |
| Mtundu Wofananira Wotumizira | Pereka mtundu wosinthira zilembo ndikugwiritsa ntchito zokha | Pereka kapena mtundu wa pepala molingana ndi khadi, tag kapena ndondomeko yoyika zinthu |
| Kusintha mwamakonda | Chip, mlongoti, zomatira, kukula-odulidwa, mawonekedwe a mpukutu, encoding ndi kutembenuka kwa zilembo | Chip, antenna, chonyamulira, pepala kapena mawonekedwe a roll, malo otchingira ndi kapangidwe kaphatikizidwe |
| Ntchito Zofananira | Zolemba za RFID, zomata za NFC, ma tag ogulitsa, makatoni, katundu, matikiti ndi kuyika mwanzeru | Makhadi anzeru a PVC/PET/PC, zomangira m’manja, matikiti, zinthu zopangidwa ndi zinthu zoumbidwa ndi ma transponder ophatikizidwa |
Zosankha zapafupipafupi zamasamba zikuphatikiza 869-915MHz UHF, 13.56MHz ISO/IEC 14443 ndi 13.56MHz ISO/IEC 15693. Chip yeniyeni, gulu la UHF lachigawo, mlongoti ndi kumanga komalizidwa ziyenera kutsimikiziridwa musanatchulidwe.
| Kufananiza | Kunyowa Kulowetsedwa | Kowuma | Kumatembenuzira RFID Label |
|---|---|---|---|
| Zomatira | Kuphatikizidwa | Sanaphatikizidwe m'mapangidwe omaliza ogwiritsira ntchito | Zomatira zamtundu wa ntchito zomwe zasankhidwa pamalo olembedwa |
| Kutulutsa Liner | Kuphatikizidwa | Nthawi zambiri samaperekedwa ngati chomaliza chodzimatira chomanga | Kuphatikizidwa molingana ndi kutembenuka ndi kugawa |
| Zosindikiza za nkhope | Nthawi zambiri pamafunika kutembenuka kwina kwa lebulo yomaliza yosindikizidwa | Kuwonjezedwa pakuyika kapena kutembenuka ngati kuli kofunikira | Pepala, PET, PP kapena zinthu zina zosindikizidwa zovomerezeka |
| Wogula Wamba | Chosinthira zilembo, kampani yonyamula katundu kapena chophatikiza cha RFID | Wopanga makhadi, chophatikiza zinthu kapena wopanga ma tag | Wogulitsa, mtundu, nyumba yosungiramo zinthu, woyendetsa katundu kapena pulogalamu yomaliza |
| Kugwiritsa Ntchito Kwambiri | Kupititsa patsogolo kapena kugwiritsa ntchito mwachindunji | Lamination, encapsulation kapena embedding mankhwala | Kusindikiza, encoding ndi kulumikiza komaliza ku chinthu |
| Chitetezo Chachilengedwe | Zimatengera chonyamulira, zomatira ndi yomaliza otembenuzidwa yomanga | Zimatengera encapsulating kapena laminating zakuthupi | Zimatanthauzidwa ndi mawonekedwe athunthu a nkhope, zomatira, zokutira, zopangira lamination ndi m'mphepete |
Zolowetsera zonyowa ndizoyenera pamene wogula akufuna chigawo chodzimatirira cha RFID chophatikiza ndi pepala kapena masitomu a nkhope, kusindikiza, kudula kufa ndi kutembenuka komaliza.
Zowuma zowuma zimakhala zoyenera pamene chigawo cha RFID chidzayikidwa mu khadi, chophatikizidwa mu chinthu chopangidwa, chotsekedwa mkati mwa wristband kapena chophatikizidwa mu zomangamanga zina popanda zomatira zolembera.
Chizindikiro chosinthidwa chimakondedwa pamene kasitomala akufuna chinthu chokonzeka kusindikiza kapena chosindikizidwa kale chokhala ndi zinthu zomaliza za nkhope, zomatira, kudula kufa, encoding ndi mipukutu yomwe yamalizidwa kale.
| Kuyerekeza kwa | HF/NFC Inlay | UHF Inlay |
|---|---|---|
| pafupipafupi | 13.56MHz | 860-960MHz ndi malingaliro osintha zigawo |
| Common Protocols | ISO/IEC 14443 Mtundu A, ISO/IEC 15693 ndi mitundu ya NFC Forum | EPC Kalasi 1 Gen 2 / ISO/IEC 18000-63 |
| Makhalidwe Abwino Owerenga | Kujambula kwachidule kapena kuwerenga moyandikira | Kutalika kochepa mpaka mamita angapo malinga ndi mlongoti, owerenga, zinthu ndi chilengedwe |
| Kugwiritsa Ntchito Smartphone | Zotheka ndi tchipisi tabwino za NFC komanso mawonekedwe amafoni othandizira | Nthawi zambiri zimafunikira wowerenga wodzipereka wa UHF |
| Ntchito Zofananira | Kulumikizana kwa NFC, malaibulale, kutsimikizika, matikiti, makadi ndi zizindikiritso zanthawi zazifupi | Zovala, zosungira, katundu, makatoni, katundu ndi kuwerenga mochuluka |
| Memory Terms | Chip UID, kukumbukira kwa ogwiritsa ntchito, masamba, midadada, mapasiwedi ndi chitetezo | EPC, TID, kukumbukira kosungidwa ndi kukumbukira kwa ogwiritsa ntchito |
Ma inlay omwe amagwira ntchito pafupipafupi atha kugwiritsa ntchito ma protocol osiyanasiyana, ma chip command, kapangidwe ka kukumbukira ndi ntchito zachitetezo. Perekani owerenga ofunikira, chip kapena protocol m'malo mongosankha pafupipafupi.
Kuyika kwa HF kumatha kuwerengedwa mkati mwa ma centimita angapo, pomwe zolowera za UHF zoyenera zimatha kufika mamita angapo. Kuchita komaliza kumatengera chip, mlongoti, mphamvu ya owerenga, gulu lachigawo, zinthu zolembedwa, kuwongolera ndi kuphatikiza.
Mlongoti uyenera kusankhidwa komwe ukupita komanso malo owerengera. Chopangidwa chokongoletsedwa m'chigawo chimodzi cha UHF mwina sichingafanane ndi china.
Tchipisi ta NFC Forum Type 2 izi zimasankhidwiratu ma URL, mbiri ya digito, zambiri zamalonda ndi kuyanjana kwa ogula. Amapereka kuthekera kosiyanasiyana kwa kukumbukira kwa ogwiritsa ntchito, kotero zomwe zili mu NDEF ziyenera kutsimikiziridwa musanasankhe chip.
Zogulitsa za MIFARE Classic, Ultralight kapena DESFire zitha kufunidwa kuti mupeze mwayi wogwirizana, umembala, mayendedwe, zochitika kapena makina otetezedwa a smart-card. Owerenga, kugwiritsa ntchito, makiyi ndi mapulogalamu ayenera kufanana ndi banja lenileni la chip.
ICODE inlays imatha kuthandizira laibulale yogwirizana, katundu ndi kugwiritsa ntchito makadi oyandikana nawo. Sayenera kuganiziridwa kuti amagwira ntchito ndi wowerenga aliyense wa ISO/IEC 14443.
Kusankhidwa kwa chip UHF kuyenera kuganizira za kukumbukira kwa EPC, zofunikira za TID, kukumbukira kwa wogwiritsa ntchito mwakufuna, kukhudzika, kupeza kapena kupha mapasiwedi komanso kuyanjana ndi owerenga ndi pulogalamu yamapulogalamu.
Zogulitsa za HF/NFC zitha kuwonetsa chip UID, pomwe zinthu za UHF nthawi zambiri zimakhala ndi TID yafakitale komanso kukumbukira kwa EPC. Tchulani chizindikiritso chomwe chiyenera kuwerengedwa, kusindikizidwa, kusindikizidwa kapena kufananizidwa ndi nkhokwe yamakasitomala.
Ntchito zitha kuphatikiza kulemba kwa URL ya NDEF, encoding ya EPC, serial data, mapasiwedi ndi kutseka kwapadera kwa chip. Maloko osatha ayenera kugwiritsidwa ntchito pambuyo potsimikizira zomaliza chifukwa mwina sangasinthe.
Zolowetsera zonyowa zimaphatikizapo zomatira ndi liner yotulutsa, zomwe zimawapangitsa kukhala oyenera kusinthidwanso kwa zilembo. Zomatirazo ziyenera kugwirizanitsidwa ndi mapepala, galasi, pulasitiki, nsalu, malo opaka utoto kapena zipangizo zina zogwiritsira ntchito.
Pepala, PET, PP kapena zinthu zina za nkhope zimatha kukhala laminated pamwamba pa inlay kuti apange chizindikiro chosindikizidwa cha flexographic, digital, thermal-transfer, direct-thermal kapena UV kusindikiza.
Zolowetsa zonyowa nthawi zambiri zimaperekedwa pamipukutu kuti isinthe, kusindikiza, kusindikiza kapena kugwiritsa ntchito zokha. Kukula kokulirapo, m'lifupi mwa ukonde, phula ndi njira yokhotakhota ziyenera kufanana ndi zida zakumunsi.
Mphamvu zomatira ndi magwiridwe antchito a RF ziyenera kuyesedwa pazomwe zili zenizeni. Chitsulo, chamadzimadzi, pulasitiki yodzadza ndi kaboni, zowunjika wandiweyani ndi malo opindika zimatha kusintha magwiridwe antchito.
Zowuma zowuma zimatha kuphatikizidwa muzinthu zamakhadi anzeru a PVC, PET kapena polycarbonate pomwe milingo ya mlongoti, malo a chip, makulidwe onse ndi kutentha kwa lamination zimagwirizana ndi kapangidwe ka makhadi.
Zowuma zowuma zimatha kuzunguliridwa kapena kuyikidwa muzitsulo, makiyi, matikiti, mabaji ndi zinthu zopangidwa pogwiritsa ntchito zomangamanga zomwe zimateteza chip ndikusunga kuwongolera kwa mlongoti.
Zigawo zovundikira, zomatira, mapulasitiki, inki zosindikizira, zida zachitsulo ndi zomwe zili mkati mwazinthu zimatha kutulutsa mlongoti. Yesani mankhwala omalizidwa m'malo mongodalira zotsatira za mpweya waulere.
Zowuma zowuma zitha kukambidwa mu mpukutu kapena mawonekedwe a pepala molingana ndi kudulidwa, kudula, kukhomerera kapena kusonkhanitsa zinthu.
Miyezo ya antenna imatsimikizira mawonekedwe a RF, pomwe miyeso ya inlay kapena kufa imatsimikizira malo onyamulira omwe amafunikira posintha kapena kuyika. Onse awiri ayenera kuwonekera pa chojambula chovomerezeka.
Tchulani mainchesi amkati amkati, mainchesi akunja akunja, m'lifupi mwa ukonde ndi kuchuluka kwa ma inlays pa mpukutu uliwonse kuti zinthuzo zigwirizane ndi makina a kasitomala.
Pitch, mayendedwe apaintaneti, mawonekedwe a chip, malo apaintaneti ndi mapindikidwe amkati kapena akunja ayenera kufanana ndikusintha, kusindikiza kapena kugwiritsa ntchito.
Ma sheet owuma amafunikira matrix ovomerezeka omwe amawonetsa malo a antenna, momwe chip chimayendera, kukula kwa mapepala, zilembo zolembetsera ndi kugwirizana ndi kapangidwe komaliza kakhomerera makadi.
Fotokozani ngati zolowetsa zolakwika zimachotsedwa, zolembedwa kapena kusungidwa ndikukhazikitsa kuchuluka kwa magawo pamipukutu iliyonse. Mizere yopangira zokha ingafunike kuwongolera mosamalitsa mpukutuwo.
Zolowetsera zonyowa za UHF ndi zilembo zosinthidwa zimatha kuthandizira chizindikiritso cha mulingo wazinthu, kuwerengera masheya, kulandira, kubwezeretsanso ndi kuwonekera kwapaintaneti zikagwiritsidwa ntchito ndi owerenga oyenera ndi mapulogalamu.
Zolemba za RFID zimatha kuzindikira makatoni, ma tote, maphukusi, zotengera zomwe zingagwiritsidwenso ntchito ndi katundu wosungira. Mlongoti ndi kuyika ziyenera kukhala zoyenerera pa phukusi lenileni ndi zomwe zili mkati.
Zolowetsa zonyowa za NFC zitha kusinthidwa kukhala zomata zomwe zimalumikiza mafoni am'manja omwe amagwirizana ndi chidziwitso chazinthu, zitsimikizo, malangizo, kukwezedwa kapena ntchito zotsimikizira.
Ma inlays owuma a HF amatha kulumikizidwa kuti athe kupeza, umembala, masukulu, hotelo kapena makhadi oyendera pamene chip, mlongoti ndi kapangidwe ka makhadi zimagwirizana ndi dongosolo lowerenga lomwe mukufuna.
Zolemba za ISO/IEC 15693 HF zimatha kuthandizira laibulale yofananira, zolemba ndikusunga mayendedwe a ntchito molingana ndi owerenga, mawonekedwe a data komanso kuyika.
Zolowetsa zimatha kuphatikizidwa mu matikiti, mabaji ndi ma wristbands kuti adziwe, kupeza ndi kuchitapo kanthu. Chip memory, chitetezo ndi kuzungulira kowerengera ziyenera kusankhidwa papulatifomu.
RFID imatha kuthandizira zida, zida ndi zinthu zokhazikika, koma malo ovuta, malo achitsulo, mankhwala ndi kutentha kwakukulu kungafunike chizindikiro chomalizidwa chapadera m'malo moyika mokhazikika.
Kulowetsedwa konyowa, kuyika kowuma kapena kumalizidwa kwa zilembo za RFID
Ntchito ndi cholinga cha bizinesi
HF/NFC 13.56MHz kapena UHF 860–960MHz
Protocol yofunikira ndi chip yokonda
Reader, encoder, smartphone kapena card-system model
Zinthu zolembedwa, zomwe zili mkati mwazogulitsa ndi malo okwera
Zowerengera zomwe mukufuna, momwe mumawerengera komanso momwe mumawerengera
Miyezo ya antenna, miyeso ya inlay ndi zilembo zomaliza kapena masanjidwe amakhadi
Zomatira, zinthu zakumaso, liner ndi zofunikira zachilengedwe
Encoding, mapasiwedi, UID/TID/EPC zofananira ndi zofunika kusindikiza
Pereka pachimake, m'lifupi mwa intaneti, phula, mayendedwe okhotakhota kapena matrix
Kulamula kuchuluka, zitsanzo, kopita ndi dongosolo lofunika
Tumizani Mafotokozedwe Anu a Inlay
Tsamba loyambira likunena kuti zoyikapo zimayang'aniridwa kwathunthu ndi magetsi komanso mawonekedwe. Dongosolo la madongosolo liyenera kufotokozera njira yoyesera, muyezo wovomerezeka, kasamalidwe ka zolakwika ndi zolemba zowunikira zomwe wogula amafunikira.
Yesani zoyikapo ndi zomwe mukufuna kuwerenga, mphamvu, mlongoti, chinthu cholembedwa, mawonekedwe ndi chilengedwe. Kutalikirana kwaulele sikumatsimikizira magwiridwe antchito amtundu wofanana pambuyo potembenuza zilembo kapena kuyimitsa makhadi.
Zitsanzo zonyowa zolowetsedwa ziyenera kuyesedwa kuti zitulutsidwe, tack, peel, kudula kufa, kuvula matrix, kudyetsa mpukutu ndi kugwirizana ndi zinthu zakumaso ndi malo ogwiritsira ntchito.
Zoyikamo zowuma ziyenera kuyesedwa kudzera mu njira yonse yoyatsira kapena kuumba kuti chip chikhalepo, kulumikizana kwa mlongoti, kulembetsa, kusalala komanso kuwerengera pambuyo pomaliza.
UID yosungidwa, TID, EPC, NDEF, mapasiwedi ndi data yamakasitomala ziyenera kuwerengedwanso ndikuyerekeza ndi fayilo yovomerezeka. Zosintha zosindikizidwa ziyenera kukhala zogwirizana ndi zolemba zamagetsi.
Tsimikizirani kuwerengera, kukwera kwake, kuyan'anila kwa intaneti, mayendedwe okhotakhota, pachimake, magawo, zilembo zoyipa, masanjidwe a mapepala ndi zoyika zodzitchinjiriza musanatumizidwe.
Ogula atha kupeza zomatira zonyowa, zoyikapo zouma zophatikizika ndi zilembo zosinthidwa kuti zisindikizidwe komaliza kapena kugwiritsa ntchito pulogalamu imodzi.
Wallis atha kukambirana za ISO/IEC 14443, ISO/IEC 15693 ndi EPC Gen2 zamitundu yosiyanasiyana yowerengera, owerenga, kukumbukira ndi zofunikira pakugwiritsa ntchito.
Miyezo ya antenna, kukula kwa inlay, mawonekedwe a roll, matrices a pepala, zomatira ndi mawonekedwe omaliza ophatikizira akhoza kuwunikiridwa molingana ndi zida za kasitomala.
NDEF, EPC, serial data, mapasiwedi, kuwerenga kwa UID/TID, ma QR codes, barcode ndi ma rekodi ofananira zitha kukambidwa molingana ndi chip chosankhidwa.
Kuyesa kwachitsanzo kumachepetsa chiopsezo cha kusagwirizana kwa owerenga, zomatira zofooka, masanjidwe osayenera, kutulutsa mlongoti kapena kulephera panthawi yolumikizira makhadi.

Pemphani Zitsanzo ndi Mitengo Yambiri
Cholowa chonyowa chimaphatikizapo zomatira zolimbana ndi kupanikizika komanso cholumikizira chotulutsa. Kuyika kowuma kumaperekedwa popanda chomangira chomaliza chodzimatirira ndipo chimapangidwira kuyika, kuyimitsa kapena kutembenuka kwina.
Osati kwenikweni. Zolemba zomalizidwa nthawi zambiri zimakhala ndi zinthu zosindikizidwa kumaso, zomatira-zomwe zimagwiritsidwa ntchito, kudula komaliza, kusindikiza ndi kusindikiza pamwamba pa RFID inlay.
Inde, pamene mlongoti, chonyamulira, malo a chip, kutentha kwa lamination, makulidwe onse ndi masanjidwe a makhadi apangidwira cholowera chosankhidwa. Kuyesa kwachitsanzo kwa lamination kumalimbikitsidwa.
Inde. Zosankha zamasamba zomwe zilipo zikuphatikiza 13.56MHz ISO/IEC 14443, 13.56MHz ISO/IEC 15693 ndi zinthu za UHF. Chip yeniyeni ndi mlongoti ziyenera kutsimikiziridwa.
Kuyika kwa HF nthawi zambiri kumawerengedwa kwakanthawi kochepa, pomwe ma UHF amatha kuwerenga kuchokera paufupi mpaka mita zingapo. Chotsatira chomaliza chimadalira chip, antenna, owerenga, dera, zinthu, kuyang'ana ndi kuphatikiza.
Chopangidwa mwapadera chapawiri-frequency chimathandizira ma interface onse awiri. Inlay yokhazikika ya NFC ndi inlay yokhazikika ya UHF ndi zinthu zosiyanasiyana.
Amatha kusinthidwa ndi pepala loyenera kapena zinthu zopangira nkhope zosindikizira. Tchulani luso la chosindikizira, inki kapena riboni, lebulo pamwamba ndi zofunika kulimba.
Mlongoti wamakono ndi miyeso ya inlay imatha kuwunikiridwa molingana ndi chip impedance, magwiridwe antchito ofunikira, malo omwe alipo, zinthu zolembedwa ndi kuchuluka kwa dongosolo.
Zosankha zingaphatikizepo NTAG, MIFARE, DESFire, ICODE, F08, NXP UCODE, Impinj kapena Alien mabanja. Kupezeka ndi kuyenerera ziyenera kutsimikiziridwa pa ntchito yeniyeni.
Encoding ndi ntchito zolembera deta zitha kukambidwa molingana ndi chip. UID ikhoza kukhala yokhazikitsidwa ndi fakitale, pomwe EPC, NDEF, mapasiwedi ndi deta ya ogwiritsa ntchito zitha kusinthidwa kutengera zomwe zagulitsidwa.
Inde. Zolowetsera zonyowa nthawi zambiri zimaperekedwa m'mipukutu, pomwe zoyikapo zowuma zimatha kuperekedwa m'mipukutu kapena ma sheet malinga ndi kutembenuza kapena kuyika makadi.
Tsamba loyambira likunena kuti zitsanzo zilipo ndipo kutumiza kumalipidwa ndi kasitomala. Tsimikizirani chip, mlongoti ndi mawu achitsanzo ndi Wallis musanatumize.
Tsamba loyambira limalemba pafupifupi masiku 3-7 a zitsanzo ndi masiku 10 mpaka 20 kuti apange zochuluka, kutengera makonda. Tsimikizirani ndandanda wapano pofunsira mawu otengera mawu.
Tsamba loyambira likunena kuti kuyezetsa magetsi ndi kuyang'ana kowoneka kumachitika. Ogula akuyenera kufotokozera zofunikira zilizonse za RF, encoding, roll, lamination kapena traceability pamatchulidwe ogula.
Tumizani mtundu wa inlay, ma frequency, protocol, chip, owerenga, zida zogwiritsira ntchito, mtundu wa chandamale, mlongoti ndi kukula kwake, mtundu wa roll kapena pepala, encoding, kuchuluka, kuyika ndi kopita.
Yambitsani Ntchito Yanu Nafe