Please Choose Your Language
Lehae » Litaba » Joang U Khetha Motlakase Cargo Tricycle?

U Khetha Li-Tricycle Tsa Motlakase oa Motlakase Joang?

Maikutlo: 0     Mongoli: Nako ea Phatlalatso ea Mohlophisi oa Sebaka: 2026-08-30 Tšimoloho: Sebaka

Botsa

konopo ea ho arolelana facebook
konopo ea ho arolelana twitter
konopo ea ho arolelana line
konopo ea ho arolelana wechat
konopo ea ho arolelana linkedin
konopo ea ho arolelana pinterest
konopo ea ho arolelana whatsapp
Share this share konopo

Ho khutlisa likoloi tsa likoloi kapa likoloi tsa baeti ho fokotsa likhase tsa khabone ho pholletsa le thepa ea litoropo. Basebeletsi ba likepe le likhoebo hangata ba leka phetoho ena ho fihlela ts'ebetso e tala ea letsatsi le letsatsi. Leha ho le joalo, phetoho ena e atleha feela ha koloi e lumellana hantle le mosebetsi oa hau oa letsatsi le letsatsi. Ho fetisoa ho feta tekano ka theko e rekiloeng ho e-na le ho tšoarella ha likaroloana hangata ho lebisa matlotlong a tsielehileng. Liforeimi tse fokolang le li-motor tse nyane li baka mekoloto ea ts'ireletso hanghang. Mefokolo ena e tla lula e sitisa phallo ea hau ea ts'ebetso. U hloka moralo o hlophisitsoeng, o thehiloeng bopaking pele o reka koloi efe kapa efe ea likepe. Tataiso ena e fana ka seo u se hlokang ho lekola lintlha tsa bohlokoa, matla a ho sebetsana, le ts'epahalo ea mofani oa thepa. U tla ithuta ho hokahanya litlhoko tsa mojaro oa moputso ntle le moroallo hammoho le matla a betri le sephetho sa koloi. Re tla boela re hlahlobe liphapang tse ikhethang lipakeng tsa meralo ea chassis ea ho kenya ka pele le e ka morao. Qetellong, o tla fumana tsebo e hlokahalang ho vet bahlahisi le ho netefatsa katleho ea nako e telele ea khoebo.

Lintlha tsa bohlokoa

  • Beha Torque Pele ho Lebelo le Phahameng: Bakeng sa meroalo e boima, koloi e bohareng ea torque e bohareng kapa e 'ngoe ea li-hub tse peli ha e khonehe.
  • Lekola Leoto la 'Nete: Libaesekele tse tharo li fana ka botsitso bo ke keng ba lekanngoa ka lebelo le tlase empa li hloka polokelo e pharalletseng ebile li na le matla a fapaneng a likhutlong ha a bapisoa le mabili a mabeli.
  • Tšehetso ea Bafani ke Tšobotsi: Ho fumaneha ha likarolo tsa morao-rao le litumellano tsa SLA li bohlokoa joalo ka letlapa la koloi.
  • Foromo e Bapisang Mosebetsing: Meralo ea ho kenya ka pele (tadpole) le e ka morao (delta) e sebeletsa linyeoe tse fapaneng tsa khoebo le tsa ts'ebeliso ea motho ka mong.

Ho Hlalosa Mekhoa ea Hao ea Katleho ea Ts'ebetso

Pele u hlahloba li-spec sheet, u tlameha ho hlalosa litlhoko tsa 'mele tsa litsela tsa hau tsa letsatsi le letsatsi. Ho reka li-trike tsa khoebo tse boima bakeng sa mosebetsi o bobebe oa courier ho senya lisebelisoa. Ka lehlakoreng le leng, ho reka mofuta oa boemo ba bareki bakeng sa ho hula liindasteri ho tiisa ho hloleha ha mochini ka potlako.

Payload Weight vs. Litlhoko tsa Bolumo

U tlameha ho khetholla pakeng tsa ho hula thepa e teteaneng le thepa e phahameng haholo. Lisebelisoa tse teteaneng li kenyelletsa lisebelisoa, lino, kapa thepa ea kaho. Thepa ea boleng bo phahameng e kenyelletsa liphutheloana tsa khateboto tse se nang letho, lipalesa tsa lipalesa, kapa korosari. Mosebetsi o boima Li-tricycle tsa thepa ea motlakase li ka sebetsana le liponto tse 500 habonolo, empa haeba lebokose la thepa le se na li-cubic volume, boima ba hau bo fetoha bo se nang thuso.

U lokela ho bala Gross Vehicle Weight Rating (GVWR) e hlokahalang bakeng sa ts'ebetso ea hau. Latela mehato ena ho fumana litlhoko tsa hau tsa 'nete tsa bokhoni:

  1. Beha boima ba hao bo boima ka ho fetesisa letsatsi le letsatsi.
  2. Kenya boima ba mokalli ea boima ka ho fetisisa ea tsamaisang koloi.
  3. Kenyelletsa boima ba litlatsetso life kapa life tsa morao-rao, joalo ka mabokose a liloko tse boima kapa litsi tsa sehatsetsi.
  4. Khetha baesekele e mabili a mararo e fanang ka GVWR bonyane ka 20% ho feta kakaretso ena e kopantsoeng ho thibela ho emisoa ho ea tlase.

Tsela ea Boemo ba Boemo le Lintho tsa 'Nete tsa Range

Theha bohole bo tiileng le liphetoho tse phahameng bakeng sa litsela tsa hau tse tloaelehileng. Hangata bahlahisi ba leka likoloi tlas'a maemo a loketseng sebakeng se bataletseng. Ha e le hantle, mefuta e boletsoeng ke moetsi e atisa ho theoha ka 30-40% tlas'a maemo a phahameng a ho lefa. Sephethephethe sa ho ema-o-ea-ea-tsamaea se ntša libeteri ka lebelo le leholo ho feta ho tsamaea ka sekepe. Ho potlakisa boima bo boima ho tloha setopong ho hloka li-spikes tse matla tsa matla. Haeba tsela ea hau e na le maralla, lebella ho theoha ho hoholo ha sebaka sa 'nete.

Tsebo ea Mopalami le Likotsi tsa ho Amohela

U tlameha ho amohela mokhoa o ikhethileng oa ho ithuta o amanang le likoloi tse mabili a mararo. Libaesekele tse mabili a mararo tse thata li sebetsa ka tsela e fapaneng haholo litseleng tse nang le meqhaka ha li bapisoa le tse tšekaletseng mabili a mabeli. Kaha ha ba itšetlehe, tsela e moepa e hulela koloi tselaneng. Bapalami ba tlameha ho its'oara khahlanong le moepa ona. Ntlha ea nako e lekaneng ea koetliso bakeng sa batsamaisi ba likepe kapa litho tsa malapa. Ho tlola nako ena ea ho tloaelana ho eketsa haholo kotsi ea likotsi tsa pele.

Litlhaloso tsa Core Electric Cargo Tricycle tse lokelang ho hlahlojoa

Bareki ba khoebo ba tlameha ho sheba ho feta lisebelisoa tsa papatso tse majabajaba. Ho tšepahala ha 'nete ho phela ka har'a lintlha tse nyane tsa boenjiniere ba koloi. Ho utloisisa metrics ena ho netefatsa hore likepe tsa hau li mamella kotlo ea letsatsi le letsatsi ea litoropo.

Mehaho ea Likoloi le Sephetho

Ha ho hlahlojoa electric cargo tricycle specifications , tsepamisa maikutlo ho torque ho e-na le ho noa metsi feela. Torque, e lekantsoeng ka Newton-metres (Nm), e laela matla a sebele a ho reteleha a sebelisoang mabiling. Enjene ea 250W e fanang ka 85Nm ea torque e tla hloa koloi ea 750W e hlahisang 40Nm feela. Bakeng sa ho hloa leralla le tšepahalang ha u ntse u nkile thepa e boima, 80Nm+ ke eona motheo o tiileng oa motheo.

U tlameha hape ho khetha lipakeng tsa li-motor tse bohareng le li-hub motors. Li-motors tsa Mid-drive li lula holim'a lipedali. Ba eketsa ts'ebetso ea mochini oa drivetrain. Sena se lumella enjene ho bilika hantle ho li-RPM tse phahameng le ha koloi e tsamaea butle leralleng. Li-hub motors li lula ka har'a lebili ka boeona. Li-motors tsa Dual-hub li fana ka redundancy e ntle haholo, empa li-drive tse bohareng hangata li fana ka ts'ebetso e phahameng ea ho hloa tlas'a mojaro o mongata.

Chemistry ea Battery le Compliance

Ts'ebetso ea khoebo e ke ke ea senya polokeho ea betri. E hloka setifikeiti sa UL 2849 kapa EN15194 ho latela lits'ebetso tsohle tsa betri. Litekanyetso tsena tse matla tsa liteko li thibela ho baleha ha mocheso le mello e kotsi. Batla lipakete tsa betri tse sebelisang lisele tse nang le bokhoni bo phahameng ho tsoa ho bahlahisi ba tsebahalang joalo ka Samsung kapa LG.

Se ke oa itšetleha feela ka lintlha tsa Amp-hora (Ah). Bala matla a 'nete ka Watt-hours (Wh) u sebelisa mokhoa o bonolo: Voltage (V) e atisitsoeng ka Amp-hours (Ah) e lekana le Watt-hours (Wh). Betri ea 48V 15Ah e fana ka 720Wh ea matla a ka sebelisoang. Linomoro tse holimo tsa hora ea Watt li fetolela ka kotloloho lefats'eng le lelelele la 'nete.

Kakaretso ea Maemo a Setifikeiti sa Betri

Kakaretso ea Sebaka se Tloaelehileng se Tsepamisoang Boteng ba Boemo ba Teko ba Mantlha
UL 2849 amerika e leboea Sistimi ea motlakase, polokeho ea pakete ea betri, le ho tsamaellana le tjhaja.
EN 15194 Europe Matla a mochine, EMC, le botšepehi ba tsamaiso ea motlakase bakeng sa EPACs.
UN 38.3 Lefatšeng ka bophara Teko ea polokeho ea lipalangoang (ho thothomela, ho tšoha, ketsiso ea bophahamo).

Braking le Suspension Systems

Ho emisa boima bo boima ka mokhoa o sireletsehileng ho hloka khohlano e kholo. Batla li-brake tse peli tsa hydraulic disc koloing ea hau. Mokelikeli oa Hydraulic o fetisa khatello ka mokhoa o atlehileng ho feta likhoele tsa tšepe. Sena se fana ka matla a mangata a ho emisa 'me se thibela ho fela ha mariki ha ho theoha nako e telele. Lekola litlhoko tsa hau tse ka pele le tse ka morao tsa ho fanyeha ka hloko. Lifereko tse emisitsoeng tsa boleng bo holimo li sireletsa thepa e senyehang hore e se ke ea senyeha. Li boetse li sireletsa bapalami ho tsoa mokhathala o matla o bakoang ke meaho e mebe ea litoropong.

Drive Systems

Drivetrain e hokahanya matla a motlakase oa hau le mabili. Phapang pakeng tsa li-drive tsa setso le mabanta a sejoale-joale pele u reka.

Chate ea Papiso: Chain Drive vs. Belt Drive

Feature Traditional Chain Drive Carbon Belt Drive
Boemo ba Tlhokomelo E hloka tensioning khafetsa le lubrication kamehla. E batla e le noto ea tlhokomelo. Ha ho hlokahale mafura.
Ho tšoarella E tloaetse ho otlolla le ho phunya tlas'a torque e phahameng. E nka nako e telele ho isa ho makhetlo a mararo ho feta liketane tse tloaelehileng.
Litšenyehelo tsa Pele Theko e tlase ea theko ea pele le theko e ncha. Ho hlokahala matsete a holimo pele.
Profile ea Lerata Ho lla ka mokhoa o bonahalang, haholo ha ho le litšila. Ts'ebetso e khutsitseng ka botlalo maemong ohle a leholimo.

Ho Hlahlobisisa Mefuta ea Chassis: Tadpole (Front-Load) vs. Delta (Rear-Load)

Popeho ea 'mele ea mabili e fetola haholo tsela eo koloi e tsamaisang, ho leka-lekanya le ho jara boima ba eona. O tlameha ho ts'oana le geometry ea chassis le mofuta oa thepa ea hau.

Tadpole Trikes (Mabili a Mabeli ka Pele)

Meetso ea tadpole e beha lebokose la thepa ka pele ho mopalami lipakeng tsa mabili a mabeli a ka pele. Ba sebelisa likhokahano tse rarahaneng tsa ho tsamaisa mabili a ka pele ka nako e le 'ngoe.

  • Molemo ka ho fetisisa bakeng sa: Ho beha leihlo thepa ea bohlokoa kapa bana. Li fana ka radii e tiileng haholoanyane. U ka tsamaisa li-bollards tse moqotetsane tsa litoropo habonolo hobane sebaka se sephara ka ho fetisisa sa koloi se lutse ka kotloloho tšimong ea pono ea hau.
  • Meeli: Khokahano ea tsamaiso e eketsa ho rarahana ha mochini. Ba boetse ba na le bothata ba palo ea thepa e fokolang ha e bapisoa le mabokose a maholo a ka morao. Sebaka sa pele sa lebili se thibela hore na lebokose le ka pele le ka fetoha hakae.

Delta Trikes (Mabili a mabeli ka morao)

Meetso ea Delta e na le lebili le le leng la setereng ka pele le mabili a mabeli a koloi ka morao. Thepa e lutse ka mor'a mopalami sethaleng se sephara.

  • E ntle bakeng sa: Ho jara meroalo e boima haholo ea indasteri. Ba fana ka boholo ba li-cubic volume bakeng sa mabokose a maholo a ho fana. O ka hokela habonolo meroalo e lekanang le pallet ka kotloloho holim'a foreime ea delta ea flatbed.
  • Meeli: Tsela e ka morao e pharaletseng e hloka ho tsamaisoa ka hloko sephethephetheng se teteaneng. Bapalami ba lebala habonolo bophara ba morao le li-clip curbs. Li boetse li fana ka kotsi e kholo ea ho thella ha u ka k'honeng ka lebelo le phahameng.

Mekhoa ea ho Tsamaisa Tilt

Hona joale bahlahisi ba nang le mekhoa e metle ba kenyelletsa liforeimi tse hlakileng ka har'a meralo e thata ea chassis. Lekola hore na mohlala ona o kenyelletsa theknoloji ea ho tsamaisa ho sekamela. Mekhoa ena e lumella foreime e kholo le mokalli ho sekamela ka tlhaho ho chenchana ha a ntse a boloka mabili a mararo a lenngoeng holim'a tsela e katiloeng. Theknoloji ena e fokotsa haholo likotsi tsa rollover ka lebelo le phahameng. E koala lekhalo pakeng tsa botsitso bo tsitsitseng ba trike le mahlahahlaha a mahlahahlaha a baesekele.

Kopo ea Khoebo ea Cargo Tricycle ea Motlakase

Meetso ea Boima ba Benchmarking (Spotlight: Electric Cargo Tricycle JG180)

Ha u batla likoloi bakeng sa likepe tsa indasteri, u hloka maemo a mantlha a ho ahlola mefuta e meng khahlanong le eona. Libaesekele tsa boemo ba bareki li qhibiliha ka tlas'a khatello e sa khaotseng ea khoebo.

Maemo a Benchmark a Indasteri

Sebelisa le electric cargo tricycle jg180 e le ntlha e tiileng ea ho lekola meaho ea 'nete ea khoebo. Mefuta ea mothating ona e lahla likarolo tsa bapalami tse bobebe ka botlalo. Ba etelletsa pele matla a sehlōhō, ho fokotsoa ha mochini, le nako e tsoelang pele.

Kaho ea Frame

Sheba ka ho khetheha bakeng sa li-tubes tsa alloy tsa alloy tse matlafalitsoeng tse phahameng tsa carbon kapa tse teteaneng. Foreimi e tlameha ho mamella litšusumetso tse matla tse tsoelang pele ho tsoa mekoting ha e ntse e laetse ka botlalo. Hlahloba lintlha tsa weld ka hloko. Manonyeletso a nang le li-gusseted a bontša foreimi e etselitsoeng nako e telele ea khoebo. Li-tubing tse tšesaane, tse sa matlafatsoang li tla qetella li robehile tlas'a khatello ea maikutlo e pheta-phetoang.

Modularity

Litlhoko tsa khoebo li lula li fetoha. Lekola hore na moetsi o u lumella ho etsa bethe ea thepa e ka morao. Modular chassis e o lumella ho fapanyetsana pakeng tsa bethe e bataletseng bakeng sa mapolanka, lebokose la senotlolo le sireletsehileng bakeng sa liphutheloana, kapa yuniti e laoloang ke mocheso bakeng sa ho tlisa korosari. Mokhoa ona oa ho feto-fetoha o thibela koloi hore e se ke ea sebetsa haeba mofuta oa khoebo oa hau o fetoha.

Karolo e Hloekileng

Likoloi tsa khoebo li hloka likarolo tse hahiloeng ho feta tekano. Sheba li-spokes tsa mabili tse matlafalitsoeng. U lokela ho batla botenya ba 12-gauge bonyane ho thibela ho phunya ha mabili tlas'a meroalo e boima ea lateral. Sheba li-gear tse fapaneng tsa mosebetsi o boima mefuteng ea li-axle tse ka morao. Phapang e lumella lebili le kantle ho bilika ka potlako ho feta lebili la ka hare nakong ea ho chencha, ho fokotsa ho hohla ha mabili. Qetellong, batla bokhoni ba libeteri tse peli. Ho kopanya libeteri tse peli tse nang le matla a holimo ka ho tsamaisana ho felisa matšoenyeho a mangata nakong ea ts'ebetso e hlokang phetoho e felletseng.

Mokhoa oa ho Vet Mofani oa Motlakase oa Cargo Tricycle

Kamano ea hau le moetsi e qala, eseng ho fela, ka letsatsi la theko. Koloi e ntle e fetoha e se nang thuso ho hang haeba u sa khone ho fumana li-brake pads likhoeli tse tšeletseng hamorao.

Litokomane tsa Tumellano le Polokeho

Ea tšepahalang morekisi oa li-tricycle tsa thepa ea motlakase o tla sebetsa ka ponaletso e felletseng. Ba tla fana ka litifikeiti tse ikemetseng tsa betri le litlaleho tsa tlhahlobo ea khatello ea maikutlo ha ba kopa. Ba boetse ba lokela ho fana ka litokomane tse hlakileng mabapi le likarolo tsa lebatooa tsa molao oa literata. Se ke oa amohela litiiso tse sa hlakang mabapi le ho latela molao. Batla lipampiri tsa sebele.

Warranty le SLA Transparency

Sheba likopo tse matla tsa papatso tsa 'litiisetso tse lekanyelitsoeng tsa selemo se le seng.' U tlameha ho hlalosa hantle hore na pholisi e akaretsa eng. A na e koahela li-injini tsa ka hare, kapa casing e ka ntle feela? Kopa litekanyo tse hlakileng tsa ho senyeha ha betri. Mohlala, tiisetso e matla e tiisa hore e tla nkeloa sebaka haeba matla a betri a theoha ka tlase ho 70% nakong ea lilemo tse peli. Netefatsa hore tiisetso e akaretsa bots'epehi ba foreimi ntle le likaroloana tse sa kenyellelitsoeng.

Ho fumaneha ha likarolo le Tšehetso ea Lehae

Kotsi e le 'ngoe e kholo ea likoloi tse tsoang kantle ho naha ke nako ea ho sebetsa. E hloka bopaki bo tiileng ba ntlo ea polokelo ea likarolo tsa lapeng. Haeba ba haelloa ke sebaka sa polokelo ea thepa, etsa bonnete ba hore ba sebelisa likarolo tse tloaelehileng tsa 'maraka tse bulehileng tse tsoang mefuteng e kang Shimano, Bosch kapa Bafang. Mechine ea lehae e ka sebeletsa likarolo tse tloaelehileng habonolo. Proprietary electronics hangata e bolela libeke tsa ho emela ho romelloa mose ho maoatle ha molaoli a chesa ka mokhoa o ke keng oa qojoa.

Bokhoni ba ho Itloaetsa

Bakeng sa bareki ba likepe, mefuta e tloaelehileng ea li-off-the-shelf ha e lekane. Lekola bokhoni ba morekisi ba boenjineri. Na ba ka fana ka lebitso la likepe tse tloaelehileng ka kotloloho ho tsoa femeng? A na ba ka kopanya lisebelisoa tsa ho latela likepe tsa IoT ka har'a lisebelisoa tsa mantlha tsa koloi? Bokhoni ba bona ba ho etsa mabokose a thepa a bespoke bo bonts'a bokhoni bo matla ba ho etsa ka tlung ho e-na le ho rekisa ka mokhoa o bonolo oa ho kopanya.

Qetello

Ho khetha mabili a mararo a khoebo a nepahetseng ho hloka tlhokomelo e se nang mohau ho lintlha tsa boenjiniere. Pele u tlameha ho hlalosa meeli ea hau ea mojaro le mathata a boemo ba leholimo. Batla litlhaloso tse tiileng, torque e etelletsang pele, braking ea hydraulic, le lisele tsa betri tse nang le bokhoni bo phahameng. Lekola li-geometri tsa chassis ka hloko ho tsamaisana le boemo ba hau ba thepa. Qetellong, sebelisana ka ho khetheha le morekisi ea nkang theko e le letsete la nako e telele la khoebo ho fapana le thekiso ea hang feela. Re khothaletsa haholo ho etsa 'mapa oa litlhoko tsa hau tsa letsatsi le letsatsi kajeno. Ikopanye le sehlopha se tsebahalang sa boenjiniere ba thekiso ho kopa leqephe la lintlha tse qaqileng. Beha leeto la liteko tse boima ho lekola tšebetso ea lefatše la 'nete le ho buisana ka litlhophiso tsa thepa tse ikamahanyang le boemo ba hau ba tšebeliso.

LBH

P: Na o hloka laesense e ikgethang ho kganna baesekele ya diphahlo tsa motlakase tse tharo?

A: Ka kakaretso che, ha feela motlakase le lebelo le holimo li tsamaellana le likarolo tsa lehae tsa e-baesekele. Libaka tse ngata li koala likoloi tsena ho 250W-750W le 15-20 mph. Leha ho le joalo, kamehla netefatsa likhoutu tsa masepala oa lehae bakeng sa tšebeliso ea khoebo, kaha litoropo tse ling li hloka mangolo a tumello ea khoebo bakeng sa likoloi tse tsamaisang thepa.

P: Ke boima bo bokae bo ka jarang baesekele ea mabili a mararo ea khoebo ea thepa ea motlakase?

A: Basebelisi ba boemong ba ho kena ba sebelisa li-lbs tse ka bang 300, tse kenyelletsang mopalami le thepa. Mefuta ea khoebo e boima e ka sebetsana habonolo le meroalo ea 500 ho isa ho 800+ lbs. Boima bona bo boholo bo hloka braking e khethehileng ea hydraulic le litsamaiso tse fapaneng tse ikhethileng hore li lule li bolokehile.

P: Na libaesekele tsa mabili a mabeli tsa motlakase li bolokehile ho feta libaesekele tsa thepa tse mabili a mabeli?

A: Ba fana ka botsitso bo phahameng ba static. Ha u hloke ho leka-lekanya ha setopong, ho etsa hore ho be bonolo ho e kenya. Leha ho le joalo, u tlameha ho ithuta hape botsitso bo matla. Li-trigid trike li ka fetela holimo haeba li koetsoe ka potlako haholo. Meetso e tsamaisang li-tilt e koala lekhalo lena ka mafolofolo ka ho lumella metsamao e sekametseng.

P: Nako e lebelletsoeng ea bophelo ea betri ea e-trike e boima ke e fe?

A: Boholo ba libeteri tsa lithium-ion tsa maemo a khoebo li tla fana ka li-cycle tse 800 ho isa ho tse 1,000 pele li theolela ho 80%. Ka tloaelo sena se fetolela lilemo tse 3-5 tsa tšebeliso ea letsatsi le letsatsi. Meroalo e boima khafetsa le mocheso o feteletseng oa litoropong li tla potlakisa butle-butle moaparo ona oa lik'hemik'hale.

Litaba tsa moraorao

Manane a Khoutu a Fumaneha

Re na le manane a fapaneng a qotso le sehlopha sa litsebi tsa ho reka le ho rekisa ho araba kopo ea hau kapele.

Re latele

Mokhoa oa puisano

 Fono: +86- 19951832890
 Mohala: +86 400-600-8686
 E-mail: sales3@jinpeng-global.com
 Eketsa : Xuzhou Industrial Park, Setereke sa Jiawang, Xuzhou, Profinseng ea Jiangsu

Global Distributors

Copyright © 2023 Jiangsu Jinpeng Group Co., Ltd. Litokelo Tsohle Li Sirelelitsoe. | Sebaka sa marang-rang | Leano la Lekunutu | E tšehelitsoe ke leadong.com  苏ICP备2023029413号-1