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I-Gumboots yenziwe ngani?
Uma uze kuleli khasi, cishe uyazi ukuthi ayini ama-gumboots nesidingo sekhwalithi ephezulu, amabhuzu angangeni manzi.Kodwa, uke wema ukuze ucabange, enziwa ngani amabhuzu emvula?Yebo, amabhuzu amaningi angangeni manzi enziwa ngerabha yemvelo noma i-polyvinyl chlor...Funda kabanzi -
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Izwe lokuklama nokukhiqiza izicathulo liye lathuthuka kakhulu phakathi namakhulu amabili eminyaka adlule.Sezadlula izinsuku zokuba nomkhandi oyedwa olungisa idolobha lonke.Ukusungulwa kwezimboni kule mboni kulethe izinguquko eziningi, kusukela ekutheni izicathulo zenziwa kanjani ukuze zithengiswe...Funda kabanzi -
I-Ideal Material ye-FOOTWEAR Industrial
Imboni yezicathulo idinga izinto ezinokumelana okuphezulu kwemishini, ukusebenza kahle ekucubunguleni, emisha kanye nokubukeka okuphezulu.Izinhlanganisela ze-PVC zenziwe ngendlela efanele ukuhlangabezana nalezi zidingo.Ukwakhiwa kwezinhlanganisela ze-PVC kuhambisana ...Funda kabanzi -
Umlando we-PVC
Isikhathi sokuqala ngqa i-PVC yatholwa ngengozi ngo-1872 ngusokhemisi waseJalimane, u-Eugen Baumann.Yakhiwe njengoba i-flask ye-vinyl chloride ishiywe ichayeke elangeni lapho yenza i-polymerized.Ngasekupheleni kwawo-1800 iqembu...Funda kabanzi
