E rua ngā wāhanga matua o te mira hama o Hongyang: he whāngai impeller auau rerekē me te kuru wai-maturuturu. Ka tutuki i te whāngai impeller auau rerekē te whāngai ōrite mā te whakahaere i te tere whāngai, kia tino mahi ai te kuru i te kaha katoa i ngā wā katoa kia pai ai te mahi. Tekau mā rima ngā wāhanga o te mīhini katoa, ia wāhanga he mea hanga ki ngā rauemi kounga teitei, he hanganga pūtaiao, he mahi pumau hoki.