He pikitanga matamua Ngā Songqi hou , he pikitanga hidrauliki, Ngā Songqi hou he pikitanga hidrauliki, Ngā Songqi hou he pikitanga hidrauliki, he pikitanga tapatahi, he pai, he nui rawa te utu He kaha rawa te mahi, he teknolojia whakaneke noa atu. Hohoro mai Ngā Songqi hou he hunga hou, he hunga tawhito e haere mai ana ki te whakatakoto whakaaro, ki te rapu