Ngokwesiseko semveliso, le ngxelo ibonisa imveliso, ingeniso, ixabiso, isabelo semarike kunye nezinga lokukhula kohlobo ngalunye, ngokuyinhloko yahlulwe ibe TPU (Thermoplastic polyurethane) TPE (Thermoplastic elastomer) Abanye (Silicone, PVC) 3. Zeziphi kanye prostate izixhobo zomhlaza ingeniso, intengiso, kunye neendleko...
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