Isishwankathelo seMveliso
Le ngxubevange ikwaziwa ngokuba yi-AISI 660, iBanga 660, i-ASTM A453 iBanga 660, kwaye isetyenziswa kakhulu kwizicelo zokubopha kunye neziqhoboshi ezishushu kakhulu apho kufuneka amandla kunye nokumelana ne-oxidation. I-Inconel 660 yi-alloy yokuqinisa imvula efumana amandla angaqhelekanga ngonyango lobushushu olulawulwayo. Xa kuthelekiswa neentsimbi eziqinileyo ezisemgangathweni, iBanga 660 inika amandla aphezulu okuqhekeka kunye nokumelana ne-oxidation ephezulu kumaqondo obushushu aphezulu, okwenza ukuba ibe yinto eqhelekileyo kwizixhobo zeenjini zejethi, iziqhoboshi zeturbine, kunye nezicelo zeemoto ezisebenzayo kakhulu.
Yintoni i-Inconel 660?
I-Inconel 660 yi-superalloy ye-nickel-chromium esekwe kwisinyithi eqiniswa kukuna kwe-γ' [Ni₃(Al,Ti)] phase ngexesha lonyango lobushushu lokwaluphala. Le ngxubevange iqulethe malunga ne-24-27% ye-nickel, i-13.5-16% ye-chromium, kunye nokongezwa kwe-titanium (1.9-2.35%), i-aluminium (0.10-0.35%), i-molybdenum (1.0-1.5%), kunye ne-vanadium (0.10-0.50%). Yenzelwe ukusetyenziswa okufuna amandla aphezulu ukuya kuthi ga kwi-700°C kunye nokumelana okuhle ne-oxidation kunye nokugqwala.
Ibanga lama-660 laziwa ngezi zinto zilandelayo:
- Amandla obushushu aphezuluukuya kuthi ga kwi-704°C (1300°F)
- Ukumelana okugqwesileyo kokuqhekeka nokuqhekekakumaqondo obushushu aphezulu
- Imvula iyaqinangokusebenzisa unyango oluqhelekileyo lokuguga kobushushu
- Ukumelana kakuhle ne-oxidationukuya kuthi ga kwi-815°C
- Ukuchasa ukuphumla koxinzelelokumaqondo obushushu aphezulu
- Ayinamagnethiiipropati
- Ukulungiswa kakuhlekunye nokusebenza ngomatshini
Ukwenziwa kweeKhemikhali
| I-elementi | I-UNS S66286 (ASTM) | I-SUH660 (JIS) | I-GH2132 (GB) | Indima |
| I-Nickel (Ni) | 24.0 – 27.0 | 24.0 – 27.0 | 24.0 – 27.0 | Isiqinisi se-Austenite, ukumelana nokugqwala |
| I-Chromium (Cr) | 13.5 – 16.0 | 13.5 – 16.0 | 13.5 – 16.0 | Ukumelana ne-oxidation, i-carbide yangaphambili |
| I-Molybdenum (Mo) | 1.0 – 1.5 | 1.0 – 1.5 | 1.0 – 1.5 | Ukuqinisa isisombululo esiqinileyo |
| I-Titanium (iTi) | 1.90 – 2.35 | 1.90 – 2.35 | 1.90 – 2.35 | imvula ka-γ, ukuqina kobudala |
| I-Aluminiyam (Al) | 0.10 – 0.35 | ≤ 0.35 | ≤ 0.35 | imvula engu-γ' |
| I-Vanadium (V) | 0.10 – 0.50 | 0.10 – 0.50 | 0.10 – 0.50 | Ukucoca iingqolowa, i-carbide yangaphambili |
| IBoron (B) | 0.003 – 0.010 | 0.001 – 0.010 | 0.001 – 0.010 | Ukuqinisa imida yeenkozo |
| ICobalt (iNkampani) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | Into eseleyo |
| Intsimbi (Fe) | Ibhalansi | Ibhalansi | Ibhalansi | Isiseko sento |
| Ikhabhoni (C) | ≤ 0.08 | ≤ 0.08 | ≤ 0.08 | I-Carbide yangaphambili |
| I-Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | I-Deoxidizer |
| IManganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | I-Deoxidizer |
| I-Phosphorus (P) | ≤ 0.025 | ≤ 0.040 | ≤ 0.030 | Ukungcola |
| I-Sulfur (S) | ≤ 0.025 | ≤ 0.030 | ≤ 0.020 | Ukungcola |
Iipropati zoomatshini
Imeko eyongeziweyo (Isisombululo esinyangiweyo)
| Ipropati | I-ASTM A453 Ibanga 660 |
| Tensile strength | ≤ 724 MPa (105 ksi) |
| Ukwandiswa | ≥ 25% |
| Ukuqina | ≤ 91 HRB |
Imeko Yokwaluphala (Ukuna Kwemvula Okuqinileyo)
| Ipropati | I-ASTM A453 Ibanga 660 | Okuqhelekileyo Okuphunyeziweyo |
| Tensile strength | ≥ 965 MPa (140 ksi) | 1,000 – 1,100 MPa |
| Amandla okuVuna (i-0.2% ye-Offset) | ≥ 655 MPa (95 ksi) | 700 – 800 MPa |
| Ukwandiswa | ≥ 15% | 18 – 25% |
| Ukuqina | 24 - 35 HRC | 28 – 32 HRC |
| Amandla okuhamba (650°C, 100h) | ≈ 240 MPa | |
| Amandla okuhamba (700°C, 100h) | ≈ 210 MPa |
Iipropati Zomzimba
| Ipropati | Ixabiso |
| Uxinano | 7.95 g/cm³ |
| Uluhlu lokunyibilika | 1371 – 1427°C |
| Ukuqhuba kweThermal | 15.0 W/m·K kwi-150°C |
| I-Coefficient yokwandisa ubushushu (20-100°C) | 16.8 × 10⁻⁶/°C |
| Imodulus ye-Elastic | 201 GPa |
| Ukuvumeleka kweMagnetic | Ayinamagnethi |
Iingenelo eziphambili ze-Inconel 660
Amandla obushushu aphezulu– I-Inconel 660 igcina amandla aphezulu okuxinana, ukudinwa, kunye nokuqhekeka ukuya kuthi ga kwi-704°C. Indlela yokuqinisa imvula ye-γ' inika amandla aphezulu obushushu obuphezulu xa kuthelekiswa neentsimbi eziqinileyo ze-austenitic stainless. I-alloy isetyenziswa rhoqo kwiibholithi ze-turbine kunye nezibophelelo apho ukumelana nokuphumla kubalulekile.
Ukumelana Okugqwesileyo Kokuqhekeka Komkhenkce– Le alloy ibonakalisa ukumelana okubalaseleyo kokuqhekeka xa kushushu kakhulu. Ubomi bokuqhekeka kokuqhekeka kwi-650°C budlula iiyure ezili-1,000 phantsi koxinzelelo oluphakathi, nto leyo eyenza ukuba ibe yinto ethembekileyo kwizicelo zenkonzo yobushushu obuphezulu bexesha elide.
Ukumelana kakuhle nokugqwala kunye ne-Oxidation– Ngomxholo we-chromium oyi-13.5-16%, i-Inconel 660 inika ukumelana okuhle ne-oxidation, i-scaling, kunye ne-corrosion yobushushu obuphezulu. I-alloy isebenza kakuhle kwiindawo ezi-oxidating ukuya kuthi ga kwi-815°C kwaye iyamelana neendlela ezahlukeneyo zokubola.
Ukuna kwemvula okuqinileyo– I-Inconel 660 inokomelezwa yimvula ngonyango lobushushu lokwaluphala. Umjikelo oqhelekileyo wokwaluphala (675-705°C, iiyure ezili-12-16) uphuhlisa iipropati ezifanelekileyo zoomatshini kwaye ubonelela ngokumelana okuhle koxinzelelo, nto leyo ibalulekileyo ekusebenziseni iibholti.
Ukumelana nokudinwa okuhle– Le ngxubevange inika ukumelana okuhle nokudinwa kunye nokudinwa kobushushu, nto leyo eyenza ukuba ifaneleke kwiindawo ezilawulwa ngumthwalo ojikelezayo kumaqondo obushushu aphezulu. Oku kubaluleke kakhulu kwiindawo ezisetyenziswa kwi-turbine kunye neendawo ze-injini.
Ukusebenza kakuhle kunye noomatshini– I-Inconel 660 inomatshini ongcono kunezinye ii-superalloys ezininzi. Ingaxutywa lula, ishushu, kwaye ibanda. I-alloy inokuxutywa kusetyenziswa i-TIG, i-MIG, kunye ne-resistance welding ngeentsimbi ezifanelekileyo.
Ibanga 660 vs. Inconel 718: Ukuthelekisa
| Ipropati | I-Inconel 660 (iBanga 660) | Inconel 718 |
| Isiseko se-Element | I-iron (ibhalansi) ene-24-27% Ni | I-Nickel (50-55%) kunye ne-18-20% ye-Fe |
| Isigaba Sokuqinisa | γ' (Ni₃(Al,Ti)) | γ' (Ni₃Al) + γ'' (Ni₃Nb) |
| Amandla okuThamba (okwaluphala) | ≥ 965 MPa | ≥ 1,240 MPa |
| Ubungakanani bobushushu | Ukuya kuthi ga kwi-704°C | Ukuya kuthi ga kwi-700°C |
| Izicelo eziphambili | Iibholithi zeTurbine, izibophelelo, izikhonkwane, izinto zenjini yejethi | Iidiski zeTurbine, iimoto zerokethi, ioyile kunye negesi yeHPHT |
| Ixabiso | Ixabiso eliphantsi ngakumbi | Phezulu |
Ukukhetha nini iBanga 660:Iinkqubo ezifuna ukubotshwa nokufakelwa okushushu kakhulu, izinto zenjini yejethi, iibholithi zeturbine, kunye neemoto ezisebenza kakuhle apho ixabiso lixhomekeke khona kwaye kufuneka amandla aphezulu ukuya kuthi ga kwi-700°C.
Ungayikhetha nini i-Inconel 718:Usetyenziso olufuna amandla aphezulu obushushu obuphezulu, ukuqina kokuqhekeka, kunye nokumelana nokuqhekeka kumaqondo obushushu afikelela kwi-700°C apho ixabiso lincinci.
Unyango lobushushu lwe-Inconel 660
I-Inconel 660 yi-alloy eqina ngokukhawuleza edinga unyango oluthile lobushushu ukuze kufezekiswe iipropati ezifanelekileyo zoomatshini:
Isisombululo sokuNxungulwa (Imeko A):
- Ubushushu:980 – 1010°C (1800 – 1850°F)
- Ixesha lokuntywila:Iyure e-1
- Ukupholisa:Ukupholisa ngokukhawuleza (ukucima ioyile okanye amanzi)
- Injongo:Nyibilikisa zonke iiprecipitates, ufumane i-austenite yesigaba esinye
- Isiphumo:Ithambile, iyasebenza, ilungele ukwenziwa kunye nokufakelwa
Ukuqina kwemvula (Ukwaluphala – Imeko B):
- Ubushushu:675 – 705°C (1250 – 1300°F)
- Ixesha lokuntywila:Iiyure ezili-12 ukuya kwezili-16
- Ukupholisa:Umoya opholileyo
- Injongo:IFomu i-Ni₃(Al,Ti) γ' ihambisa amanzi okomeleza
- Isiphumo:Amandla aphezulu kunye nokumelana nokuqhekeka
Ukuguga Kabini (Enye indlela):
- Inqanaba lokuQala: 705°C kangangeeyure ezili-16, i-furnace iphole ukuya kuma-620°C
- Inqanaba lesibini: 620°C kangangeeyure ezili-16, umoya upholile
- Injongo:Lungiselela ukumelana noxinzelelo lokuphumla kwizicelo ze-bolting
Iifom zeMveliso ezifumanekayo ezivela kwiWomic Steel
Umbhobho ongenamthungo kunye neThubhu engenamthungo
- Ububanzi obungaphandle:6mm – 200mm
- Ubukhulu bodonga:1mm – 25mm
- Ubude:Ukuya kuthi ga kwi-12m
- Imigangatho:I-ASTM B639, i-ASTM B983, i-AMS 5731, i-AMS 5732, i-AMS 5737, i-AMS 5895
- Izicelo:Iipayipi zenkqubo yobushushu obuphezulu, iityhubhu zokutshintsha ubushushu, imigca yezixhobo, iityhubhu zeenqwelo moya
- Amagama angundoqo:Umbhobho ongenamthungo we-Inconel 660, ityhubhu yeBakala 660, umbhobho we-UNS S66286, ityhubhu ye-SUH660, umbhobho ongenamthungo we-1.4980
Ibha yentsimbi (Engqukuva, Eyisikwere, Ethe tyaba, Enehektha)
- Ububanzi:6mm – 300mm
- Umphezulu:Ijijekile ishushu, Igqamile (itsalwe kubanda), Iphantsi, Ijikile
- Imigangatho:I-ASTM A453, i-ASTM B639, i-AMS 5731, i-AMS 5732, i-AMS 5734, i-AMS 5737
- Izicelo:Iibholithi zeTurbine, izibophelelo, izikhonkwane, imiphini, iziqu zevalvu, isitokhwe somatshini wokugaya
- Amagama angundoqo:Ibha engqukuva ye-Inconel 660, ibha yeBanga 660, intonga ye-SUH660, i-ASTM A453 yeBanga 660, izibophelelo zobushushu obuphezulu
Ipleyiti yentsimbi kunye nephepha
- Ubukhulu:1mm – 100mm
- Ububanzi:Ukuya kuthi ga kwi-2000mm
- Imigangatho:AMS 5525, AMS 5858
- Izicelo:Izixhobo zesitya soxinzelelo, iindawo zesakhiwo, iiblanks zeflange
- Amagama angundoqo:Ipleyiti ye-Inconel 660, ishiti yebanga le-660, ipleyiti ye-alloy, ipleyiti yobushushu obuphezulu
Ikhoyili yentsimbi kunye ne-Strip
- Ubukhulu:0.5mm – 4.0mm
- Ububanzi:10mm – 1000mm
- Imigangatho:I-AMS 5525
- Izicelo:Izixhobo ezenziweyo, iintsimbi, izitampu
- Amagama angundoqo:Ikhoyili ye-Inconel 660, umcu, umcu wobushushu obuphezulu
Iiflanges kunye neZilinganisi
- Iintlobo:Intamo eWeldiweyo, etyibilikayo, eyimfama, eWeldiweyo yeSocket, efakwe imisonto
- Ubungakanani:1/2" – 24"
- Uvavanyo loxinzelelo:Iklasi ye-150 - Iklasi yama-2500
- Imigangatho:I-ASTM A453, i-ASME B16.5
- Amagama angundoqo:Iiflange ze-Inconel 660, izixhobo zeBanga 660
Izinto zokufunxa
- Iintlobo:Iiringi, iidiski, imiphini, imizimba yevalvu, iijometri ezenziwe ngokwezifiso
- Ubunzima:Ukuya kuthi ga kwi-3,000kg ngesiqwenga ngasinye
- Imigangatho:I-ASTM A453, AMS 5731
- Amagama angundoqo:I-Inconel 660 forging, iringi eyenziweyo, i-turbine component forging
Izinto zokubopha (iiBolts, iiNuts, iiStuds)
- Iintlobo:Iibholithi zeHex, Izikrufu zentloko zeSocket, Iibholithi zeStud, Iintonga ezinemisonto, Amantongomane, IiWashers
- Ubungakanani:M2 – M100, 1/4" – 4"
- Imigangatho:I-ASTM A453 Ibanga 660, ASTM B637
- Izicelo:Iibholithi zeTurbine, uqhagamshelo lweflange olushushu kakhulu, izibophelelo zesakhiwo
- Amagama angundoqo:Iibholiti ze-Inconel 660, iibholiti ze-stud zeBakala 660, izibophelelo zobushushu obuphezulu, iibholiti ze-turbine
Iivalvu zeBanga lama-660
- Iintlobo:Iivalvu zebhola, iivalvu zesango, iivalvu zeglobe, iivalvu zokujonga
- Ubungakanani:1/2" – 12"
- Uvavanyo loxinzelelo:Iklasi ye-150 - Iklasi yama-2500
- Uluhlu lobushushu:-196°C ukuya ku +704°C
- Imigangatho yoYilo:I-API 608, i-API 6D, i-ASME B16.34
- Ukusebenza:Isandla, i-Pneumatic, umbane
- Izicelo:Ukwahlulwa kwenkqubo yobushushu obuphezulu, imigca yomphunga we-turbine, ulawulo lwe-turbine yegesi
Usetyenziso lwe-Inconel 660
Inqwelo-moya– I-Inconel 660 isetyenziswa kakhulu kwiinxalenye ze-jet engine kunye ne-gas turbine kuquka ii-turbine bolts, ii-compressor disks, ii-turbine casings, ii-afterburner parts, ii-thrust reversers, kunye ne-injini mounting hardware. Ukudibanisa kwayo amandla obushushu obuphezulu, ukumelana nokudinwa, kunye nokumelana ne-oxidation kwenza ukuba ilungele ukusetyenziswa kweenqwelo-moya ezibalulekileyo. I-alloy yinto eqhelekileyo kwii-jet engine bolts kunye nee-fasteners ezisebenza kumaqondo obushushu afikelela kwi-700°C.
Ukuveliswa koMbane weTurbine yeGesi– Le ngxubevange isetyenziselwa iibholithi zeturbine, iistuds, kunye nezibophelelo kwiiturbine zegesi zoshishino, iiturbine zomphunga, kunye nezityalo zamandla ezidibeneyo. Ukumelana kwayo nokukhululeka koxinzelelo kumaqondo obushushu aphezulu kuqinisekisa uqhagamshelo oluthembekileyo lweebholithi ngobomi benkonzo ende.
Iimoto– I-Inconel 660 isetyenziswa kwiindawo zokugcina ii-turbocharger, kwii-exhaust manifolds, kwiinxalenye zeenjini zedizili, nakwii-fasteners zeemoto ezisebenza kakuhle. Ukukwazi kwayo ukumelana namaqondo obushushu egesi yokukhupha umoya kunye nokujikeleza kobushushu kuyenza ifaneleke kwiinjini zanamhlanje ezisebenza kakuhle nezisebenza kakuhle.
Amandla eNyukliya– Le ngxube isetyenziswa kwizixhobo ze-reactor zenyukliya, kwi-core internal, kwiindlela ze-control rod, nakwi-fasteners ezishushu kakhulu ezifuna ukuthembeka kwexesha elide kunye nokumelana nokukhanyiswa yi-neutron.
Ukucubungula iPetrochemical– I-Inconel 660 isetyenziswa kwii-reactors zeekhemikhali ezishushu kakhulu, iityhubhu zokulungisa, izinto ze-furnace, kunye neepayipi zenkqubo ezifuna amandla kunye nokumelana ne-oxidation kumaqondo obushushu aphezulu.
Ukubethela okushushu okuphezulu– Ibanga 660 lelona sixhobo siqhelekileyo sokusetyenziswa kweebholti ezisebenzisa ubushushu obuphezulu. Iibholti kunye nee-stud ze-ASTM A453 zebanga 660 zichazwe ngokubanzi kwiiflange zesitya soxinzelelo, ii-casing ze-turbine, kunye noqhagamshelo lweepayipi ezisebenzisa ubushushu obuphezulu ezifuna ukumelana nokuqhekeka kunye nokuphumla koxinzelelo.
Imigangatho kunye neenkcukacha
| Umgangatho | Inkcazo |
| Ukutyunjwa kwe-UNS | S66286 |
| Inombolo ye-Werkstoff | 1.4980 |
| I-AISI/SAE | 660 |
| I-ASTM A453 | Iinkcukacha eziqhelekileyo ze-bolting enobushushu obuphezulu |
| I-ASTM B639 | Ibha/intonga ye-alloy enobushushu obuphezulu |
| I-AMS 5525 | Ipleyiti/iphepha/umcu |
| I-AMS 5731 | Ibha, ucingo, izinto zokugquma |
| I-AMS 5732 | Ibha, ucingo, izinto zokugquma |
| I-AMS 5734 | Ibha, ucingo, izinto zokugquma |
| I-AMS 5737 | Umbhobho kunye netyhubhu |
| I-AMS 5895 | Ibha, ucingo, izinto zokugquma |
| I-JIS | I-SUH660 |
| GB/T | GH2132 |
| yaseYurophu | 1.4980 / X6NiCrTiMoV25-15-2 |
| I-ISO | X6NiCrTiMoV25-15-2 |
Imibuzo ebuzwa qho
Q: Yintoni i-Inconel 660?
A: I-Inconel 660 (UNS S66286 / SUH660 / GH2132) yi-superalloy esekwe kwi-precipitation-hardening superalloy esekwe kwi-iron enamandla aphezulu obushushu afikelela kwi-704°C. Iqiniswa yi-γ' precipitation ngonyango lobushushu oludala kwaye isetyenziswa kakhulu kwiibholithi ze-turbine, izibophelelo, kunye nezixhobo ze-jet engine.
Q: Yintoni umahluko phakathi kweBanga 660 kunye ne-Inconel 718?
A: I-Inconel 660 isekelwe kwisinyithi (ene-24-27% Ni, ibhalansi ye-Fe) inamandla okutsalwa ≥ 965 MPa, ngelixa i-Inconel 718 isekelwe kwi-nickel (50-55% Ni) inamandla okutsalwa ≥ 1,240 MPa. Ibanga 660 lingabizi kakhulu kwaye lisetyenziswa kakhulu ekutsalweni; i-Inconel 718 isetyenziselwa ukusetyenziswa kwamandla aphezulu.
Q: Ingakanani iqondo lobushushu eliphezulu lenkonzo ye-Inconel 660?
A: I-Inconel 660 inikwe umlinganiselo wenkonzo eqhubekayo ukuya kuthi ga kwi-704°C (1300°F). Ukumelana ne-oxidation, uhambo lwexesha elifutshane ukuya kuthi ga kwi-815°C (1500°F) lunokwenzeka. Amandla okuhamba ancipha kakhulu ngaphezu kwe-700°C.
Q: Ingaba i-Inconel 660 iyakwazi ukunyibilika ngokulula?
A: Ewe, i-Inconel 660 inokudityaniswa kusetyenziswa iinkqubo ze-TIG, MIG, kunye ne-resistance welding. Nangona kunjalo, ukudityaniswa kufuna ulawulo olucokisekileyo lokufakwa kobushushu kunye nokukhetha isinyithi sokuzalisa ukuze kuthintelwe ukuqhekeka okushushu. Ukutsalwa kwesisombululo emva kokudityaniswa nokuguga kunokufuneka ukuze kubuyiselwe iimpawu zoomatshini.
Q: Zithini ii-Inconel 660 ezilingana ne-China?
A: Ixabiso elilingana ne-Inconel 660 yaseTshayina yi-GH2132 (高温合金) kwizicelo zeenqwelo-moya kunye nobushushu obuphezulu, kwaye ixabiso elilinganayo nelaseJapan yi-SUH660.
Q: Zeziphi iifom zemveliso ezikhoyo ze-Inconel 660?
A: I-Womic Steel ibonelela nge-Inconel 660 ngepayipi engenamthungo, ipayipi edibeneyo, ibha yentsimbi, ipleyiti yentsimbi, ikhoyili yentsimbi, umcu, iiflanges, izixhobo, izinto zokugquma, ucingo, izibophelelo, kunye neevalvu. Iinkcukacha ezipheleleyo zemveliso kunye noluhlu lobungakanani zidweliswe kwicandelo lokufumaneka kwemveliso.
Q: Ngaba i-Inconel 660 ifuna unyango lobushushu?
A: Ewe. I-Inconel 660 ifuna i-solution annealing (980-1010°C) ilandelwe kukuguga (675-705°C kangangeeyure ezili-12-16) ukuze kufumaneke iipropati ezifanelekileyo zoomatshini. Unyango lokuguga lukhawulezisa isigaba se-γ' sokuqina.
Qhagamshelana neWomic Steel
Iwebhusayithi: www.womicsteel.com
I-imeyile: sales@womicsteel.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
UJack: +86 18390957568
I-Womic Steel – Iqabane lakho elithembekileyo le-Inconel 660 / Grade 660 (UNS S66286, SUH660, GH2132) umbhobho ongenamthungo, intsimbi yentsimbi, ipleyiti yentsimbi, ikhoyili yentsimbi, iiflanges, izixhobo, izinto zokugquma, kunye neziqhoboshelo zeenqwelo-moya, i-turbine yegesi, ukuveliswa kwamandla, kunye nezicelo zokubopha ezishushu kakhulu kwihlabathi liphela. Ukulandelela okupheleleyo, isiqinisekiso soluntu lokwahlulwahlulwa, kunye namaxwebhu e-EN 10204 Type 3.1/3.2 ayafumaneka.










