Fi hoʻokumu ʻia i ka makahiki 2003, me nā makahiki hoʻāʻo a me ka hoʻomaikaʻi ʻana, ʻo mākou ke alakaʻi alakaʻi o Kina i ka ikaika kiʻekiʻe PP i ulana geotextile a me nā paipu geotextile.

ʻAʻole ʻo Honghuan kahi hui piha akā e kālele ana i nā huahana kikoʻī, geotextile i ulana ikaika kiʻekiʻe, geotubes.

Hoʻoikaika mākou e hāʻawi i ka ʻoi aku ka maikaʻi a me ka lawelawe mea kūʻai aku i kā mākou mea kūʻai aku, hāʻawi i nā hoʻonā hou e kākoʻo i nā luʻi o nā hana kīwila, ʻoihana, nā hana kūkulu kaiapuni.