1. Umbhobho we-PE wokumbiwa kwemigodi Phakathi kwazo zonke iiplastiki zobunjineli, i-HDPE inokumelana nokunxiba okuphezulu kwaye iyona nto ibonakalayo. Ukuphakama kobunzima bemolekyuli, kokukhona i-material ingagugi kakhulu, ide igqithe kwizinto ezininzi zentsimbi (ezifana ne-carbon steel, stainless steel, bronze, njl. njl.). Ngaphantsi kwe-conditi...
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