izindaba

 

 

 

ISHIDI LEDATHA YOKUPHEPHA

ngokoMthethonqubo (EC) No. 1907/2006

Inguqulo 6.5

Idethi Yokubuyekeza 15.09.2020

Idethi yokuphrinta 12.03.2021 GENERIC EU MSDS – AYIKHO IDATHA ETHILE YEZWE – AYIKHO IDATHA YE-OEL

 

 

 

ISIQEPHU 1: Ukuhlonzwa kwento/ingxube kanye nenkampani/umsebenzi

1.1Izihlonzi zomkhiqizo

Igama lomkhiqizo :N,N- Dimethylaniline

Inombolo yomkhiqizo: 407275

Ibhrendi :I-MIT-IVY

Inkomba-No. : 612-016-00-0

Finyelela Inomboro : Inombolo yokubhalisa ayitholakali kule nto njenge

into noma ukusetshenziswa kwayo kukhululiwe ekubhalisweni, ithoni yonyaka ayidingi ukubhaliswa noma ukubhaliswa kuhloswe ukuba kube nomnqamulajuqu wokubhalisa kamuva.

I-CAS-No. : 121-69-7

1.2Ukusetshenziswa okuhlobene okuhlonziwe kwento noma ingxube nokusetshenziswa kuyalulekwa ngokumelene

Ukusetshenziswa okuhlonziwe: Amakhemikhali aselabhorethri, Ukwenziwa kwezinto

1.3Imininingwane yomhlinzeki wedatha yezokuphepha ishidi

 

Inkampani: Mit-ivy Industry Co., Ltd

 

Ucingo: +0086 1380 0521 2761

 

Ifeksi : +0086 0516 8376 9139

 

1.4 Inombolo yocingo yesimo esiphuthumayo

 

 

Inombolo Yezimo Eziphuthumayo: +0086 1380 0521 2761

 

+0086 0516 8376 9139

 

 

 

 

 

 

 

 

 

 

ISIQEPHU 2: Ukuhlonzwa kwezingozi

2.1Ukuhlukaniswa kwento noma ingxube

Ukuhlukaniswa ngokoMthethonqubo (EC) No 1272/2008

Ubuthi obunamandla, Omlomo (Isigaba 3), H301 Ubuthi obunamandla, Ukuhogela (Isigaba 3), H331 Ubuthi obunamandla, Isikhumba (Isigaba 3), H311 Carcinogenicity (Isigaba 2), H351

Ingozi yasemanzini yesikhathi eside (ehlala njalo) (Isigaba 2), H411

Ukuze uthole umbhalo ogcwele Wezitatimende H ezishiwo kulesi Sigaba, bheka Isigaba 16.

2.2Ilebula izakhi

Ukulebula ngokoMthethonqubo (EC) No 1272/2008

 

I-pictogram

 

Igama lesiginali Isitatimende Sengozi Yengozi

H301 + H311 + H331 Bunobuthi uma igwinywe, ithinta isikhumba noma uma ihogeliwe.

H351 Kusolwa ukuthi udala umdlavuza.

I-H411 Inobuthi empilweni yasemanzini enemiphumela ehlala isikhathi eside.

Izitatimende zokuqapha

P201 Thola iziyalezo ezikhethekile ngaphambi kokusetshenziswa.

P273 Gwema ukudedela imvelo.

P280 Gqoka amagilavu ​​okuzivikela/ izingubo zokuzivikela.

I-P301 + P310 + P330 UMA IGWANYWA: Shayela ngokushesha Isikhungo/ udokotela.

Hlanza umlomo.

P302 + P352 + P312 UMA ESESIKHUmbeni: Geza ngamanzi amaningi.Shayela I-POISON CENTRE/

udokotela uma uzizwa ungaphilile.

I-P304 + P340 + P311 UMA IHHOVA: Khipha umuntu emoyeni omusha futhi uhlale unethezekile.

zokuphefumula. Shayela i-POISON CENTER/ udokotela.

 

Izitatimende Zengozi Ezengeziwe

2.3Okunye izingozi

akukho

 

Le nto/ingxube ayinazo izingxenye ezibhekwa njengeziqhubekayo, i-bioaccumulative kanye nobuthi (PBT), noma eziphikelela kakhulu futhi i-bioaccumulative kakhulu (vPvB) kumazinga angu-0.1% noma ngaphezulu.

 

 

ISIQEPHU 3: Ukwakhiwa/ulwazi ngezithako

3.1 Izinto

Ifomula: C8H11N

Isisindo se-molecule: 121,18 g/mol

I-CAS-No. : 121-69-7

EC-No. : 204-493-5

Inkomba-No. : 612-016-00-0

 

Isakhi Ukwahlukanisa Ukugxila
N,N-dimethylaniline
I-Acute Tox. 3; Carc. 2; I-Aquatic Chronic 2; I-H301, H331, H311, H351, H411 <= 100 %

Ukuze uthole umbhalo ogcwele Wezitatimende H ezishiwo kulesi Sigaba, bheka Isigaba 16.

 

 

ISIQEPHU 4: Usizo lokuqala izinyathelo

4.1Incazelo yezinyathelo zosizo lokuqala Okujwayelekile iseluleko

Bonana nodokotela. Bonisa udokotela okhona leli phepha ledatha yokuphepha.

Uma ehogelwe

Uma uphefumula, hambisa umuntu emoyeni omusha. Uma ungaphefumuli, nikeza ukuphefumula okwenziwa. Bonana nodokotela.

 

Uma kwenzeka ukuthintana kwesikhumba

Geza ngensipho namanzi amaningi. Thatha isisulu ngokushesha esibhedlela. Bonana nodokotela.

Uma uthintana namehlo

Hlanza amehlo ngamanzi njengesinyathelo sokuzivikela.

Uma igwinywe

UNGABANZI ukuhlanza. Ungalokothi unikeze noma yini ngomlomo kumuntu oqulekile. Hlanza umlomo ngamanzi. Bonana nodokotela.

4.2Izimpawu ezibaluleke kakhulu kanye nemiphumela, kokubili acute kanye ibambezelekile

Izimpawu nemiphumela ebaluleke kakhulu eyaziwayo ichazwa kulebula (bona isigaba 2.2) kanye/noma esigabeni 11

4.3Inkomba yanoma yikuphi ukunakwa ngokushesha kanye nokwelashwa okukhethekile okudingekayo

Ayikho idatha etholakalayo

 

 

ISIQEPHU 5: Izinyathelo zokucisha umlilo

5.1Imidiya yokucisha Ukucima okufanelekile abezindaba

Sebenzisa isifutho samanzi, igwebu elimelana notshwala, ikhemikhali eyomile noma isikhutha.

5.2Izingozi ezikhethekile ezivela entweni noma ingxube

I-carbon oxides, i-nitrogen oxides (NOx)

5.3Izeluleko zabacimi bomlilo

Gqoka izisetshenziswa zokuphefumula ezizibambele wena uma kunesidingo.

5.4Ngokuqhubekayo ulwazi

Sebenzisa isifutho samanzi ukupholisa iziqukathi ezingavuliwe.

 

 

ISIGABA 6: Izinyathelo zokudedelwa ngengozi

6.1Izinyathelo zokuzivikela, okokuvikela kanye nezimo eziphuthumayo izinqubo

Gqoka isivikelo sokuphefumula. Gwema ukuphefumula, inkungu noma igesi. Qinisekisa ukuthi kungena umoya owanele. Susa yonke imithombo yokuthungela. Thuthukisa abasebenzi ezindaweni eziphephile. Qaphela imihwamuko enqwabelanayo yenze iziqhumane. Umhwamuko unganqwabelana ezindaweni eziphansi.

Ukuze uthole ukuvikelwa komuntu siqu bheka isigaba 8.

6.2Ezemvelo izinyathelo zokuzivikela

Vimbela ukuvuza okwengeziwe noma ukuchitheka uma kuphephile ukwenza kanjalo. Ungavumeli umkhiqizo ungene emiseleni. Ukukhipha endaweni ezungezile kufanele kugwenywe.

6.3Izindlela kanye nezinto zokuvimbela nokuhlanza up

Iqukathe ukuchitheka, bese uqoqa ngesicoci esivikelwe ngogesi noma ngokuxubha bese ufaka esitsheni ukuze ulahlwe ngokwemithetho yendawo (bheka isigaba 13). Gcina ezitsheni ezifanele, ezivaliwe ukuze ulahlwe.

6.4Ireferensi kokunye izigaba

Ukuze uthole ukuchithwa bheka isigaba 13.

 

 

 

ISIQEPHU 7: Ukuphatha nokugcina

7.1Izinyathelo zokuphepha ukuphatha

Gwema ukuthinta isikhumba namehlo. Gwema ukuhogela umhwamuko noma inkungu.

Ziqhelelanise nemithombo yokuthungela - Akubhenywa.Thatha izinyathelo zokuvimbela ukunqwabelana kweshaji ye-electrostatic.

Ukuze uthole izinyathelo zokuphepha bheka isigaba 2.2.

7.2Imibandela yokugcina okuphephile, okuhlanganisa nanoma yisiphi ukungahambisani

Gcina endaweni epholile. Gcina isitsha sivalwe ngokuqinile endaweni eyomile futhi enomoya omuhle. Iziqukathi ezivulwayo kufanele zivalwe kabusha ngokucophelela futhi zigcinwe zimile ukuze zingavuzi.

7.3Isiphetho esiqondile sebenzisa

Ngaphandle kokusetshenziswa okushiwo esigabeni 1.2 akukho okunye ukusetshenziswa okuqondile okubekiwe

 

ISIGABA 8: Izilawuli zokuchayeka/ukuvikelwa komuntu siqu

8.1Lawula imingcele

Izithako ezinemingcele yokulawula indawo yokusebenza

8.2Ukuchayeka izilawuli

Izilawuli zobunjiniyela ezifanele

Gwema ukuthinta isikhumba, amehlo nezingubo. Geza izandla ngaphambi kwekhefu futhi ngokushesha ngemva kokuphatha umkhiqizo.

Imishini yokuzivikela yomuntu siqu

 

Ukuvikela iso/ubuso

Isivikelo sobuso nezibuko zokuphepha Sebenzisa okokusebenza kokuvikela amehlo okuhloliwe futhi kwagunyazwa ngaphansi kwamazinga afanele kahulumeni afana ne-NIOSH (US) noma i-EN 166(EU).

Ukuvikelwa kwesikhumba

Bamba ngamagilavu. Amagilavu ​​kufanele ahlolwe ngaphambi kokusetshenziswa. Sebenzisa indlela efanele yokukhipha amagilavu ​​(ngaphandle kokuthinta indawo engaphandle yegilavu) ukuze ugweme ukuthintana kwesikhumba nalo mkhiqizo. Lahla amagilavu ​​angcolile ngemva kokusetshenziswa ngokuhambisana nemithetho esebenzayo kanye nezinqubo ezinhle zaselabhorethri. Geza futhi womise izandla.

Amagilavu ​​okuvikela akhethiwe kufanele anelise ukucaciswa kwe-Regulation (EU) 2016/425 kanye ne-EN 374 ejwayelekile ethathwe kuyo.

Oxhumana naye ogcwele

Material: butyl-rabha

Ubuncane bogqinsi lwesendlalelo: 0,3 mm Isikhathi sokunqamula: 480 min

Impahla ehloliwe:Butoject® (KCL 897 / Aldrich Z677647, Usayizi M)

I-Splash contact Material: Irabha ye-Nitrile

Ubuncane bogqinsi lwesendlalelo: 0,4 mm Isikhathi sokunqamula: 30 min

umthombo wedatha:I-MIT-IVY,
ifoni008613805212761,
i-imeyiliCEO@MIT-IVY.COM, indlela yokuhlola: EN374

 

Uma isetshenziswa ekuxazululeni, noma ixutshwe nezinye izinto, futhi ngaphansi kwezimo ezihlukile ku-EN 374, thintana nomphakeli wamagilavu ​​agunyaziwe we-EC. Lesi sincomo singeseluleko kuphela futhi kufanele sihlolwe nguchwepheshe wezokuhlanzeka kwezimboni kanye nesikhulu sezokuphepha esijwayelene nesimo esithile sokusetshenziswa okulindelekile ngamakhasimende ethu. Akufanele kuthathwe njengokunikeza imvume yanoma yisiphi isimo sokusetshenziswa esithile.

Ukuvikelwa Komzimba

Isudi ephelele evikela amakhemikhali, Uhlobo lwempahla yokuzivikela kufanele lukhethwe ngokuya ngokugxila kanye nenani lento eyingozi endaweni ethile yokusebenza.

Okokuphefumula isivikelo

Lapho ukuhlolwa kwengozi kubonisa ukuthi iziphefumulo ezihlanza umoya zifanelekile sebenzisa isiphefumulo sobuso obugcwele esinenhlanganisela yezinhloso eziningi (US) noma thayipha amagobolondo okuphefumula i-ABEK (EN 14387) njengesipele sezilawuli zobunjiniyela. Uma umshini wokuphefumula kuyiyona ndlela yodwa yokuvikela, sebenzisa umshini wokuphefumula ogcwele ubuso obugcwele. Sebenzisa ama-respirators nezingxenye ezihloliwe futhi zagunyazwa ngaphansi kwamazinga afanelekile kahulumeni njenge-NIOSH (US) noma i-CEN (EU).

Ukulawulwa kokuchayeka kwemvelo

Vimbela ukuvuza okwengeziwe noma ukuchitheka uma kuphephile ukwenza kanjalo. Ungavumeli umkhiqizo ungene emiseleni. Ukukhipha endaweni ezungezile kufanele kugwenywe.

 

 

ISIQEPHU 9: Izakhiwo zomzimba kanye namakhemikhali

9.1Ulwazi oluyisisekelo ngokomzimba namakhemikhali izakhiwo

a) Ifomu Lokubukeka: Umbala Owuketshezi: Ophuzi ngokukhanyayo

b) Iphunga Ayikho idatha etholakalayo

c) I-Odor Threshold Ayikho idatha etholakalayo

d) pH 7,4 ku-1,2 g/l ku-20 °C

 

 

e) Ukuncibilika

iphuzu/indawo yokubanda

f) Iphuzu lokuqala lokubilisa kanye nebanga lokubilisa

Iphuzu elincibilikayo/ububanzi: 1,5 – 2,5 °C – lit. 193 - 194 °C - ovuthayo.

 

g) Iphuzu elikhanyayo 75 °C - inkomishi evaliwe

h) Izinga lokuhwamuka Ayikho idatha etholakalayo

 

i) Ukuvutha (okuqinile, igesi)

j) Ukuvutha okuphezulu/okuphansi noma imikhawulo yokuqhuma

Ayikho idatha etholakalayo

 

Umkhawulo wokuqhuma okuphezulu: 7 %(V) Umkhawulo wokuqhuma ophansi: 1 %(V)

 

k) Umfutho womhwamuko 13 hPa ku-70 °C

I-1 hPa ku-30 ​​°C

l) Ukuminyana komphunga 4,18 – (Umoya = 1.0)

m) Ukuminyana okuhlobene 0,956 g/cm3 ku-25 °C

n) Ukuncibilika kwamanzi ca.1 g/l

 

  • o) I-partition coefficient: n-octanol/amanzi

p) Izinga lokushisa le-Autoignition

q) Izinga lokushisa lokubola

I-log Power: 2,62

 

Ayikho idatha etholakalayo Ayikho idatha etholakalayo

 

r) I-Viscosity Ayikho idatha etholakalayo

s) Iziqhumane Ayikho idatha etholakalayo

t) Izakhiwo ze-Oxidizing Ayikho idatha etholakalayo

9.2Okunye ukuphepha ulwazi

Ukushuba kobuso 3,83 mN/m ku-2,5 °C

 

 

Ukuminyana komhwamuko

4,18 – (Umoya = 1.0)

 

 

 

ISIQEPHU SE-10: Ukuzinza nokusebenza kabusha

10.1Ukusebenza kabusha

Ayikho idatha etholakalayo

10.2Amakhemikhali ukuzinza

Izinzile ngaphansi kwezimo zokulondoloza ezinconyiwe.

10.3Amathuba okuba yingozi ukusabela

Ayikho idatha etholakalayo

10.4Izimo okufanele uzigweme

Ukushisa, amalangabi nezinhlansi.

10.5Akuhambisani izinto zokwakha

Ama-oxidizing agents anamandla, ama-asidi aqinile, ama-Acid chloride, ama-Acid anhydrides, ama-Chloroformates, amaHalogens

10.6Ukubola okuyingozi imikhiqizo

Imikhiqizo eyingozi yokubola eyakhiwe ngaphansi kwezimo zomlilo. - I-carbon oxides, i-nitrogen oxides (NOx)

Eminye imikhiqizo yokubola - Ayikho idatha etholakalayo Uma kwenzeka kusha: bona isigaba 5

 

 

ISIGABA 11: Ulwazi lwe-toxicology

11.1 Ulwazi ngemiphumela yobuthi Ubuthi obuyingozi

I-LD50 Oral – Rat – 951 mg/kg

Amazwana: Ukuziphatha: Ukungalali (umsebenzi ovamile wokucindezeleka). Ukuziphatha:Ukuthuthumela. I-Cyanosis

I-LD50 Dermal – Unogwaja – 1.692 mg/kg

Ukugqwala/ukucasuka kwesikhumba

Isikhumba – Unogwaja

Umphumela: Ukuluma kwesikhumba okumaphakathi - 24 h

 

Ukulimala okukhulu kwamehlo/ukucasuka kwamehlo

Amehlo – Unogwaja

Umphumela: Ukucasuka kwamehlo okuncane - 24 h (Umhlahlandlela Wokuhlola we-OECD 405)

Ukuphefumula noma ukuzwela kwesikhumba

Ayikho idatha etholakalayo

I-Gem cell mutagenicity

I-Hamster Lungs

Ukuhlolwa kwe-Micronucleus Hamster

isibeletho

Ukushintshana kwe-chromatid kadade

 

Igundane

Ukulimala kwe-DNA

I-Carcinogenicity

Lo mkhiqizo uqukethe noma uqukethe ingxenye engakwazi ukuhlukaniswa ngokuphathelene ne-carcinogenicity ngokusekelwe kusigaba sawo se-IARC, ACGIH, NTP, noma i-EPA.

Ubufakazi obulinganiselwe be-carcinogenicity ezifundweni zezilwane

I-IARC: Asikho isithako salo mkhiqizo esikhona emazingeni angaphezu noma alingana no-0.1% esikhonjwa njengento engenzeka, engenzeka noma eqinisekisiwe yi-IARC.

Ubuthi bokuzala

Ayikho idatha etholakalayo

Ubuthi obuqondile besitho esiqondiwe - ukuchayeka okukodwa

Ayikho idatha etholakalayo

Ubuthi obuthile bezitho eziqondiwe - ukuchayeka ngokuphindaphindiwe

Ayikho idatha etholakalayo

Ingozi yokuphefumula

Ayikho idatha etholakalayo

Ulwazi Olwengeziwe

I-RTECS: BX4725000

 

Ukungena emzimbeni kuholela ekwakhekeni kwe-methemoglobin, okuthi lapho kugxilwa ngokwanele kubangele i-cyanosis. Ukuqala kungase kubambezeleke amahora angu-2 kuya kwangu-4 noma ngaphezulu., Ukulimala kwamehlo., Ukuphazamiseka kwegazi

 

 

 

ISIQEPHU 12: Ulwazi lwemvelo

12.1Ubuthi

Ubuthi ezinhlanzini LC50 - I-Pimephales promelas (i-fathead minnow) - 65,6 mg/l - 96,0 h

 

Ubuthi ku-daphnia nezinye izilwane ezingenamgogodla zasemanzini

EC50 – Daphnia magna (Izeze zamanzi) – 5 mg/l – 48 h

 

12.2Ukuphikelela kanye ukonakala

I-Biodegradability Biotic/Aerobic – Isikhathi sokuchayeka 28 d

Umphumela: 75 % – I-biodegradable kalula.

 

Isilinganiso BOD/ThBOD < 20 %

12.3Amandla we-Bioaccumulative

I-Bioaccumulation Oryzias latipes(N,N-dimethylaniline)

 

I-Bioconcentration factor (BCF): 13,6

12.4Ukuhamba emhlabathini

Ayikho idatha etholakalayo

12.5Imiphumela ye-PBT ne-vPvB ukuhlola

Le nto/ingxube ayinazo izingxenye ezibhekwa njengeziqhubekayo, i-bioaccumulative kanye nobuthi (PBT), noma eziphikelela kakhulu futhi i-bioaccumulative kakhulu (vPvB) kumazinga angu-0.1% noma ngaphezulu.

12.6Okunye okubi imiphumela

Kunobuthi empilweni yasemanzini enemiphumela ehlala isikhathi eside.

 

 

ISIQEPHU 13: Ukucatshangelwa kokulahlwa

13.1 Izindlela zokuhlanza imfucuza Umkhiqizo

Le nto evuthayo ingase ishiswe endaweni yokushisela amakhemikhali efakwe i-afterburner kanye ne-scrubber. Nikeza izixazululo ezingaphezulu nezingaphinde zisetshenziswe enkampanini yokulahla enelayisensi.

Iphakheji engcolile

Lahla njengomkhiqizo ongasetshenzisiwe.

 

 

ISIQEPHU 14: Ulwazi lwezokuthutha

14.1UN inombolo

ADR/RID: 2253 IMDG: 2253 IATA: 2253

14.2Igama elifanele lokuthumela le-UNADR/RID: N,N-DIMETHYLANILINE IMDG: N,N-DIMETHYLANILINE IATA: N,N-Dimethylaniline

14.3Ingozi yezokuthutha izigaba

ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1

14.4Ukupakisha iqembu

ADR/RID: II IMDG: II IATA: II

14.5Ezemvelo izingozi

ADR/RID: yebo IMDG Okungcolisa olwandle: yebo IATA: cha

14.6Izinyathelo zokuphepha ezikhethekile ze umsebenzisi

Ayikho idatha etholakalayo

 

 

ISIGABA 15: Ulwazi lokulawula

15.1Ukuphepha, impilo kanye nemithethonqubo/imithetho eqondene ngqo into noma ingxube

 

Leli phepha ledatha elibalulekile lokuphepha lihambisana nezimfuneko zoMthethonqubo (EC) No. 1907/2006.

REACH - Imikhawulo ekwenziweni, : ukubekwa emakethe kanye nokusetshenziswa okuthile

izinto eziyingozi, amalungiselelo nezindatshana (Isijobelelo XVII)

 

 

15.2Ukuphepha Kwamakhemikhali Ukuhlola

Kulo mkhiqizo ukuhlolwa kokuphepha kwamakhemikhali akuzange kwenziwe

 

 

ISIQEPHU 16: Olunye ulwazi

Umbhalo ogcwele Wezitatimende ze-H okukhulunywe ngazo ngaphansi kwesigaba 2 no-3.

I-H301 Inobuthi uma igwinywe.

 

I-H301 + H311 + H331

Inobuthi uma igwinywe, ithinta isikhumba noma uma ihogeliwe.

 

H311 Ubuthi uma uthintana nesikhumba.

H331 Ubuthi uma uhogeliwe.

H351 Kusolwa ukuthi udala umdlavuza.

I-H411 Inobuthi empilweni yasemanzini enemiphumela ehlala isikhathi eside.

Ulwazi olunzulu

I-Mit-ivy Industry co., ltd Ilayisensi inikezwe ukwenza amakhophi ephepha angenamkhawulo ukuze asetshenziswe ngaphakathi kuphela.

Imininingwane engenhla kukholakala ukuthi ilungile kodwa ayifuni ukuthi ihlanganise konke futhi izosetshenziswa kuphela njengesiqondiso. Ulwazi olukule dokhumenti lusekelwe esimweni samanje solwazi lwethu futhi luyasebenza emkhiqizweni ngokuphathelene nezinyathelo zokuphepha ezifanele. Ayimeli noma yisiphi isiqinisekiso sezakhiwo zomkhiqizo. I-Mit-ivy Industry co., ltd ngeke ibekwe icala nganoma yimuphi umonakalo obangelwe ukuphatha noma ngokuthintana nomkhiqizo ongenhla. Bona uhlangothi olungemuva lwe-invoyisi noma isiliphu sokupakisha ukuze uthole imigomo nemibandela yokuthengisa eyengeziwe.

 

Ukufakwa kwebhrendi kunhlokweni kanye/noma ngaphansi kwale dokhumenti kungase kungabonakali okwesikhashana nomkhiqizo othengiwe njengoba sishintsha ukumaketha kwethu. Nokho, lonke ulwazi olukudokhumenti mayelana nomkhiqizo luhlala lungashintshiwe futhi lufana nomkhiqizo o-odiwe. Ukuze uthole ulwazi olwengeziwe sicela uthinteceo@mit-ivy.com

 

 

N,N-Dimethylaniline 121-69-7 MSDS MIT-IVY

 


Isikhathi sokuthumela: Aug-27-2021