WE CONTEMPLATE FLOW PHENOMENA ! WE EXPLORE MYSTERY OF SOIL ! CHUBUBIKA CORPORATION was established in 1966, located near Nagoya city. We are a pioneers in irrigation related equipment , such as water valve , sluice gate , and flap gate. We have various kinds of products (made of PVC and steel material). That is used for flow control and regulation of water , especially in paddy field and canal. BUBSUISEN , one of our main product , is simple slide inlet valve for water control , ...