Strontium carbonate

Takaitaccen Bayani:

Strontium carbonate wani ma'adinai ne na carbonate na rukunin aragonite.crystal dinta kamar allura ne, kuma jimillar kristal gabaɗaya granular ce, columnar da allurar rediyoaktif.Mara launi da fari, sautunan kore-rawaya, m zuwa mai bayyanawa, ƙoshin gilashi.Strontium carbonate ne mai narkewa a cikin tsarma hydrochloric acid da kumfa.

* Ana amfani dashi a fagage da yawa kuma yana da aikace-aikace iri-iri.
* Shakar ƙurar fili na strontium na iya haifar da matsakaicin sauye-sauye na tsaka-tsaki a cikin huhu biyu.
* Strontium carbonate ma'adinai ne da ba kasafai ba.

 


Cikakken Bayani

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Bayanin Samfura

Strontium carbonate shine muhimmin albarkatun masana'antu tare da fa'idodin amfani.Yana da ma'adinan carbonate, na cikin rukunin aragonite, wanda ba shi da yawa kuma yana faruwa a cikin farar ƙasa ko marlstone a cikin nau'in veins.A cikin yanayi, yawanci ya wanzu a cikin nau'i na rhodochrosite na ma'adinai da strontite, tare da barium carbonate, barite, calcite, celestite, fluorite da sulfide, maras wari da rashin jin daɗi, mafi yawa fari lafiya foda ko launi rhombic crystal, ko launin toka, rawaya-fari. kore ko launin ruwan kasa lokacin da ƙazanta suka kamu da ita.Strontium carbonate crystal nau'in allura ne, kuma jimillarsa galibin granular, columnar, da allurar rediyoaktif.Siffar sa ba ta da launi, fari, koren rawaya, tare da bayyananniyar haske zuwa kyalli na gilashi, ƙoshin mai mai karaya, gaggauce, da hasken shuɗi mai rauni mai rauni a ƙarƙashin hasken cathode.Strontium carbonate yana da tsayayye, maras narkewa a cikin ruwa, dan kadan mai narkewa a cikin ammonia, ammonium carbonate da carbon dioxide cikakken bayani mai ruwa, kuma maras narkewa a cikin barasa.Bugu da ƙari, strontium carbonate kuma wani muhimmin albarkatun kasa ne ga celestite, tushen ma'adinai mai wuya.A halin yanzu, babban matakin Celestite ya kusa ƙarewa.

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Aikace-aikace

Tare da ci gaba da ci gaban masana'antar duniya, filin aikace-aikacen strontium shima ya faɗaɗa.Daga karni na 19 zuwa farkon wannan karni, mutane sun yi amfani da strontium hydroxide don yin sukari da kuma tsarkake ruwan gwoza;A lokacin yakin duniya na biyu, an yi amfani da mahadi na strontium sosai wajen samar da wasan wuta da bama-bamai;A cikin 1920s da 1930s, an yi amfani da strontium carbonate azaman desulfurizer don yin ƙarfe don cire sulfur, phosphorus da sauran abubuwa masu cutarwa;A cikin 1950s, an yi amfani da strontium carbonate don tsaftace zinc a cikin samar da zinc electrolytic, tare da tsabta na 99.99%;A ƙarshen 1960s, strontium carbonate an yi amfani da shi sosai azaman kayan maganadisu;Strontium titanate ana amfani dashi azaman ƙwaƙwalwar kwamfuta, kuma ana amfani da strontium chloride azaman man roka;A cikin 1968, an yi amfani da strontium carbonate zuwa gilashin allon TV mai launi saboda an gano cewa ana amfani da shi don kyakkyawan aikin garkuwar X-ray.Yanzu buƙatun yana girma cikin sauri kuma ya zama ɗaya daga cikin manyan wuraren aikace-aikacen strontium;Strontium kuma yana haɓaka kewayon aikace-aikacen sa a wasu fagage.Tun daga wannan lokacin, strontium carbonate da sauran strontium mahadi (strontium salts) a matsayin mahimman kayan albarkatun gishiri na inorganic sun sami kulawa da kulawa sosai.

A matsayin mahimmancin albarkatun masana'antu, strontium carbonateana amfani da shi sosai wajen samar da bututun hoto, masu saka idanu, masu saka idanu na masana'antu, abubuwan lantarki, da sauransu.A lokaci guda, strontium carbonate kuma shine babban kayan da ake buƙata don shirye-shiryen strontium na ƙarfe da kuma strontium salts daban-daban.Bugu da kari, strontium carbonate kuma za a iya amfani da a samar da wasan wuta, kyalli gilashin, sigina bama-bamai, takarda yin, magani, analytical reagents, sugar refining, tutiya karfe electrolyte tacewa, strontium gishiri pigment masana'antu, da dai sauransu Tare da karuwar bukatar high. -tsarki strontium carbonate, kamar manyan allon kalar TV sets, nunin launi don kwamfutoci da manyan kayan aikin maganadisu, da sauransu. Samar da samfuran strontium a Japan, Amurka, Jamus da sauran ƙasashe masu ci gaba ya ragu kowace shekara saboda haka. zuwa raguwar jijiyoyin ma'adinai, hauhawar farashin makamashi da gurbatar muhalli.Ya zuwa yanzu, ana iya ganin kasuwar aikace-aikacen strontium carbonate.

Yanzu, za mu gabatar da takamaiman aikace-aikacen strontium carbonate:

Da farko, an raba strontium carbonate zuwa granular da ƙayyadaddun foda.An fi amfani da granular a gilashin TV a kasar Sin, kuma ana amfani da foda a cikin samar da kayan aikin strontium ferrite magnetic, smelting nonferrous karfe, jan pyrotechnic heartliver da kuma samar da high-tsarki strontium carbonate don ci-gaba na lantarki kayayyakin kamar PTC. yafi amfani a samar da TV gilashin da nuni gilashin, strontium ferrite, Magnetic kayan da nonferrous karfe desulfurization, da kuma amfani da samar da wasan wuta, mai kyalli gilashin, Siginar bam, takarda yin, magani, Analytical reagent da albarkatun kasa don masana'antu sauran. strontium gishiri.

Babban amfani da strontium carbonate a cikin aikace-aikacen lantarki sune:

Ana amfani da shi don kera mai karɓar talabijin mai launi (CTV) don ɗaukar electrons da cathode ke samarwa

1.Manufacture na strontium ferrite don dindindin maganadisu da ake amfani da su a cikin lasifika da maganadiso kofa
2.Production na cathode ray tube don launi TV
3. Har ila yau ana amfani da shi don electromagnets da strontium ferrite
4.Za a iya sanyawa cikin ƙananan motoci, masu rarraba maganadisu da lasifika
5.Shan X-rays
6.It da ake amfani da masana'antu wasu superconductors, kamar BSCCO, kuma ga electroluminescent kayan.Da farko, ana ƙididdige shi cikin SrO, sannan a haɗe shi da sulfur don yin SrS: x, inda x yawanci europium ne.

A cikin masana'antar yumbu, strontium carbonate yana taka rawa kamar haka:

1.An yi amfani da shi sosai azaman sashi na glaze.
2. Yana aiki azaman juyi
3. Canza launin wasu karfe oxides.

I mana,Mafi yawan amfani da strontium carbonate shine azaman mai launi mai arha a cikin wasan wuta.

A takaice, strontium carbonate ana amfani da ko'ina, yafi a samar da TV gilashin da nuni gilashin, strontium ferrite, Magnetic kayan da nonferrous karfe desulfurization da sauran masana'antu, ko a samar da wasan wuta, kyalli gilashin, sigina bama-bamai, takarda yin takarda, magani. , Analytical reagents da albarkatun kasa don kera sauran strontium salts.
Bisa kididdigar da aka yi, kasar Sin tana da kamfanoni sama da 20 da ke aikin samar da sinadarin strontium carbonate, wadanda adadinsu ya kai ton 289000 a duk shekara, wanda ya zama kasa mafi girma a duniya wajen samar da makamashin carbonated, da kuma fitar da kayayyaki zuwa sassan duniya, suna samun kyakkyawan suna. a kasuwannin duniya.Bisa kididdigar kididdigar kwastam, yawan kayayyakin da kasar Sin ta fitar a shekarun baya-bayan nan ya kai ton 78700 a shekarar 2003, ton 98000 a shekarar 2004 da tan 33000 a shekarar 2005, wanda ya kai kashi 34.25%, da kashi 36.8% na kasar, da kashi 39.5%, da kashi 39.5 cikin dari. 54.7% da 57.8% na cinikin kasuwannin duniya.Celestite, babban albarkatun kasa na strontium carbonate, ƙaramin ma'adinai ne a duniya kuma shine albarkatun ma'adinai da ba a sake sabuntawa ba.

Kamar yadda muka sani, strontium shine muhimmin ma'adinai mai mahimmanci tare da amfani mai yawa.Ɗaya daga cikin amfani da shi shine sarrafa gishiri na strontium, irin su strontium carbonate, strontium titanate, nitrate, strontium oxide, strontium chloride, strontium chromate, strontium ferrite, da dai sauransu. Daga cikin su, mafi girma shine samar da strontium carbonate.
A kasar Sin, strontium carbonate namu yana da wani fa'ida ta fuskar samarwa da samarwa.Ana iya cewa kasuwa na kasuwa na strontium carbonate yana da kyau.

Binciken kasuwa na strontium carbonate

Strontium tama albarkatun da samar da wadata

strontium na kasar Sin yana da fiye da rabin adadin duniya, kuma yana da ma'adinai mai fa'ida.Strontium tama wani ƙarfe ne da ba kasafai ba.Strontium shine mafi ƙanƙanci mafi ƙanƙanta a cikin ƙananan ƙarfe na ƙasa.Strontium tama ya ƙunshi ma'adanai da ke ɗauke da strontium sulfate (wanda aka fi sani da "celestite"), tare da ƙaramin tanadi na duniya.Ana rarraba ajiyar kuɗin strontium na duniya a China, Spain, Mexico, Iran, Argentina, Amurka, Turkiye da sauran ƙasashe.A shekarar 2012, ajiyar strontium na kasar Sin ya kai tan miliyan 16 (SrSO4, iri daya a kasa), sama da kashi 50% na asusun ajiyar duniya, wanda ya zama na farko a duniya.An rarraba ma'adinan Strontium a kasar Sin a yankunan Qinghai, Chongqing, Hubei, Jiangsu, Sichuan, Yunnan, Xinjiang da sauran wurare, inda aka tanadar Qinghai sama da kashi 90%.Manyan wuraren hakar ma'adinai sun ta'allaka ne a Tongliang da gundumar Dazu na Chongqing, da birnin Huangshi na lardin Hubei da tsaunin Dafeng na lardin Qinghai.Bugu da kari, Lishui na lardin Jiangsu ma yana da wasu wuraren ajiya.Matsayin Celestite shine mafi kyau a Tongliang da Dazu na Chongqing;Hubei Huangshi yana da ɗan ƙaramin abun ciki na ƙazanta kuma tsarin samar da shi yana da ɗan rikitarwa;Sakamakon yanayin yanayi da sufuri marasa dacewa, yawancin albarkatu a Qinghai suna da wahalar amfani kuma suna da tsadar sufuri.A shekarar 2012, yawan samar da ma'adinan strontium a kasar Sin ya kai shekaru 84.A sa'i daya kuma, kasar Sin tana da arzikin da ake dangantawa da ma'adinan strontium, wadanda galibi ake danganta su da taman phosphate, brine karkashin kasa, dalma-zinc, barite, gypsum tama da dai sauransu, wanda ya kai sama da kashi 50% na yawan albarkatun da ake samu, tare da yin hadin gwiwa da kasar Sin. babban albarkatun kasa.Gabaɗaya, albarkatun strontium na kasar Sin suna da kariya sosai kuma suna cikin manyan ma'adanai masu mahimmanci.1.1.2 Haɓaka ma'adinan strontium a ƙasar Sin ya nuna saurin bunƙasa, wanda ya kai rabin abin da ake fitarwa a duniya.Tun da aka shiga karni na 21, fitar da sinadarin strontium a duniya ya nuna koma baya sakamakon raguwar yawan ma'adinan da ake samu a kasashen waje.Daga shekara ta 2000 zuwa 2012, fitar da sinadarin strontium ya ragu daga 520000 t zuwa 380000 t, raguwar 27%.Manyan masu samar da ma'adinan strontium a duniya sun hada da Sin, Spain, Mexico, Argentina, da dai sauransu, daga cikinsu, a shekarar 2007, abin da kasar Sin ta samu ya zarce Spain, kuma ya zama kasa mafi girma a duniya wajen samar da sinadarin strontium.A cikin 2012, abin da ya fitar ya kai kashi 50% na rabon duniya, wanda ya kai "rabin ƙasar" (Hoto 2);Sabanin haka, fitar da sinadarin strontium a wasu kasashe ya ragu sosai.

Matsayin amfani da wadata da wadata a nan gaba da halin da ake ciki na strontium ore

Yawan amfani da strontium a kasar Sin yana da yawa sosai.Ƙasashen da suka ci gaba suna amfani da samfuran strontium zuwa manyan masana'antu masu tasowa.Ana amfani da kayayyakin strontium na kasar Sin a cikin harsashi na gilashin bututun hoto, kayan maganadisu, kayan aikin pyrotechnic, da sauransu, wanda kashi 40% ana cinye su a cikin harsashin gilashin bututun hoto, galibin talabijin da na'urorin nuni;Kimanin kashi 30% ana amfani da su a cikin kayan maganadisu, galibi ana amfani da su a cikin rumbun kwamfyuta da kuma kayan aikin maganadisu.Tare, suna cinye kusan kashi 70% na samfuran strontium, galibi a cikin kayan aikin lantarki na gargajiya da masana'antun masana'antu, tare da ƙarancin ƙima a cikin masana'antu masu tasowa.

Bukatar strontium a cikin masana'antar TV masu launi za ta ragu a hankali, kuma buƙatu a wasu fannoni za su ci gaba da ƙaruwa.Ci gaban masana'antar talabijin mai launi cikin sauri ya haifar da saurin karuwar amfani da strontium a kasar Sin.A halin yanzu, kasar Sin ta haye kololuwar masana'antar talabijin masu launi, kuma kayan aikinta sun daidaita.A lokaci guda, tare da ci gaba a hankali na fasahar nunin launi, za a sabunta tsarin samar da kayan aiki a hankali, kuma buƙatar strontium a cikin wannan filin zai nuna ci gaba mai sauƙi.Akwai manyan wurare guda biyu na aikace-aikacen kayan maganadisu.Daya shi ne kera rumbun ajiyar kwamfuta na gargajiya;Sauran kuma shine strontium ferrite mai tasowa, wanda ke da kyakkyawan aiki da ƙarancin farashi, kuma ana amfani dashi sosai a masana'antar kera motoci, kayan aikin gida, sarrafa kansa na masana'antu da sauran masana'antu.Kodayake masana'antar kwamfuta ta cika cikakku kuma tana da ɗan ɗaki don haɓakawa, tana da babban yuwuwar aikace-aikacen a cikin masana'antu masu tasowa.Gabaɗaya, har yanzu akwai ɗaki don haɓakawa cikin aikace-aikacen kayan maganadisu.A matsayin kayan fasaha na pyrotechnic, ana amfani da shi sosai a cikin wuta na soja, wasan wuta na farar hula, roka na sararin samaniya da sauran kayan mai.Saboda yawan aikace-aikacen sa, a cikin dogon lokaci, yana da ɗan ƙaramin sarari girma a cikin masana'antu na gargajiya da masu tasowa.A cikin wasu fagagen aikace-aikacen, kamar yadda strontium sabon ma'adinai ne na dabaru, aikinsa da amfaninsa har yanzu yana da ɗaki mai yawa don faɗaɗawa.Tare da ci gaban fasaha, filayen aikace-aikacen gaba da buƙatun buƙatun suna da girma.

Bukatar strontium a kasar Sin zai kai kololuwa a cikin 2025 ~ 2030, kuma akwai kasada a cikin samar da manyan kayayyaki.

Strontium, a matsayin ma'adinan dabarun da ke tasowa, tare da ci gaban kimiyya da fasaha cikin sauri, za a ci gaba da gano abubuwan da ke da kyau da kuma kyawawan kaddarorinsa, kuma filayen aikace-aikacensa za su kasance da yawa, kuma yawan amfani da shi zai kasance da yawa. , musamman a masana'antu masu tasowa.Ko da yake masana'antar talabijin kala-kala ta kasar Sin da masana'antar kera kwamfutoci sun balaga, amma bukatar strontium za ta daidaita a yankin;Koyaya, buƙatu a wasu fannonin za su ci gaba da ƙaruwa.Gabaɗaya, buƙatar albarkatun strontium na kasar Sin za ta ci gaba da ƙaruwa a nan gaba.An yi kiyasin cewa bukatar kasar Sin ta strontium za ta kai kololuwarta a shekarar 2025 zuwa 2030, kuma yawan amfanin da ake samu a kololuwar zai wuce 130000.

Bisa ga abubuwan da aka ambata a sama, ba abu mai wahala ba ne a ga cewa ma'adinan strontium shine babban ma'adinan dabarun kasar Sin, kuma ma'adinan strontium na kasar Sin ya kai kusan rabin duniya.A sa'i daya kuma, kasar Sin tana da dimbin albarkatun strontium da ke hade da su, kuma matakin aikin binciken kasa ba shi da yawa, kuma karfin albarkatun da ake da shi a nan gaba yana da yawa, wanda zai iya yin tasiri mai mahimmanci ga kasuwannin duniya a nan gaba.Kasar Sin ita ce kan gaba wajen samar da sinadarin strontium a duniya, wanda ya kai kusan rabin abin da ake fitarwa a duniya.Daga cikin su, ana amfani da wani kaso mai tsoka na sinadarin strontium da kasar Sin ke fitarwa zuwa kasashen waje.Ita ce kasa mafi girma a duniya wajen fitar da ma'adinan strontium da kayayyaki, kuma muhimmiyar mai samar da albarkatu a duniya, tana ba da muhimmiyar gudummawa ga ci gaban masana'antu masu alaka da strontium a duniya.Bukatar kasar Sin na strontium za ta ci gaba da karuwa a nan gaba, kuma za ta kai kololuwarta a shekarar 2025-2030.Daga cikin su, buƙatun strontium a cikin masana'antar TV mai launi za ta ragu a hankali, amma buƙatar kayan magnetic, kayan pyrotechnic da sauran masana'antu suna da babban sarari girma, kuma buƙatun buƙatun yana da faɗi.

A cikin kamfaninmu, zaku sayi samfuran sodium sulfate masu inganci akan mafi kyawun farashi.Cikakken sabis da samfurori masu inganci shine gaskiyar mu a gare ku.

Shiri na Strontium Carbonate

 1.Hanyar lalata hanyar.
An murkushe Celestite kuma an amsa tare da maganin soda ash na 2h a zafin jiki na 100 ℃.Matsakaicin farko na sodium carbonate shine 20%, adadin sodium carbonate da aka ƙara shine 110% na adadin ka'idar, kuma girman barbashi na foda shine raga 80.A karkashin wannan yanayin, adadin bazuwar zai iya kaiwa fiye da 97%.Bayan tacewa, ƙaddamar da sodium sulfate a cikin tacewa zai iya kaiwa 24%.Beat da danyen strontium carbonate da ruwa, ƙara hydrochloric acid kayan yaji slurry zuwa pH3, da kuma bayan 2 ~ 3h a 90 ~ 100 ℃, ƙara barium remover don cire barium, sa'an nan daidaita slurry da ammonia zuwa pH6.8 ~ 7.2 don cire impurities. .Bayan tacewa, filtrate yana zubar da strontium carbonate tare da ammonium bicarbonate ko ammonium carbonate bayani, sannan tace don cire maganin ammonium chloride.Bayan bushewa da kek ɗin tacewa, an shirya samfurin strontium carbonate.

SrSO4+Na2CO3→SrCO3+Na2SO4

SrCO3+2HCl→SrCl2+CO2↑+H2O

SrCl2+NH4HCO3→SrCO3+NH4Cl+HCl

2.Hanyar rage kwal.
Celestite da pulverized kwal suna crushed su wuce 20 meshes a matsayin albarkatun kasa, da rabo daga tama zuwa ci ne 1: 0.6 ~ 1: 0.7, rage da kuma gasashe a zazzabi na 1100 ~ 1200 ℃, bayan 0.5 ~ 1.0h, da calcined abu. ana leshi sau biyu, a wanke sau daya, ana leka a 90 ℃, a jika na tsawon sa'o'i 3 kowane lokaci, kuma jimlar leaching na iya kaiwa sama da 82%.Ana tace maganin leaching, ragowar tacewa yana zubar da hydrochloric acid, kuma strontium yana kara dawowa, kuma ana kara tacewa tare da maganin mirabilite don cire barium, Sannan ƙara ammonium bicarbonate ko sodium carbonate bayani don amsawa don haifar da hazo strontium carbonate (ko kai tsaye carbonize da carbon dioxide), sa'an nan kuma raba, bushe, da niƙa don samar da strontium carbonate kayayyakin.

SrSO4+2C→SrS+2CO2

2SrS+2H2O → Sr (OH) 2+Sr (HS) 2

Sr(OH)2+Sr(HS)2+2NH4HCO3→2Sr(CO3+2NH4HS+2H2O

3.Thermal bayani na strontium siderite.
Ana niƙasa strontium siderite da coke a haɗa su cikin cakuda daidai gwargwadon rabon tama zuwa coke = 10: 1 (rabin nauyi).Bayan gasa a 1150 ~ 1250 ℃, carbonates suna bazuwa don samar da clinker dauke da strontium oxide da sauran karfe oxides.Clinker yana leaching ta matakai uku, kuma mafi kyawun zafin jiki shine 95 ℃.Mataki na biyu da na uku za a iya leached a.Yi aiki a 70-80 ℃.Maganin leaching yana sa ƙaddamarwar strontium hydroxide ya zama 1mol/L, wanda ke da amfani ga rarrabuwar ƙazanta Ca2+ da Mg2+.Ƙara ammonium bicarbonate zuwa tacewa don carbonization don samun strontium carbonate.Bayan rabuwa, bushewa da murkushewa, ana samun strontium carbonate da aka gama.

SrCO3→SrO+C02↑

SrO+H2O→Sr(OH)2

Sr(OH)2+NH4HCO3→SrCO3↓+NH3·H2O+H2O

4. Cikakken amfani.
Daga cikin brine na karkashin kasa mai dauke da bromine da strontium, strontium da ke dauke da barasa uwa bayan cirewar bromine za a cire shi da lemun tsami, a kwashe, a sanyaya a sanyaya, sannan a cire sodium chloride, sannan a cire calcium da soda caustic, sannan a saka ammonium bicarbonate don canzawa. strontium hydroxide zuwa cikin strontium carbonate hazo, sa'an nan kuma kurkura da bushe don samar da strontium carbonate kayayyakin.

SrC12+2NaOH→Sr(OH)2+2NaCl

Sr(OH)2+NH4HCO3→SrCO3+NH3·H2O+H2O

Jawabin Mai siye

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Kai!Ka sani, Wit-Stone kamfani ne mai kyau sosai!Sabis ɗin yana da kyau kwarai da gaske, fakitin samfuran yana da kyau sosai, saurin isarwa kuma yana da sauri sosai, kuma akwai ma'aikatan da ke amsa tambayoyi akan layi 24 hours a rana.

Sabis na kamfanin yana da ban mamaki sosai.Duk kayan da aka karɓa an cika su da kyau kuma an haɗa su tare da alamomi masu dacewa.Marufi yana da matsewa kuma saurin kayan aiki yana da sauri.

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Ingantattun samfuran sun fi girma sosai.Abin da ya ba ni mamaki shi ne, halin hidimar kamfanin tun daga lokacin da na karɓi wannan tambaya har zuwa lokacin da na tabbatar da cewa an karɓi kaya a matakin farko ne, wanda hakan ya sa na ji daɗi sosai da farin ciki sosai.

FAQ

Q1: Yadda za a tabbatar da ingancin samfurin kafin sanya umarni?

Kuna iya samun samfuran kyauta daga gare mu ko ɗaukar rahoton SGS azaman tunani ko shirya SGS kafin lodawa.

Q2: Menene farashin ku?

Farashin mu yana iya canzawa dangane da wadata da sauran abubuwan kasuwa.Za mu aiko muku da wani sabunta jerin farashin bayan kamfanin ku tuntube mu don ƙarin bayani.

Q3: Wadanne ka'idoji kuke aiwatarwa don samfuran ku?

A: Matsayin SAE da ISO9001, SGS.

Q4. Menene lokacin bayarwa?

A: 10-15 kwanakin aiki bayan karɓar biyan kuɗi na abokin ciniki.

Q5: Za ku iya ba da takaddun da suka dace?

Ee, za mu iya samar da mafi yawan takaddun ciki har da Takaddun Takaddun Bincike / Amincewa;Inshora;Asalin, da sauran takaddun fitarwa inda ake buƙata.

Q6.ta yaya za mu iya tabbatar da inganci?

Kuna iya samun samfuran kyauta daga gare mu ko ɗaukar rahoton SGS azaman tunani ko shirya SGS kafin lodawa.


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