,
Hana ʻia nā geotextiles ʻaʻole i ulana ʻia ʻo Honghuan mai ka polyesterpolymer kiʻekiʻe e ke kaʻina hana kuʻikuʻi.Hana maikaʻi ia i ka wai hoʻokahe, wai kānana a me nā mea ʻokoʻa, hoʻohana nui ʻia i nā papahana geotechnical, nā papahana hydraulic, nā papahana kaʻaahi a pēlā aku.