The square style net-cage's main body is PE80 pipe, which diameter is 250mm. This kind of net-cage can be cultured in the sea area where wind power is less than 8 levels; velocity of flow is slower than 0.6m per second, height of wave is under 4m. Normally the net-depth is 5m. Haiyoo can ensure the lifespan of this kind net-cage longer than 10 years.

There are four specs of the square style net-cage: 6×6、8×8、10×10、12×12.The kind of net-cage can be chosen and arranged optionally to easy the box-dividing of small fries and its combination quantity is limitless in theory if the sea area and economy ability allowed.