He pikitanga matamua Wei Chen , he pikitanga hidrauliki, Wei Chen he pikitanga hidrauliki, Wei Chen 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 Wei Chen he hunga hou, he hunga tawhito e haere mai ana ki te whakatakoto whakaaro, ki te rapu