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Guardil Buardian: Pombi pendi inochengetedza sei mararamiro eguta?

Nhanganyaya yePendi

Muzvivakwa uye maindasitiri system yenharaunda ino yanhasi, mapuripi anoita basa rakakosha. Vakafanana neyekurumurudza arteries, chinyararire kutakura zvinwiwa, magasi uye zvinhu zvakasiyana-siyana, zvichiratidza kuwanikwa kwesimba, kushanda kwakanaka kwekugadzirwa kwemaindasitiri uye kuve nyore kwehupenyu hwezuva nezuva. Nekudaro, shure kwekunyarara kushanda kwepombi, kune chinokosha "chirindi chisingaonekwe" - pombi pendi, chinopa dziviriro yakakosha yePombi.

1. Tsanangudzo uye basa rePIPELELE PASHE

PIPE PEPT, sezita rinoratidza, ipendi yakagadzirirwa kugadzirwa kuti ishandiswe kune iyo nzvimbo ye pombi. Basa rayo guru rinoenda kure nekukasira uye siginecha, asi rinodzika mumatanho ese ePombi dziviriro uye performance optimization.

(1) Corrosion uye Ruzha Kudzivirira

Mapepa esimbi anotora kuCorrosion uye ngura muzvinonyorovesa, acidic kana alkaline nharaunda. Izvi hazvingangopfupise hupenyu hwe pombi, asi zvakare zvinogona kutungamira kune pombi lage, zvichikonzera tsaona dzakakura dzekuchengetedza uye kusvibiswa kwezvakatipoteredza. PIPE PEPT inogona kuumba denderedzwa pamusoro peiyo pombi yekuparadzanisa kunze kwenzvimbo yekuparadzira, zvinobudirira kudzivirira zvinyoro-nyoro, zvinhu zveokisijeni uye zvinokatyamadza uye simbi zvakananga kusangana. Pakati pavo, idzo dzinonamira-ngura-dzimba dzekutungamira, dzakadai seRed frire, zinc poda. Nenzira iyi, pombi pendi inononoka maitiro ekuora uye ngura, inowedzera zvakanyanya hupenyu hwebasa pombi, uye inoderedza mutengo wekugadzirisa uye kutsiva nekuda kwekukuvara kwepombi.

(2) Kusimudzira mamiriro ekunze kupokana

Iyo pombi yakavhenekerwa nematanho ekunze inotarisana nemuedzo wepamoyo akasiyana siyana, kuratidzwa kwezuva kuchaita kuti vafambe kudengenyeka kwekutonhora, uye kudziya kwekutonhora uye kupisa kuchaita kuti pombi yezvinyorwa zvekuwedzera uye kudzikira, nokudaro kukanganisa kutendeka kwekucheka. Yakakwira mhando pombi pendi ine yakanaka mamiriro ekunze uye inogona kuchengetedza maitiro akagadzikana mukuchinja kwenguva refu. Yayo yakakosha kuumbwa kunoita kuti ishandise kuRadilet radiation, kudzivirira kuunganidza kuchembera uye kumprittlement; Panguva imwecheteyo, kupokana kwemvura kwakanaka kwemvura kunoenderana nemvura hakupinde mukati mekutora, kudzivisa kuora kwesimbi. Munguva yechando inotonhora, pombi pendi inogona kutsungirira pesvedzero yekudziya yakadzika, pasina kupaza uye kufuratira; Muzhizha inopisa, inogona kudzikisira kuwanda kwekushisa, kuderedza kuwedzera kwekushisa kwemukati kwePombi, nekudaro kuderedza kushushikana kwepombi uye kuona kushanda kwakachengeteka kwePombi.

(3) Kuzivikanwa uye Yambiro

Muzvikamu zvakaoma pombi Semuenzaniso, mapapu egasi anowanzove akapendwa yero kunyevera nezvengozi dzinogona kuitika uye dzinogona kushandiswa zvinodiwa; Pipe Pipes PIPENT YAKANYORWA KUTI VAVANZE VANOGONA KUTI VADZIDZE KUTI VAVANZE UYE KUSHANDISA MUCHITSAUKO. Mukuwedzera, pendi pendi inogona zvakare kuwedzera zviratidzo zveziso munzvimbo dzine njodzi, nzvimbo dzakakwirira dzekumanikidza kana dzakakosha dzekushanda zvikamu, zvakadai se "kudzvinyirira njodzi" yakanyanya "," usabate "zvichingodaro. Zviratidzo izvi hazvingarangarire vashandi kuti vateerere kuchengeteka, tambanudzira zvisizvo,

(4) kuvandudza aesthetics

Kunyangwe runako harusi iyo core basa rePIPE Pendi, yakachena, yunifomu, yakajeka ruvara rukova runogona pasina mubvunzo kusimudzira kutaridzika kwese kweiyo pombi system. Munzvimbo dzekushanda, dzakaenzana uye dzakabatana pombi pombi dzinogona kuratidza mwero manejimendi uye mufananidzo wemabhizimusi; Munzvimbo dzeveruzhinji, dzakadai semigwagwa yemaguta, nzvimbo dzekugara, nezvimwe, zvakanaka pombi pende inogona kuderedza kutaridzika kwekuona uye kuita kuti nharaunda yakachenesa uye zvakarongeka. Uye zvakare, kutaridzika kwakanaka kunogona kuwedzera chivimbo cheruzhinji uye kugutsikana nezvivakwa uye kusimudzira kunaka kweguta.

2, mhando uye hunhu hwePIPELELE pendi

Kune akasiyana-siyana pombi pombi, imwe neimwe ine akasiyana mashandiro uye zviitiko zvekushandisa kuti usangane zvinodiwa zvedziviridzo zvemapipi akasiyana munzvimbo dzakasiyana uye mamiriro ekushanda.

(1) anti-nust pendi

  • Anti-ngura-rutt pendi iri coating yakanyatsoshandiswa kudzivirira simbi ngura, uye ndeimwe yematombo ekutanga ekudzivirira pombi. Iyo inowanzove ine yakakosha anti-rust pigment uye inowedzera, iyo inogona kuumba firimu rekudzivirira pamusoro pesimbi, uchivhiringidza kusangana neokisijeni, unyoro uye simbi, kuitira kuti isimbise kuitika kweruoko rwegura.
  • Anti-rust Paint anonyanya kukamurwa kuita zvikamu zviviri: oiri anti-rust pendi uye mvura-yakavakirwa anti-rust anti-rust pendi. Oine-yakavakirwa anti-ngura pendi ine organic solic solvent, ine maitiro ekukurumidza kuoma uye nehurefu hwenyika, uye nekuda kwezvakakwira zvemukati, zvine chekuita nemagariro uye hutano hwevanhu, Saka kushandiswa kwacho kuri pasi pezvimwe zvirambidzo. Mukupesana, mvura-inodudzira-nyere-ngura pendi inoshandisa mvura sediki, iyo ine zvakanakira kudzivirirwa kwezvakatipoteredza, kuchengeteka, uye kusasangana nezvinodiwa zvemitemo yemazuva ano yezvakatipoteredza. Nekudaro, nguva yayo yekunyorova izere, uye yayo yekurwisa-hutachiwana inogona kuve yakaipisisa kupfuura iyo yemafuta-yakavakirwa pendi mune zvimwe zviitiko.
  • Panyaya yeAnti-Rust Piigment, yakajairika tsvuku inotungamira, zinc poda, zinc phosphate uye zvichingodaro. Tsvuku inotungamira Anti-ngura pendi ine hutano hwakanaka, asi nekuti zvakatsvuka zvinotungamira, zvinokuvadza nharaunda nemuviri wemunhu, zvakadzikiswa zvishoma nezvishoma. Zinc Powder Anti-Rust Paint Inoshandisa Dziviriro yeElectrochemical yeZinc, iyo inogona kupa nguva yakareba inobudirira yekudzivirira kwekutya-ngura, kunyanya yakakodzera nzvimbo yemarine uye dzimwe nguva dzakanganisa. Zinc Phinchate Anti-Rust Paint Inosangana neSimbi pamusoro peFirimu Rinodzivirira, iyo ine yakanaka anti-nzizi-ngura zvinhu uye kuramba kwemvura.

(2) Anti-Corrosion Paint

  • Anti-Corroson Paint iri coating yakagadzirirwa kurwisa kugumisa kwezvinhu zvemakemikari, uye anoita basa rinokosha muPIPELE Dziviriro mumakemikari, peturu, kurapa kwesango uye mamwe maindasitiri. Maererano neakasiyana-siyana vanokatyamadza, pendi-corrosion pendi inogona kukamurwa kuita acid-inopenda pendi, yeAlkali-inopenda-spewa-spray pendi nemamwe marudzi.
  • Acid-inodzivirira pendi inonyanya kushandiswa kuramba iyo corrosis yezvinhu zvemukati, senge sulfutic acid, hydrochloric acid uye zvichingodaro. Mafomu anowanzove neAcid-anodzivirira anodzivirira uye anokatyamadza mafirita anochengetedza kutendeka uye kugadzikana kwekubatanidza mune acidic nharaunda. Alkali inodzivirira pendi ndeye maAlkaline zvinhu, senge sodium hydroxide, potassium hydroxide, nezvimwe, ane yakanaka alkali kuramba. Salt Spray Kurwisa Paint ndeyekutsungirira kwemunyu kupururudza munzvimbo dzemahombekombe, kuburikidza nenzvimbo dzinodzika dzinodzivirira, zvinobudirira zvinodzivirira pamunda uye corros on the pamusoro pombi.
  • Paunenge uchisarudza Inti-Corrosion Pendi, zvinodikanwa kuti usanzwisise kufunga kwepakati, kushandira tembiricha, kudzvanywa uye zvimwe zvinhu zvepombi yekufambisa. Semuenzaniso, mumakemikari pombi, kana kuendesa kwakakura kwemakemikari anokonzeresa, kana kusarudzira pendi yekupokana nemakemikari akanakisa, uye sarudza iyo inoenderana mitezo yemhando uye pigment zvinoenderana nechimiro chekemukati yemakemikari.

(3) kupisa kwakanyanya kupenda kupenda

  • Mune zvimwe zvinokosha maindasitiri ekushandisa, sekupisa kwemiindaniso, mudhara weindasitiri, injini yekunamatira mapepa, etc., mapaipi anofanirwa kushandira kwenguva yakareba mune yakanyanya tembiricha. Yakakwira tembiricha inodzivirira pendi inogadziriswa kuzadzisa izvi zvinodiwa.
  • Kupisa kwakasimba kwekupesana kunogona kuchengetedza kugadzikana kwekubatanidza pasi pemamiriro ekunze ekunze, pasina kupfava, kuyerera, kudonha uye kumwezve phenomena. Izvo zvinhu zvikuru zvinosanganisira kupisa kwakanyanya kudziya, kupisa kunodzivirira pigment uye zvinoshanda mafirita. Silicone yakakwira kupisa pendi iri mhando yakajairika uye inogona kushandiswa kwenguva yakareba mukupisa kwe200 ° CLICASE HWE TIMBASHING PEATHRARY TIPLRATY TINGRATIONS, kusvika 800 ° C kana kunyange anopfuura 1000 ° C, asi yayo kuchinjika uye kuderedza varombo.
  • Kuti ave nechokwadi chekurarama kwekupenda kwepamusoro-tembiricha, kunyepedzera kwekunyepedzera kunodiwa pombi pamberi pekuvakwa kuti ubvise mafuta, ngura uye nzombe. Panguva imwecheteyo, panguva yekuvaka, kutarisa kunofanirwa kubhadharwa kudzora ubvu uye kufanana kwekuvharidzira kuti udzivise mukana wekutora kwemuno.

(4) Inosimbisa pendi

  • Kune mapuripi anofambisa simba kana anoshandiswa mumidziyo yemagetsi, senge matare ekudzivirira materu, transformer housings, etc. Inosimbisa pendi inogona kuumba yakanaka yekuchinja kwehupamhi pamusoro pePombi, dzivirira kuunganidza kwazvino, uye ita shuwa kushanda kwakachengeteka kwemidziyo yemagetsi.
  • Inosimbisa pendi inowanzo kuumbwa neiyo synthetic resin, solvent uye ine insolational kupesana, kupesana nekupesana nekupesana nekumanikidza kupokana. Kwakakomberedza pendi inosanganisira alkyd ichisimbisa pendi, polyester insterting pendi, epoxy ichisimbisa pendi uye zvichingodaro. Kana uchisarudza kupenda pendi, zvinodikanwa kuti usazvinzwisisika kufunga nezvezvinhu zvakadai sekushanda voltage, shandisa nharaunda uye insulation zvinodiwa zve pombi.

(5) nzvimbo dzekudzivirira dzedziviriro

  • Nekuenderera mberi kwekuvandudzwa kwepasi rese kutarisisa kune dziviriro yezvakatipoteredza, zvakaringana pombi pombi pendi yave iyo yekuvandudza maitiro emusika. Rudzi urwu rwependi runoderedza kuburitsa kweiyo Vhasile organic compounds (VOC) mukugadzirwa uye kushandisa kusvibiswa kwenzvimbo, uye zvakare inoderedza njodzi kune vashandi vehutano kune vashandi vekuvaka nevashandisi.
  • Peportal Dziviriro Pendi inonyanya kusanganisira pendi yemvura, yakakwira solid pendi uye solvent-yemahara pendi uye mamwe marudzi. Pendi yemvura inoshandisa mvura seDailial Solvent, ine zvakanakira kudzivirirwa kwezvakatipoteredza, kuchengeteka, kusingafadzi uye zvichingodaro. Nekuwedzera iyo yakasimba zvirimo mupendi, kushandiswa kwemasimba kuderedzwa, nekudaro kudzora vhosi. Pefvent isingasviki pendi inoda solvent-yemahara uye ine zvinhu zvakanakisa uye zvemakemikari, asi zvinodiwa pakuvaka zvakakwira.
  • Dziviriro yezvemamiriro ekunze haina kungodzivirirwa pakudzivirirwa kwezvakatipoteredza, kuita kwayo kuri kugara ichivandudza, kunogona kuita zvinodiwa zvevakasiyana pombi, uye wakaita mupiro wakanaka wekusimudzira.

3. Iko kusarudzwa kwePombi Pendi Points

Kusarudza iyo chaiyo pombi pombi ndiyo kiyi yekuve nechokwadi chekudzivirira uye hupenyu hwebasa hwepipi. Paunenge uchiita sarudzo, zvinoverengeka zvinhu zvinoda kufungwa nezvinoda kuita zvinodiwa pombi mune yakatarwa nharaunda uye mamiriro ekushanda.

(A) kushandiswa kwenzvimbo pombi

  • Mamiriro ezvinhu epatirapiti epombi ndiwo fungidziro yekutanga mukusarudzwa kwepombi pendi. Nharaunda dzakasiyana dzine zvasiyana zvinodiwa pakuita kwekutenderera kwejasi.
  • Kana iyo pombi yakaiswa mune yakanyoroveswa pasi pevhu, senge mapepa ekuona, pasi pevhu pipi pipi, nezvimwe, zvinodikanwa kuti usarudze pendi nekupokana kwakanaka uye kupokana. Rudzi urwu rwependi runowanzo kuve rwakanaka kudzivisa kwemvura uye kurwisa kwemakemikari, izvo zvinogona kudzivirira kukosirwa kwemvura nemakemikari muvhu riri pasi pevhu.
  • Nekuti mapuripiresi anofumurwa kune ekunze, akadai seanopisa pombi, mapipi oiri, etc., etirosi yemvura, mhepo uye jecha uye jecha jecha. Naizvozvo, pombi pendi ine mamiriro ekunze ekunze uye kupfeka kurwisa kunofanirwa kusarudzwa kuve nechokwadi chekuti kubheja kunoramba kuchiramba munzvimbo refu yekunze.
  • Kana pombi iri mune yakanyanya tembiricha yemamiriro ekunze, seyakaipisisa yemoto pombi, inopisa simba steam pipeces, etc., ipapo tembiricha yakanyanya kurwisa pendi ndiyo sarudzo yakanyanya kunaka. Pendi iyi inogona kuchengetedza zvivakwa zvemuviri uye zvemakemikari pakudziya kwakanyanya, kudzivirira pombi kubva kuhurongwa, iko kuora uye zvimwe zvinetso nekuda kwekupisa kwakanyanya.

(B) zvinhu zvinotakurwa nemendendu

  • Zvinyorwa zvinotakurwa nePombi zvakare chine chekuita kwakakosha pakusarudzwa kwepombi pendi. Zvinhu zvakasiyana zvine zvimiro zvakasiyana zvemakemikari uye zvemuviri, izvo zvinogona kukonzera kuora, kupaza kana kupfeka pombi inovhara.
  • Kana pombi iri kutakura zvinwiwa zvinokosheswa, senge acids, alkalis, mhinduro yemunyu, etc., ipapo unofanira kusarudza pendi yekufungidzira iyo inogona kutsungirira kurongeka kwezvinhu zvinoenderana nemakemikari anoenderana. Semuenzaniso, iyo pombi inotakura Sulfutic acid inofanira kushandisa Acid pendi, uye pombi inotakura sodium hydroxide solution inoda kushandisa alkali-inopenda-inopenda pendi.
  • Kwekutapurirana kwekutapurirana uye kuputika kwemafuta zvakadai seyemafuta uye negasi kwechisikigo, kuwedzera pakufunga nezve pombi-pombi yekunyepedzera kuita kwekuwedzera kwemagetsi kubva pakukonzera moto kana kuputika tsaona.
  • Kana chiri chikafu chemvura kana chekunwa pombi, chisarudzo chekupenda chinonyanya kuoma, chinofanira kushandisa kuti zvinhu zvinofambiswa zvakanaka hazvisvibiswe, kuchengetedza hutano uye kuchengeteka kweveruzhinji .

(C) mamiriro ekuvaka

  • Mamiriro ekuvaka ane pesvedzero yakananga pane kusarudzwa uye yekuvaka mhedzisiro yePipeline pendi. Iyo nzira yekuvaka, iyo mhepo yeiyo nzvimbo yekuvaka, uye izvo zvinoda kurapwa zvinodikanwa zvese zvinhu zvese zvinoda kufungwa nezvazvo.
  • Dzakasiyana pombi pombi dzakakodzera nzira dzakasiyana dzekuvaka. Semuenzaniso, mamwe mapepa akakodzera kupuruzira nekuda kweiyo visikopo yavo yepamusoro uye anogona kuve akafanana neyakafanana nepombi pasi pechiitiko chebrashi; Dzimwe pendi dzakanyatsokodzera kupfira nekuti ivo vanoumba mutete, kakawanda kuumbwa.
  • Iyo mhepo yekuvakwa kwenzvimbo yekuvaka yakakoshawo. Mune nzvimbo dzisina kunaka dzenyama, pendi ine yakaderera-yakaderera organic compounds (VOC) zvemukati zvinofanirwa kusarudzwa kuti uderedze kukuvadza kune hutano hwevashandi vekuvaka uye kusvibiswa kwenzvimbo.
  • Uye zvakare, izvo zvinodiwa pakurapa zvepipi zvipi zvipi zvinokanganisawo sarudzo yependi. Kana pamusoro penzvimbo yePipeline ichinyomba zvakanyanya kana kuti kune vasina kusvibisa senge mafuta, zvinodikanwa kusarudza pombi pendi iyo inogona kuomerera pamamiriro ezvinhu epamoyo, kana kurapwa kwakanyanya kusati kwatanga kuvaka.

(D) Bhajeti

  • Kana uchisarudza pombi pendi, bhajeti zvakare chinhu chisingagoni kufuratirwa. Mutengo wemhando dzakasiyana uye nemhando dzepomba pendi dzakasiyana kwazvo, saka zvakakosha kusarudza zvine musoro zvichienderana nebhajeti pasi pekusangana kwekusangana nezvinodiwa zvekudzivirira.
  • Muzhinji, pombi-yekuita pombi dzakanyanya kudhura, asi dzinogona kupa hupenyu hwebasa refu uye kudzivirirwa kuri nani. Kana iyo bhajeti ishoma, unogona kusarudza zvimwe zvigadzirwa zvinodhura, asi ita shuwa kuti kuita kwayo kunogona kuzadzisa zvinodiwa zvekudzivirira kwepombi.
  • Panguva imwecheteyo, zvinodiwawo kuti ufunge nezvekuchengetedza mari yekupa pombi. Mimwe yepamusoro-mhando pombi pombi, kunyangwe iyo yekutanga mari yekudyara yakakwira, inogona kunge iri hupfumi mukureba kwekufamba kwenguva nekuda kwekugara kwavo kwakanaka uye kuderera kwekugara.

4, tekinoroji yekuvaka yePIPELELE PASHE

Tekinoroji yekuvaka chaiyo inzvimbo yakakosha yekuziva kuti inodzivirira pombi yepombi. Chete nekuteedzera zvakanyatsotevera maitiro ekuvaka ekuvaka kunogona kuve nechokwadi chekuti kunaka uye kuita kwekubatanidza kusangana nezvinangwa zvinotarisirwa.

(1) kurapwa kwepamusoro

  • Kurapa kwepasi ndiyo nhanho yakakosha yePIPEline pendi yekuvakwa, uye kunaka kwayo kunobata zvakananga kuderera uye kudzivirirwa kwemhedzisiro yekuvhara.
  • Pamberi pekurapwa kwepamusoro, pamusoro pePombi inoda kunyatsocheneswa kuti ubvise zvisina kufanira semafuta, guruva, uye oxide. Kune pombi dzakakomba dzakasimba, kurapwa kwekubvaruka kunowanzoitwa nejecha risingaperi, kurwa, nekukwevera uye dzimwe nzira. Sandling kuputika ndiyo yakajairika ngura yekubvisa nzira, iyo inobvisa ngura uye oxidation layer nekurova pamusoro peiyo pombi ine kumhanya kweiyo kumusoro, kuti nzvimbo iyo inosimudzira kuomarara uye kusimudzira kuderedza kwekucheka. Kutora ndiko kushandiswa kwemhinduro yewidhi yekunyungudza ngura uye nzombe pamusoro penzvimbo yePombi, asi zvakakodzera kuti utarise kurapwa nekumisiya mushure mekutora iyo yakasara acid kubva kune yechipiri corroson kune pombi. Kugaya kwakakodzera kune yomunharaunda ngura kana kudiki nzvimbo yemusoro kurapwa.
  • Pamusoro pekubviswa kwekubviswa, zvinodikanwa kuti ubvise mafuta neguruva pamusoro penzvimbo yepombi. Nzira dzakadai se solvent yekuchenesa, lyo kuchenesa kana yakanyanya kudzvinyirira mvura inobhururuka inogona kushandiswa. Mushure mekurapwa kwemukati kwapera, inofanira kuongororwa munguva yekuve nechokwadi chekuti pombi yemapipi inosangana neyakataurwa hutsanana uye zvingangoita zvinodiwa.

(2) pre-coating

  • Pre-Coating ndiyo maitiro ekutangisa pre-coating zvikamu zvePombi zvakaoma kupenda, senge weld, kona, iyo bhajeti.
  • Nekuda kwechimiro chakaoma, izvi zvikamu zvinowanzoitika kumatambudziko akadai akatetepa coating uye kushaya kukweva nenzira yakajairika pendi, saka ivo vanofanirwa kubatwa zvisati zvaitika. Pendi inoshandiswa mukufamba-famba inofanira kunge yakafanana nekubatira kukuru, uye kuvakwa kunofanira kuitwa nehurema kana pfuti diki yekupfura kuve nechokwadi kuti izvi zvikamu zvakadzivirirwa zvakakwana.

(3) kupenda

  • Kupenda ndiko kuwirirana kwepombi yePipeline pendi yekuvaka, maererano nerudzi rwepombi pendi uye zvinodiwa pakuvaka, sarudza nzira yakakodzera pendi.
  • Burashi yekuvhara inzira yechinyakare inobatanidza, yakakodzera nzvimbo diki, chimiro chakaoma pombi kana kugadziriswa kwenzvimbo. Paunenge uchishandisa burashi, teerera kuomarara uye upamhi hwehutachiona, pamwe negwara uye simba rebrashi, kuve nechokwadi chekuti kuunganidzwa kwunifomu uye hakuna kubhururuka.
  • Roller coating yakakodzera nzvimbo yakakura yePombi yePlate, inogona kuvandudza kushanda kwekuvaka, asi iyo inokatyamadza yakaonda.
  • Roller coating yakakodzera nzvimbo yakakura yePombi yePlate, inogona kuvandudza kushanda kwekuvaka, asi iyo inokatyamadza yakaonda.

Nezvedu

Kambani yeduagara achiomerera ku "'sainzi uye tekinoroji, kutendeka kwekutanga, kusarudzika kwemhando yepamusoro:. .Sechiratidzo chesimba uye yakasimba Chinese fekitori, tinogona kupa samples kune vatengi vanoda kutenga, kana iwe uchida chero pendi, ndapota taura nesu.

Taylor Chen
Tel: +86 19108073742

Whatsapp / Skype: +86 18848329859

Email:Taylorchai@outlook.com

Alex Tang

Tel: +8615608235836 (WhatsAap)
Email : alex0923@88.com


Kutumira Nguva: Sep-10-2024