<prompt> Bheka isigaba esingezansi bese uphendula umbuzo emva kwalokho ngolimi olufanayo nesigaba: Ukudlula: I-HDPE inamandla amakhulu okuqina. Isetshenziswa emikhiqizweni nasekuhlanganiseni izinto ezinjengezimbiza zobisi, amabhodlela ezinhlanzi, amabhodlela ebhodwe, iziqukathi zemfucumfucu, namapayipi amanzi. Ingxenye eyodwa kwezintathu yazo zonke izinto zokudlala zenziwa nge-HDPE. Ngo-2007, ukusetshenziswa kwe-HDPE emhlabeni wonke kwafinyelela inani elingaphezu kwamathani ayizigidi ezingama-30. Umbuzo: Zingaki izigidi zamathani okudliwa kwe-HDPE emhlabeni wonke ngo-2007?  <response>: 30 Izinketho 