Lo mhlahlandlela uhlola isikhumba senkomo esigcwele okusanhlamvu kubathengi ngokuqhathanisa ukusebenza, ukubukeka, izindleko, kanye nokukhiqizwa. Ukukhetha okusebenzayo kuncike emthwalweni olindelekile, ukuguguleka, ukunakekelwa, ukuqeda, izidingo zokuthobela imithetho, isikhundla sentengo, kanye nendlela izinto ezisebenzisana ngayo nemithungo, imiphetho, ihadiwe, kanye nolwelwesi. Qopha ibanga, ukujiya, umbala, ukuqeda kwendawo, ingemuva, kanye nezidingo zokuhlola ku-BOM noma incazelo yomkhiqizo. Qinisekisa izincazelo zomhlinzeki ngamadokhumenti amanje, ama-swatches avunyiwe, kanye nokuhlolwa ngokomzimba ngaphambi kokukhiqizwa ngobuningi.
Inkomo Egcwele Okusanhlamvu
Incazelo kanye nokubaluleka kwemboni
Isikhumba senkomo esigcwele yikhwalithi ephezulu kakhulu, esitholakala ongqimbeni lwangaphandle lwesikhumba senkomo olugcina ubuso bemvelo bokuqala. Sibonakala ngokuqedwa okuncane, okuvumela ukuthungwa okungokwemvelo, ama-pores, kanye nezimpawu ukuthi kuhlale kubonakala. Le nto iyaziswa ngokuqina kwayo, ukukwazi ukuphefumula, kanye nekhono lokuthuthukisa i-patina ecebile ngokuhamba kwesikhathi. Ngokungafani nezikhumba ezilungisiwe noma ezihlukanisiwe, okusanhlamvu okuphelele akudingi ukugcotshwa noma ukugcotshwa okususa ungqimba lwezinhlamvu, okwenza kube uhlobo lwesikhumba oluqine kakhulu nolwemvelo olutholakalayo ezimpahleni zekhwalithi ephezulu njengezikhwama zezandla zikanokusho, i-upholstery ephezulu, kanye nezicathulo.
Kusukela embonweni wokuthengwa kwe-B2B , ukuqonda isikhumba senkomo esigcwele kubalulekile ekutholeni ochwepheshe embonini yemfashini, yezimoto, kanye neyefenisha. Ikhwalithi yesikhumba ithinta ngqo inani lomkhiqizo wokugcina, futhi ukukhethwa kwaso kuhilela ukuhlolwa kobuchwepheshe ngale kokuhlola okubonakalayo okulula. Abathengi kumele bacabangele imvelaphi yokufihla, izindlela zokushiswa kwesikhumba, kanye nezinhlelo zokulinganisa ukuqinisekisa ukutholakala okuqhubekayo okuhlangabezana nemininingwane ye-OEM. Ngokusho kwe- Leather Working Group (LWG) , ukunamathela ezindinganisweni zemvelo nekhwalithi kuyisici esibalulekile sokuhlukanisa izicubu zesikhumba ezikhiqiza isikhumba esigcwele.
Ukuhlelwa Nokubekwa Kwezikhumba Ezisezingeni Eliphezulu
Ukuze uthole isiqondiso sabathengi esihlobene, buyekeza i- Genuine Leather vs Full Grain Leather Handbags: Umehluko Oyinhloko kanye nemininingwane, ubufakazi, kanye nezinqubo zesinqumo kulesi sigaba.
Imboni yesikhumba ilandela uhlelo lokulinganisa olwamukelwa kabanzi olubeka isikhumba ezingeni eliphezulu ngekhwalithi kanye nokucubungula. Okusanhlamvu okuphelele kusezingeni eliphezulu, kulandelwe okusanhlamvu okuphezulu, isikhumba sangempela, kanye nesikhumba esihlanganisiwe. Ithebula elingezansi liveza ukuhlaziywa okuqhathanisayo okwenzelwe abahloli be-B2B.
| izimfanelo | Okusanhlamvu Okugcwele | Okusanhlamvu Okuphezulu | Isikhumba sangempela | Isikhumba Esihlanganisiwe |
|---|---|---|---|---|
| Ubuso Bezinhlamvu | Okwemvelo, okungashintshiwe | Okusanhlamvu okulungisiwe okusantiwe | Ihlukaniswe noma inombala omningi | I-fibre eyakhiwe kabusha |
| ukuqina | Amandla aphezulu kakhulu okudonseka nokudabuka | Amandla amahle, angaphefumuli kahle | Okumaphakathi, kungahlukanisa | Iphansi, ithambekele ekuqhekekeni |
| Ukuqeda | I-Aniline noma i-Semi-aniline | Ukugqoka okunombala | Ukumboza okunzima noma ukugqokisa | I-adhesive bonding |
| Ukusetshenziswa Okujwayelekile | Izimpahla zikanokusho, ifenisha yekhwalithi ephezulu | Izicathulo eziphakathi nendawo, izimoto | Amabhande, izinto zokukhangisa | Izesekeli ezingabizi kakhulu |
| I-Cost Factor | Ephakeme kakhulu | Medium | ongaphakeme | Phansi kakhulu |
Kubathengi be-B2B, ukukhetha phakathi kokusanhlamvu okuphelele nokusanhlamvu okuphezulu kuvame ukuncika ezindleko kanye nokuthembeka. Okusanhlamvu okuphelele kubiza kakhulu kodwa kunikeza ukuguga namandla okungenakuqhathaniswa, okwenza kube yinto ekhethwayo yemikhiqizo ethengiswa njengekhwalithi yefa.
Ubuchwepheshe Bokushiswa Kwesikhumba Nokuqedwa
Ukuguqula isikhumba senkomo esiluhlaza sibe isikhumba esigcwele okusanhlamvu kuhilela ukushiswa kwesikhumba ngokucophelela kanye nokuqedwa okulondoloza ungqimba lokusanhlamvu. Izindlela ezimbili eziyinhloko zokushiswa kwesikhumba ukushiswa kwesikhumba nge-chrome kanye nokushiswa kwesikhumba ngemifino.
- I-Chrome Tanning: Isebenzisa usawoti we-chromium, ikhiqiza isikhumba esithambile, esithambile, futhi esingangeni manzi. Iveza umbala ohambisanayo futhi ishesha ukucutshungulwa (izinsuku ezingu-1-2). Ivame ukusetshenziswa ezimotweni nasezinhlelweni eziningi zemfashini.
- Ukushuka Kwemifino: Isebenzisa ama-tannins emvelo avela emagxolweni noma emaqabungeni, okuholela esikhumbeni esiqinile esidala umbala omuhle ngokuhamba kwesikhathi. Inobungani nemvelo kodwa ithatha amasonto ukunsunduza futhi izwa kakhulu amabala amanzi.
Izinketho zokuqeda okusanhlamvu okugcwele ngokuvamile yi -aniline (udayi ocacile ongenawo umphezulu) noma i-semi-aniline (umbala okhanyayo okhanyayo wokuvikela). Lokhu kwelashwa okuncane kuqinisekisa ukuthi isikhumba sihlala siphefumula kahle ngenkathi kuthuthukiswa ubuhle.
Ekutholeni i-B2B, indlela yokushiswa kwesikhumba ithinta izikhathi zokulethwa kanye nezici zokusebenza. Amandla enkampani yokushiswa kwesikhumba kokubili ukushiswa kwesikhumba nge-chrome kanye nemifino abonisa ukuguquguquka; abathengi kufanele bavumelanise ukukhetha kokushiswa kwesikhumba nezidingo zokusebenza komkhiqizo kanye nezimiso zomkhiqizo.
Ukucaciswa Kwezobuchwepheshe Nezinhlaka Zokusebenza
Uma kucaciswa isikhumba senkomo esigcwele ukuze kuthengwe izimboni, lezi zindlela zobuchwepheshe ezilandelayo zibalulekile. Ithebula elingezansi lifingqa izindlela ezibalulekile ezivame ukuhlolwa ezindaweni zelebhu ngokwezindinganiso ze-ISO.
| Ipharamitha | Ibanga Elijwayelekile / Elijwayelekile | Ukubaluleka kwe-B2B |
|---|---|---|
| Ubukhulu | 0.8 – 3.0 mm (ngokuvamile 1.2-1.6 mm ezikhwameni) | Inquma ukuqina nokufaneleka kohlobo lomkhiqizo; kumele ihambisane kuyo yonke inqwaba. |
| Amandla Amandla | ≥ 15 N/mm² (ISO 3376) | Kuqinisekisa ukuthi isikhumba singamelana nokucindezeleka ngaphandle kokudabula; kubalulekile ezintweni ezithwala imithwalo. |
| Ukunwebeka ngesikhathi sekhefu | 40-80% (kuye ngokuthi i-soak ishiswa kanjani) | Kubonisa ukuguquguquka; kubalulekile ezicathulweni zezicathulo kanye nasezindlini zokugqoka. |
| Umbala ongaguquki ukuze Uhlikihle | Ibanga ≥ 4 (elomile/elimanzi, ISO 11640) | Kuvimbela ukudluliselwa kodayi ezingutsheni; kuyadingeka ezikhumbeni zezingubo nezefenisha. |
| Qedela Ukunamathela | ≥ 2.5 N/10 mm (ISO 11644) | Iqinisekisa ukuthi ukugqoka (uma kukhona) akuqhekeki; kubalulekile ukuze kubonakale kahle. |
| I-Water Vapor Permeability | > 1.5 mg/cm²·h | Kuhlobene nokuphefumula kalula; isihluthulelo sezicathulo kanye nenduduzo yokuhlala. |
Abathengi be-B2B kufanele bacele ishidi ledatha lobuchwepheshe (i-TDS) elibonisa lezi zakhiwo zohlobo oluthile lokuqeda kanye nolwesikhumba. Ukufaka lezi zincazelo ku-oda lokuthenga kuvimbela izingxabano zekhwalithi futhi kuqinisekisa ukuthi isikhumba sihlangabezana nezidingo zokusetshenziswa kokugcina.
Izinqubo Zokuhlonza Ikhwalithi Nokuhlola
Ukuhlonza okuthembekile kwesikhumba senkomo esigcwele kuyikhono elibalulekile emaqenjini okuthenga. Izinkomba ezilandelayo zisiza ukuhlukanisa nesikhumba esilingisiwe noma esiphansi:
- Ukungaguquguquki Kokusanhlamvu: Okusanhlamvu okuphelele kubonisa izikhala zemvelo, ezingajwayelekile kanye nokushintshashintsha okuncane kobuso (izibazi, ukulunywa yizinambuzane) okungafani njengamaphethini aqoshiwe. Uma isikhumba sigobile, okusanhlamvu kufanele kushwabane kahle, kungaqhekeki.
- Umuzwa Wobuso: Inokufudumala okuthambile, okuthintayo, ngokungafani nomuzwa obandayo, ofana nowepulasitiki wesikhumba esenziwe noma esimbozwe kakhulu.
- Ukuhlola Ukumuncwa Amanzi: Ithonsi lamanzi ezinhlamvini ezigcwele ezingakaqedwa lizongena futhi lenze indawo ibe mnyama ekuqaleni, kuyilapho izikhumba ezimboziwe noma ezenziwe ngokwenziwa zixosha amanzi.
- Ukuhlolwa Kokushiswa (Okubhubhisayo)Nakuba kungenzeki ngaso sonke isikhathi, ingxenye encane yoboya obugcwele iyasha kancane, inuka njengezinwele ezishile, futhi ishiye insalela engafani nepulasitiki.
Ngesikhathi sokuhlolwa okungenayo, ukusampula kwe-AQL (Acceptable Quality Level) kufanele kugxile ezifweni ezibonakalayo (izibazi, imithambo yegazi) kanye nokulinganisa ukujiya nge-gauge. Uhlu lokuhlola oluphelele lwe-B2B luhlanganisa: ukuhlolwa kokuqina kwezinhlamvu, ukufanisa imibala namasampula amakhulu, kanye nokuhlolwa kwe-flex ku-Bally flexometer yezinhlobo ezimboziwe.
Amaphutha Ajwayelekile Nezixazululo Zokuvimbela
Iqoqo ngalinye lesikhumba senkomo esigcwele liqukethe amaphutha angokwemvelo; ukuwaphatha kuyisihluthulelo sokwandisa isivuno kanye nenzuzo. Ithebula elingezansi lichaza amaphutha avamile ngezimbangela zawo eziyinhloko kanye nezixazululo ezisebenzayo zabathengi kanye namafektri.
| I-Pain Point | Imbangela | Isixazululo Esisebenzayo |
|---|---|---|
| Ukuxega kwezinhlamvu (ukufaka amapayipi) | Ubudala bezilwane noma izici zofuzo; ukucutshungulwa okungafanele kwendlu yokubeka imisebe | Cacisa isigaba sokuqina okusanhlamvu okuncane (isb., isigaba 2 noma 3) esinqunyiwe; sebenzisa izindawo ezikhululekile zamaphaneli afihliwe |
| Izibazi zemvelo eziningi ngokweqile | Izimpawu zomkhiqizo, ukulimala kwentambo ehlabayo, noma ukulunywa yizinambuzane esilwaneni | Xoxani ngephesenti lesabelo sesici ngesikhumba ngasinye; sebenzisa isikhumba esinamanxeba emikhiqizweni enobuhle obungacacile |
| Ukungena kodayi okungalingani | Isikhathi esingaphansi kwesigubhu noma udayi osezingeni eliphansi | Yenza ukuhlolwa kwesikhumba esiyinhloko; dinga isitifiketi sokufaka umbala ukuze uqedele i-aniline |
| Ukufaniswa okungewona umbala phakathi kwamaqoqo | Ukwehluka ekulawuleni inqubo yokushiswa kwesikhumba noma ukufihla ukumuncwa | Hlela isampula yombala oyingcweti enokubekezelelana kwe-delta-E; cela indawo efanayo yodayi kuma-oda amakhulu |
| Ukupenda okuluhlaza okwesibhakabhaka noma isikhunta | Ukugcinwa okungafanele noma umswakama wokuthutha | Hlola lapho ufika ukuthi unamanzi (kufanele kube ngu-12-14%); sebenzisa amashidi okumunca umswakama emaphaketheni |
Ukuxhumana okusebenzayo kwalezi zinhlaka zekhwalithi nezindawo zokuthambisa isikhumba kunciphisa amazinga okwenqatshwa futhi kuqinise ubudlelwano babahlinzeki.
Ukuqonda Kokuhlinzekwa Komhlaba Wonke kanye Nokuthola Imithombo
Isikhumba senkomo esigcwele siwumkhiqizo othengiswa emhlabeni wonke onezindawo ezibalulekile zokukhiqiza okuhlanganisa i-Italy, iBrazil, i-United States, i-India, ne-China. Uchungechunge lokuhlinzeka luhilela izigaba eziningana: ukuthola isikhumba esiluhlaza (ezindaweni zokulahlela), ukushiswa kwesikhumba (i-chrome noma imifino), ukuqeda, kanye nokusabalalisa.
Kubathengi be-B2B, izinto okufanele uzicabangele uma uthenga izimpahla zihlanganisa:
- Ubungcweti besifunda: Izindawo zokuthambisa izikhumba zase-Italy zidume ngokusanhlamvu okuphelele okunesitayela, okugxile emfashinini; abahlinzeki baseNingizimu Melika bavame ukunikeza amanani ancintisanayo ukuze kube nekhwalithi eqhubekayo; izimakethe zase-Asia zinikeza ububanzi kusukela ezintweni ezithengiswayo ezinomthamo omkhulu kuya ezikhumbeni ezikhethekile zekhwalithi ephezulu.
- Ukuhambisana Nokuqina: Izindawo zokuthambisa izikhumba eziqinisekiswe yi- Iqembu Elisebenzayo Lesikhumba (LWG) noma ukulandela iziqondiso ze-ZDHC (Zero Discharge of Hazardous Chemicals) kuyathandwa kakhulu kumabhrendi anezibopho ze-ESG. Ukuqinisekiswa kwalezi zitifiketi kuyisinyathelo esibalulekile ekuqinisekisweni komhlinzeki. Isibonelo, Iwebhusayithi ye-LWG inikeza uhlu lwezindawo zokuthunga eziqinisekisiwe.
- Izici zentengoIzindleko zibangelwa usayizi wesikhumba (izikhumba ezinkulu zinciphisa imfucuza emphethweni), izinga lokukhetha (iphesenti le-A-grade), kanye nobunzima bokuqeda. Intengo ivame ukucashunwa ngefidi lesikwele futhi iyahlukahluka ngokwezimo zemakethe zezinto zokusetshenziswa.
- Izinto Zokuthutha kanye Nokugcina Izimpahla: Isikhumba kufanele sithuthwe ngezitsha ezilawulwa yisimo sezulu ukuze kuvinjelwe umonakalo womswakama. Abathengi kumele bahlele isikhathi sokujwayela endaweni yokugcina impahla ngaphambi kokusika.
Ukwakha ubudlelwano obuqondile nezindawo zokushuna noma ukusebenzisa ama-ejenti esifunda athembekile kunganciphisa izingozi zokuhlinzeka, kodwa njalo kufaka phakathi ukuhlolwa kwekhwalithi yomuntu wesithathu ukuze kuthuthukiswe ubambiswano lwesikhathi eside.
Ukukhetha Okuqondile Kwesicelo Semikhiqizo Yokugcina ye-B2B
Ukukhetha imininingwane efanele yesikhumba senkomo esiphelele kuyahluka ngesigaba sokugcina somkhiqizo. Ngezansi umhlahlandlela wokubonisa izinhlobo zomkhiqizo nezici ezikhethwayo.
| Umkhiqizo Wokugcina | Ukuqina Okunconyiwe | Ukukhetha ukushiswa kwesikhumba | Izimfanelo Ezibalulekile |
|---|---|---|---|
| Izikhwama Zesandla Ezinhle Kakhulu | 1.2 - 1.6 mm | Imifino noma ayinayo i-chrome | Uhlamvu olubushelelezi, umbala ocebile, izibazi ezincane; kumele kuvele i-patina |
| Izihlalo Zezimoto | 1.2 - 1.4 mm | I-Chrome ene-semi-aniline ekhanyayo | Ukuqina kombala okuphezulu, ukumelana ne-UV, indawo ehlala njalo, okuvimbela ilangabi |
| Izicathulo ze-Premium | 1.6 – 2.0 mm (engaphezulu), >2.5 mm (eceleni) | Imifino (yezinyawo), i-chrome (engaphezulu) | Ukukhuthazela okuguquguqukayo, ukumelana namanzi, ukugcinwa kwesimo |
| Ifenisha Esezingeni Eliphezulu | 1.0 - 1.3 mm | I-Chrome noma i-tannage ehlanganisiwe | Ukuphefumula kalula, ukumelana nokuklwebheka, usayizi omkhulu wesikhumba samaphaneli angenamthungo |
| Izimpahla Zesikhumba Ezincane | 0.8 - 1.2 mm | Imifino (umoya oqinile) | Ukusika okunembile, ukubukeka okuhlanzekile, ukuqeda unqenqema okuhlala isikhathi eside |
Ngokuhlela imininingwane yomkhiqizo ngendlela efanele, abathengi be-B2B benza ngcono ukusebenza kanye nezindleko. Ukuzibandakanya nefektri yokushuba isikhumba ekuqaleni kwesigaba sokuklama kungenza futhi kube nokwenzeka ukuthuthuka ngokwezifiso okuhlukanisa umkhiqizo.
Imibuzo Evame Ukubuzwa
Umbuzo 1: Abathengi be-B2B bangahlukanisa kanjani isikhumba senkomo esigcwele kokusanhlamvu okuphezulu ngesikhathi sokuhlolwa?
Izinto ezibalulekile zokuhlonza zifaka: ukungabikho kwamabala okusikwa (izikhala zemvelo ezibushelelezi), indawo efanayo ngaphandle kokulungiswa kokusanhlamvu okwenziwe, imibimbi yamafutha ebonakalayo noma izibazi zemvelo (okubonisa ukuqedwa okuncane), kanye nokuceba kombala okujulile uma kwelulwa. Abathengi kufanele futhi bacele ishidi ledatha lobuchwepheshe lesikhumba elibonisa uhlobo lokuqeda; okusanhlamvu okuphelele kufanele kufakwe kuhlu 'i-aniline' noma 'i-semi-aniline' ngaphandle kwezinqubo zokubopha.
Umbuzo 2: Yiziphi izinkinga zekhwalithi ezivame kakhulu okufanele uzihlole ekuthunyelweni kwesikhumba senkomo esigcwele?
Amaphutha avamile afaka: amanxeba aphulukisiwe ajule kakhulu ukuba angasetshenziselwa umkhiqizo, ukungena kodayi okungalingani (ukungafani kwesikhumba), imibimbi yamafutha egxile ezindaweni ezithambile kakhulu, ukukhululeka kokusanhlamvu (amapayipi), izimbobo zezinaliti ezivela ekususeni amabala, kanye nokwehluka kombala ezikhumbeni. Ukuhlolwa kwe-B2B okuqinile kufanele kusetshenziswe isampula ye-AQL 2.5 futhi kuhlolwe kokubili amaphutha okubukwayo kanye nokusebenza ngokomzimba (ukugoba, ukudabuka, ukunamathela kokuqeda).
Umbuzo 3: Yiziphi izinto ezithinta kakhulu isikhathi sokulethwa kanye nezindleko lapho u-oda isikhumba senkomo esigcwele kusuka ezindaweni zokushuna?
Izici ezibalulekile zifaka: izidingo zosayizi wesikhumba/ukufana (ukusikwa kwesikhumba vs. isikhumba sonke), ukudaya ngekhwalithi (i-aniline idinga ukudaya izigubhu isikhathi eside), ukuqedela okukhethekile (isb., ukuvimbela amanzi kwengeza izinyathelo), izitifiketi zokuhlola ezidingekayo, kanye nohlu lwamanje lokukhiqiza lwe-tannery. Ukutholakala kwesikhumba esiluhlaza sesizini nakho kuthinta amanani nesikhathi; abathengi kufanele bahlele ama-oda ezinyangeni ezi-3-6 kusengaphambili ukuze bathole ukunikezwa okuzinzile.
Umbuzo 4: Yiziphi izici zobuchwepheshe okufanele umthengi we-B2B azifake enkontilekeni yokuthenga isikhumba senkomo esigcwele ukuze agweme izingxabano?
Faka: ukubekezelelana kobukhulu (isb., 1.2-1.4mm ±0.1mm), ubukhulu bokufihla (isilinganiso se-sq. ft. ububanzi), ukuqina kokusanhlamvu (isigaba 1-5), ukushesha kombala (ukuhlikihla okumanzi/okomile ISO 11640), uhlobo lokuqeda (i-aniline/i-semi-aniline), kanye nokuhlukaniswa kwesici ngesibonelelo (isb., <5% indawo ye-B-grade). Cacisa amazinga okuhlola kanye nokubekezelelana kokuhlukahluka kwe-batch-to-batch. Lokhu kuvimbela izingxabano zokwehlisa izinga.
Umbuzo 5: Kungani intengo yesikhumba senkomo esiphelele ihluka kakhulu phakathi kwabaphakeli, futhi abathengi bangaqhathanisa kanjani izingcaphuno ngokulinganayo?
Umehluko wamanani uvela ku: imvelaphi yokufihla (izikhumba eziluhlaza zaseYurophu zibiza amanani aphezulu), izinga lokukhetha (iphesenti lebanga lika-A ngebhetshi ngayinye), ubunzima bokuqeda, kanye namaphrimiyamu omkhiqizo. Ukuqhathaniswa okufanele kudinga ukucela intengo nge-sq. ft. yebanga elithile kanye nobukhulu, ngemibandela ecacile yokunciphisa. Cela njalo isampula yokufihla ebhetshini ukuze uhlole inani, hhayi izindleko kuphela.
Umbuzo 6: Yiziphi izindlela zokugcina nokuphatha isikhumba senkomo esigcwele ukuze sigcine ikhwalithi ngaphambi kokusikhiqiza?
Gcina ku-10-25°C kanye nomswakama ongu-50-65%, kude nokukhanya kwelanga okuqondile noma imithombo ye-UV. Izikhumba kufanele zibekwe zicaba noma zigoqwe kancane, zibekwe eceleni ngaphakathi, kuma-rack abushelelezi. Gwema ukugoqa ngepulasitiki ukuze kugcinwe isikhathi eside ukuze kuvinjelwe ukwakheka komswakama kanye nesikhunta. Lungisa isikhumba endaweni yasefektri amahora angu-24-48 ngaphambi kokusika ukuze kuqiniswe ubukhulu.
Umbuzo 7: Imithethonqubo yamazwe ngamazwe kanye nemithethonqubo yokuhweba ikuthinta kanjani ukutholakala kwesikhumba senkomo esigcwele kusuka ezifundeni ezahlukene?
Intela yokungenisa impahla esikhumbeni senkomo esigcwele iyahlukahluka kuye ngezwe lapho ivela khona nendawo eya khona (ikhodi ye-HS 4107). Ezinye izifunda zinikeza amanani akhethekile ngaphansi kwezivumelwano zokuhweba mahhala (isb., i-EU-Vietnam, i-USMCA). Ngaphezu kwalokho, ukuthobela imithetho efana ne-REACH (EU) noma i-Proposition 65 (US) kungadinga ukuhlolwa komuntu wesithathu kwezinto ezinqunyelwe, okunezela izindleko kanye nesikhathi sokuhola. Abathengi kumele baqinisekise imibhalo yokuthobela imithetho yomhlinzeki futhi bayifake ekubalweni kwezindleko ezifike endaweni.
Ukuze uthole ireferensi yesevisi yokukhiqiza ehlobene, buyekeza ukukhiqizwa kwezikhwama zesandla ezenziwe ngokwezifiso ; qinisekisa ububanzi bamanje, ikhotheshini, uhlelo lwesampula, izidingo zekhwalithi, kanye nemigomo yenkontileka yephrojekthi ethile.
