Uyazi ngakumbi malunga neenkcukacha kunye nobukhulu beenqwaba zeshiti zentsimbi?
Iinqwaba zeS355 U Type Hot Rolled Steel Sheet
Iinkcukacha zeMveliso
| Umgangatho | I-GB/EN | Uku-invoyisi | Ngobunzima Bokwenyani |
| Ukunyamezelana | Akukho nanye | Ixesha lokuzisa | Iintsuku ezi-7 ukuya kwezi-15 |
| I-alloy okanye Hayi | Akukho nanye | Ibanga | S235/S275/S355 |
| Inkonzo Yokucubungula | I-OEM | Indawo yemvelaphi | ITinajin, eTshayina |
Isakhiwo seekhemikhali zenqwaba yeshiti yentsimbi
| Ibanga lentsimbi | C (%) | I-Si (%) | Mn (%) | I-P (%) | S (%) | N (%) | I-Cu (%) |
| S355 | ≤ 0.24 | ≤ 0.55 | ≤ 1.60 | ≤ 0.035 | ≤ 0.035 | ≤ 0.012 | ≤ 0.55* |
Phawula: I-Cu (Copper) ayinyanzelekanga ngokuxhomekeke kwiinkcukacha zokumelana nokugqwala okuphuculweyo. Amaxabiso anokwahluka kancinci ngokomenzi kunye nohlobo lwecandelo. Isatifikethi sovavanyo lweMill (MTC) siyafumaneka xa siceliwe.
Iipropati zoomatshini zeNqwaba yePhepha leNsimbi
| Ibanga lentsimbi | Ubukhulu (mm) | Amandla okuKhula (ReH) MPa | Amandla okuThamba (Rm) MPa | Ukwandiswa (%) |
| S355JR | ≤ 16 | ≥ 355 | 470 – 630 | ≥ 22 |
| S355JR | 16 – 40 | ≥ 345 | 470 – 630 | ≥ 22 |
| S355JR | 40 – 63 | ≥ 335 | 470 – 630 | ≥ 21 |
| S355JR | 63 – 80 | ≥ 325 | 470 – 630 | ≥ 20 |
Phawula:Iimpawu zoomatshini ziyahluka ngokuxhomekeke kubukhulu kunye nenkqubo yokuvelisa. Amaxabiso asekelwe kwiimfuno ezisemgangathweni ze-EN. Isatifikethi sovavanyo lweMill (MTC) sinokubonelelwa xa siceliwe.
Ubungakanani bePile yePhepha leNsimbi
| icandelo | Ubukhulu | Indawo yeCandelo | Ubunzima | Umzuzu ukungabi namandla | Imodulus yecandelo | |||
| Ububanzi | Ubude | Ubukhulu | Inqwaba | Udonga | ||||
| w | h | t | ||||||
| mm | Mm | mm | cm2/inqwaba | kg/m | kg/m2 | cm4/m | cm3/m | |
| ⅠA | 400 | 85 | 8 | 45.21 | 35.5 | 88.8 | 4500 | 529 |
| Ⅱ | 400 | 100 | 10.5 | 61.2 | 48 | 120 | 8740 | 874 |
| Ⅲ | 400 | 125 | 13 | 76.4 | 60 | 150 | 16800 | 1340 |
| ⅢA | 400 | 150 | 13.1 | 74.4 | 58.4 | 146 | 22800 | 1520 |
| Ⅳ | 400 | 170 | 15.5 | 97 | 76.1 | 190 | 38600 | 2270 |
| ⅤL | 500 | 200 | 24.3 | 133.8 | 105 | 210 | 63000 | 3150 |
| ⅥL | 500 | 225 | 27.6 | 153 | 120 | 240 | 86000 | 3820 |
| ⅡW | 600 | 130 | 10.3 | 78.7 | 61.8 | 103 | 13000 | 1000 |
| ⅢW | 600 | 180 | 13.4 | 104 | 81.6 | 136 | 32400 | 1800 |
| ⅣW | 600 | 210 | 18 | 135.3 | 106 | 177 | 56700 | 2700 |
| Icandelo | Ubukhulu | Ubunzima | Ixesha lokungakhathali | Imodyuli yecandelo | ||||
| Ububanzi | Ubude | Ubukhulu | Ngenqwaba nganye | Udonga | ||||
| w | h | t | s | |||||
| mm | mm | mm | mm | kg/m | kg/m2 | cm4/m | cm3/m | |
| Ububanzi obuyi-750mm | ||||||||
| I-GHU 14 | 750 | 408 | 10.0 | 8.3 | 77.9 | 104 | 28 690 | 1 415 |
| I-GHU 16 | 750 | 411 | 11.5 | 9.3 | 86.3 | 115 | 32 860 | 1 610 |
| I-GHU 18 | 750 | 441 | 10.5 | 9.1 | 88.5 | 118 | 39 310 | 1 790 |
| I-GHU 20 | 750 | 444 | 12.0 | 10.0 | 96.9 | 129 | 44 450 | 2 010 |
| I-GHU 23 | 750 | 447 | 13.0 | 9.5 | 102.1 | 136 | 50 710 | 2 280 |
| I-GHU 25 | 750 | 450 | 14.5 | 10.2 | 110.4 | 147 | 56 250 | 2 510 |
| Ububanzi obuyi-600mm | ||||||||
| I-GHU 12 | 600 | 360 | 9.8 | 9.0 | 66.1 | 110 | 21 610 | 1 210 |
| I-GHU 12S | 600 | 360 | 10.0 | 10.0 | 71.0 | 118 | 22 670 | 1 270 |
| I-GHU 18-1 | 600 | 430 | 10.2 | 8.4 | 72.6 | 121 | 35 960 | 1 680 |
| I-GHU 18 | 600 | 430 | 11.2 | 9.0 | 76.9 | 128 | 38 660 | 1 810 |
| I-GHU 18+1 | 600 | 430 | 12.2 | 9.5 | 81.1 | 135 | 41 330 | 1 930 |
| I-GHU 22-1 | 600 | 450 | 11.1 | 9.0 | 81.9 | 137 | 46 390 | 2 070 |
| I-GHU 22 | 600 | 450 | 12.1 | 9.5 | 86.1 | 144 | 49 470 | 2 210 |
| I-GHU 22+1 | 600 | 450 | 13.1 | 10.0 | 90.4 | 151 | 52 520 | 2 345 |
| I-GHU 28-1 | 600 | 452 | 14.2 | 9.7 | 97.4 | 162 | 60 590 | 2 690 |
| I-GHU 28 | 600 | 454 | 15.2 | 10.1 | 101.8 | 170 | 64 470 | 2 850 |
| I-GHU 28+1 | 600 | 456 | 16.2 | 10.5 | 106.2 | 177 | 68 390 | 3 010 |
| I-GHU 32-1 | 600 | 452 | 18.5 | 10.6 | 109.9 | 183 | 69 220 | 3 075 |
| I-GHU 32 | 600 | 452 | 19.5 | 11.0 | 114.1 | 190 | 72 330 | 3 210 |
| I-GHU 32+1 | 600 | 452 | 20.5 | 11.4 | 118.4 | 197 | 75 410 | 3 350 |
| Ububanzi obuyi-600mm kunye ne-400mm | ||||||||
| I-GHU 6N | 600 | 309 | 6.0 | 6.0 | 41.9 | 70 | 9 680 | 635 |
| I-GHU 7N | 600 | 310 | 6.5 | 6.4 | 44.1 | 74 | 10 460 | 685 |
| I-GHU 7S | 600 | 311 | 7.2 | 6.9 | 46.3 | 77 | 11 550 | 750 |
| I-GHU 7HWS | 600 | 312 | 7.3 | 6.9 | 47.4 | 79 | 11 630 | 755 |
| I-GHU 8N | 600 | 312 | 7.5 | 7.1 | 48.5 | 81 | 12 020 | 780 |
| I-GHU 8S | 600 | 313 | 8.0 | 7.5 | 50.8 | 85 | 12 810 | 830 |
| I-GHU 10N | 600 | 316 | 9.0 | 6.8 | 55.8 | 93 | 15 710 | 1000 |
| I-GHU 11N | 600 | 318 | 10.0 | 7.4 | 60.2 | 100 | 17 460 | 1 105 |
| I-GHU 12N | 600 | 320 | 11.0 | 8.0 | 64.6 | 108 | 19 230 | 1 230 |
| I-GHU 13N | 600 | 418 | 9.0 | 7.4 | 59.9 | 100 | 26 600 | 1 280 |
| I-GHU 14N | 600 | 420 | 10.0 | 8.0 | 64.3 | 107 | 29 420 | 1 410 |
| I-GHU 15N | 600 | 422 | 11.0 | 8.6 | 68.7 | 115 | 32 270 | 1 540 |
| I-GHU 16N | 600 | 430 | 10.2 | 8.4 | 72.6 | 121 | 35 960 | 1 680 |
| I-GHU 18N | 600 | 430 | 11.2 | 9.0 | 76.9 | 128 | 38 660 | 1 810 |
| I-GHU 20N | 600 | 430 | 12.2 | 9.5 | 81.1 | 135 | 41 310 | 1 930 |
| I-GHU 21N | 600 | 450 | 11.1 | 9.0 | 81.9 | 137 | 46 390 | 2 070 |
| I-GHU 22N | 600 | 450 | 12.1 | 9.5 | 86.1 | 144 | 49 470 | 2 210 |
| I-GHU 23N | 600 | 450 | 13.1 | 10.0 | 90.4 | 151 | 52 520 | 2 345 |
| I-GHU 27N | 600 | 452 | 14.2 | 9.7 | 97.4 | 162 | 60 590 | 2 690 |
| I-GHU 28N | 600 | 454 | 15.2 | 10.1 | 101.8 | 170 | 64 470 | 2 850 |
| I-GHU 30N | 600 | 456 | 16.2 | 10.5 | 106.2 | 177 | 68 390 | 3 010 |
| I-GHU 31N | 600 | 452 | 18.5 | 10.6 | 109.9 | 183 | 69 220 | 3 075 |
| I-GHU 32N | 600 | 452 | 19.5 | 11.0 | 114.1 | 190 | 72 330 | 3 210 |
| I-GHU 33N | 600 | 452 | 20.5 | 11.4 | 118.4 | 197 | 75 420 | 3 350 |
| I-GHU 16-400 | 400 | 290 | 12.7 | 9.4 | 62.0 | 155 | 22 600 | 1 570 |
| I-GHU 18-400 | 400 | 292 | 15.0 | 9.7 | 69.3 | 173 | 26 100 | 1 795 |
| Icandelo | Ubukhulu | Ubunzima | Ixesha lokungakhathali | Imodyuli yecandelo | ||||
| Ububanzi | Ubude | Ubukhulu | Ngenqwaba nganye | Udonga | ||||
| w | h | t | s | |||||
| mm | mm | mm | mm | kg/m | kg/m2 | cm4/m | cm3/m | |
| I-GHL 600 | 600 | 150 | 9.5 | 9.5 | 56.4 | 94 | 3825 | 510 |
| I-GHL 600K | 600 | 150 | 10 | 10 | 59.4 | 99 | 4050 | 540 |
| I-GHL 601 | 600 | 310 | 7.5 | 6,4 | 46.8 | 78 | 11520 | 745 |
| I-GHL 602 | 600 | 310 | 8.2 | 8 | 53.4 | 89 | 12870 | 830 |
| I-GHL 603 | 600 | 310 | 9.7 | 8.2 | 64.8 | 108 | 18600 | 1200 |
| I-GHL 603K | 600 | 310 | 10 | 9 | 68.1 | 113.5 | 19220 | 1240 |
| I-GHL 603 10/10 | 600 | 310 | 10 | 10 | 69.6 | 116 | 19530 | 1260 |
| I-GHL 604 | 600 | 380 | 10 | 9 | 73.8 | 123 | 30400 | 1600 |
| I-GHL 605 | 600 | 420 | 13 | 9.2 | 85.5 | 142.5 | 43890 | 2090 |
| I-GHL 606 | 600 | 435 | 14.4 | 9.2 | 94.2 | 157 | 54375 | 2500 |
| I-GHL 607 | 600 | 452 | 19 | 10.6 | 114 | 190 | 72320 | 3200 |
| I-GHL 703 | 700 | 400 | 9.5 | 8 | 67.5 | 96.4 | 24200 | 1210 |
| I-GHL 716 | 700 | 440 | 10.2 | 9.5 | 79.9 | 114.2 | 35200 | 1600 |
| I-GHL 720 | 750 | 450 | 12 | 10 | 96.4 | 128.5 | 45000 | 2000 |
Khuphela ikhathalogu epheleleyo
Ukutshixa iiPile zeSheet yentsimbi kunye nokusebenza okungangeni manzi
Uyilo: Inqwaba yePhepha leNsimbi eQhagamshelanayo, ukuvuleka kwamanzi ≤1×10⁻⁷ cm/s
Amazwe aseMelika: Iyahambelana ne-ASTM D5887 Standard yeLiner yokunciphisa ukuvuza kwamanzi phantsi kweeDrums.
Mzantsi-mpuma weAsia: Ilungele ukuvuza kwamanzi angaphantsi komhlaba ngamaxesha emvula ashushu
Inkqubo yokuvelisa iinqwaba zeeshiti zentsimbi
Ukuveliswa kweenqwaba zeeshiti zentsimbi kwenziwa ngenkqubo elawulwayo yokuqengqeleka okushushu ukuqinisekisa amandla aphezulu, ukusebenza ngokuchanekileyo kokuqhagamshela, kunye nomgangatho ohambelanayo.
1. Ukukhethwa kwezinto eziluhlaza
Iibhilethi zentsimbi ezikumgangatho ophezulu (ezifana ne-S235, S275, S355) ziyakhethwa kwaye zihlolwe ukwakheka kweekhemikhali kunye nomgangatho wangaphakathi.
2. Inkqubo yokuFudumeza
Iibhilethi zifudunyezwa kwisithando somlilo esiphinda sifudumale ukuya kubushushu obuphezulu ukuze kufumaneke iplastiki efanelekileyo yokuqengqeleka.
3. Ukwakheka kweHot Rolling
Intsimbi eshushu idlula kuthotho lwee-rolling mills ukuze yenze kancinci kancinci iprofayili yenqwaba yephepha efunekayo (uhlobo lwe-U, uhlobo lwe-Z, okanye amacandelo ewebhu athe tye).
4. Ukwakheka kwe-Interlock
Izixhobo zokuqengqa ngokuchanekileyo zenza inkqubo yokuqhina, ukuqinisekisa unxibelelwano oluqinileyo phakathi kweenqwaba ezikufutshane ukuze amanzi agcinwe kakuhle kwaye umhlaba ugcinwe kakuhle.
5. Inkqubo yokuPholisa
Iinqwaba zamaphepha ezenziweyo ziyapholiswa phantsi kweemeko ezilawulwayo ukuze kuzinziswe iipropati zoomatshini kwaye kuthintelwe ukuguguleka.
6. Ukulungisa nokusika
Iingqumba ziyalungiswa, zinqunyulwe zibe nobude obufunekayo, kwaye zihlolwe ukuba zichanekile na ubukhulu bazo kunye nokuhambelana kwazo.
7. Unyango Lomphezulu (Ukhetho)
Ezinye iindlela ziquka ukugalela nge-hot-dip galvanizing, ukupeyinta, okanye ukugalela nge-anti-corrosion ukuze kuphuculwe ukuqina kwiindawo zaselwandle nangaphantsi komhlaba.
8. Uhlolo loMgangatho
Uhlolo lokugqibela lubandakanya uvavanyo lobukhulu, ukuhlolwa okubonakalayo, kunye nokuqinisekiswa kwepropathi yoomatshini ngokwemigangatho ye-EN / ASTM.
9. Ukupakishwa kunye nokuthunyelwa
Iimveliso ziyahlanganiswa, ziphawulwe, kwaye zilungiselelwe ukupakishwa okufanelekileyo ukuthunyelwa ngaphandle kolwandle kunye nokuthunyelwa kwihlabathi liphela.
Le nkqubo iqinisekisa amandla aphezulu, ukusebenza okuthembekileyo kokutshixana, kunye nobomi benkonzo ende kwizicelo zokwakha, zaselwandle, kunye nobunjineli besiseko.
Umphezulu weNqwaba yePhepha leNsimbi
Amazwe aseMelika:Isigqubuthelo se-HDG senzelwa ukuhlangabezana neemfuno ze-ASTM A123/ISO 1461, kunye nobukhulu obuncinci besigqubuthelo se-zinc ≥ 85 μm ukuze kuxhathiswe ukugqwala kakuhle kwaye kusebenze ixesha elide. Inkqubo yesigqubuthelo se-3PE ikwayimfuneko ukuze kukhuselwe ngcono kwiindawo ezinobundlongondlongo ezifana nolwandle kunye nomhlaba ongaphantsi komhlaba. Lonke ulungiso lomphezulu luhambelana ne-RoHS kwaye luhlangabezana nemigangatho yamazwe ngamazwe yokusingqongileyo kunye nokuthumela ngaphandle.
Mzantsi-mpuma weAsia:I-hot-dip galvanizing enobukhulu obuyi-≥100 μm, kunye nenkqubo ye-epoxy coal tar enezintlu ezimbini, ibonelela ngokhuseleko oluhle kakhulu lokugqwala kwexesha elide kunye nokusebenza kakuhle kokutshiza ngetyuwa okungaphezulu kweeyure ezingama-5,000. Ke ngoko, le mveliso isebenza ngakumbi kwiindawo zaselwandle ezishushu nezine-corrosive kwaye inokubonelela ngobomi obude bomsebenzi kumsebenzisi kwiindawo ezikufutshane nolwandle naselwandle.
ISICELO
Iinqwaba zeeshiti zentsimbi zisetyenziswe kakhulu kubunjineli bokwakha, ubunjineli baselwandle, kunye necandelo leziseko zophuhliso ezinamandla aphezulu, ukuqina, kunye nenkqubo elungileyo yokutshixa.
Izakhiwo Zokugcina Izinto: Isetyenziswa ekubambeni iindonga kunye nokugcinwa kozinzo lwethambeka, yaye yembiwa phantsi komhlaba ukuze ibambe umhlaba.
Imisebenzi yaseManzini kunye neyoLwandle: Ivumelekile kwiindonga ze-quay, izikhululo zezibuko, iindonga zolwandle, iindawo zokukhusela amanzi, kunye nezakhiwo zokukhusela unxweme.
Ubunjineli beSiseko esiNzulu: Kwi-cofferdams, iziseko zeebhulorho, kunye nomsebenzi wokwemba umhlaba emanzini kunye nezinye iindlela zokwahlula amanzi nomhlaba.
Iiprojekthi zoLawulo lweZikhukula: Ndiqeshwe ekulawuleni amanzi nasekukhuseleni emanzini asemlanjeni ngee-dikes kunye nemiqobo yokulwa nezikhukula kunye nokuwakhupha amanzi.
Ukwakhiwa kweZiseko zoPhuhliso: Ukusetyenziswa kweemveliso kwiitonela, iindlela ezinkulu, oololiwe, iipaseji zoncedo ezingaphantsi komhlaba, nakwezinye iindawo zokwakha iziseko zophuhliso zokuxhasa ulwakhiwo kunye nokugcinwa komhlaba zininzi.
Izakhiwo zexeshana: Ifanelekile kwiinkqubo zenkxaso yokwemba okwethutyana kwiindawo zokwakha, inika ukufakwa nokususwa okulula.
Iingqumba zesinyithi ziqinisekisa ukugcinwa komhlaba okuqinisekisiweyo, ukuqina kwamanzi, kunye nokuzinza kwesakhiwo ixesha elide kwimisebenzi esisigxina neyexeshana.
Kutheni Ukhetha iRoyal Steel Group kwiinqwaba zePhepha zeNsimbi
1. Amandla Okuvelisa Aqinileyo
I-Royal Steel Group isebenzisa imigca yemveliso ephucukileyo ye-U Type kunye ne-Iinqwaba zePhepha zeNsimbi zohlobo lwe-Z, ukuqinisekisa imveliso ezinzileyo, ukudibana okuchanekileyo, kunye nomgangatho ohambelanayo kwiiprojekthi ezinkulu zeziseko zophuhliso.
2. Uluhlu lweeMveliso eziBanzi kunye nokwenza ngokwezifiso
Sibonelela ngoluhlu olupheleleyo lwee-sheet piles ezinee-grades ezahlukeneyo, ubude, ubukhulu, kunye neendlela zokukhusela ukugqwala, ezenzelwe amazibuko, iibhulorho, ii-cofferdams, kunye nemisebenzi yesiseko.
3. Imveliso ekhawulezayo kunye nokuhanjiswa ngexesha elifanelekileyo
Ngenxa yobuchule bokuvelisa obuzinzileyo kunye nocwangciso olusebenzayo, sixhasa iimfuno zeprojekthi ezingxamisekileyo kwaye siqinisekisa ukuthunyelwa kwempahla kwihlabathi liphela ngexesha elifanelekileyo.
4. Amava eProjekthi yeHlabathi aQinisekisiweyo
Iinqwaba zethu zesinyithi zisetyenziswa kakhulu kubunjineli bezolwandle, uphuhliso lweziseko zophuhliso, iinkqubo zokulawula izikhukula, kunye nokwakhiwa kwemizi-mveliso kulo lonke elaseAsia, eMbindi Mpuma, eAfrika, naseMelika.
5. Umthengisi wesisombululo sentsimbi enye
Ngaphaya kweesheet piles, sikwabonelela ngeepayipi zentsimbi, ii-H beams, izakhiwo zentsimbi, kunye neemveliso ezinxulumene noko, sinikezela ngezisombululo zokuthenga ezidibeneyo kubathengi bamazwe ngamazwe.
UKUPAKISHA NOKUTHUMELA
Iingqumba zesinyithi ziphathwa kwaye zithuthwa ngeendlela ezahlukeneyo ukuze zifikelele kwimeko ekhuselekileyo, ezinzileyo, nengenamonakalo ngexesha lokuthuthwa nokugcinwa.
Iphakheji nganye ibotshelelwe ngokuqinileyo ngeentambo zentsimbi kunye ne-anti-deformation.
Umonakalo, ukufuma, kunye nomhlwa zinokuthintelwa zizigqubuthelo zokukhusela kunye nokugquma okungangeni manzi kusetyenziswa umaleko ngamnye ngexesha lokuthuthwa kolwandle okude.
Ukupakisha okuqhelekileyo kokuthumela ngaphandle kusebenzisa isakhelo sentsimbi esifanelekileyo elwandle okanye ipalethi yomthi, efanelekileyo ekuthunyelweni kwamanye amazwe.
Iinkcukacha zemveliso, ibakala, ubungakanani, kunye nenani lobushushu ziprintiwe ngokucacileyo kwiphakheji nganye ukuze kube lula ukuyiqonda.
Iindlela zokuthumela eziguquguqukayo: Xhasa umthwalo weekhonteyina kunye nokuthunyelwa kweempahla zakho ngobuninzi ukuqinisekisa ukuhanjiswa okukhuselekileyo, okusebenzayo, nokufikelelwa ngexesha elifanelekileyo kumazibuko kwihlabathi liphela. Amaxwebhu okuthumela ngaphandle kunye nolawulo lwezothutho ziyabonelelwa ukuze kube lula urhwebo lwamazwe ngamazwe.
FAQ
Q1: Uqinisekisa njani umgangatho weenqwaba zeeshiti zentsimbi?
A: Silandela ngokungqongqo imigangatho yamazwe ngamazwe efana ne-EN 10025, i-ASTM, kunye ne-JIS. Ibhetshi nganye inikwa iZiqinisekiso zoVavanyo lweMill (MTC), iingxelo zokuhlolwa, kunye nokulandeleka ngokupheleleyo.
Q2: Ndingafumana ubungakanani obulungiselelwe wena okanye amanqanaba entsimbi?
A: Ewe, sixhasa ubungakanani, ubude, kunye neendidi zentsimbi ezenziwe ngokwezifiso ezifana ne-S235, S275, kunye ne-S355 ngokweemfuno zeprojekthi.
Umbuzo 3: Ziqine kangakanani iimfumba zakho zamaphepha ukuze zisetyenziswe emanzini okanye kwisiseko?
A: Iingqumba zethu zamaphepha zenzelwe ukuba zivelise amandla aphezulu kunye nokusebenza kakuhle kokuqhagamshela, zilungele udonga olugcina izinto, amazibuko, ii-cofferdams, kunye nemisebenzi yesiseko esinzulu.
Q4: Ngowuphi ukhuseleko lokulwa nokugqwala olunikezelayo?
A: Sibonelela nge-hot-dip galvanizing, i-epoxy coating, iinkqubo zokupenda, kunye neendlela ze-3PE zokulwa nokugqwala kwiimeko ezahlukeneyo zendalo.
Q5: Lingakanani ixesha lakho lokuhambisa ii-odolo ezininzi?
A: Ixesha eliqhelekileyo lokuvelisa limalunga neentsuku ezili-15 ukuya kwezingama-30 zokusebenza, kuxhomekeke kwiinkcukacha kunye nomthamo we-odolo.












