1. The Performance on anti-storm:can resist typhoon at 12 levels, and billow at 7 meter-high. Its capacity gets to 85 percents the o the velocity of flow at 1m per second.
2.submergence state: the slant corner of net-cage\'s buoying and subsiding is within 10° under 1m per second of the velocity of flow.
3.submergence time: the submergence time of submerged net-cage is between 8 and 15 minutes (can be controlled); and the floating time of submerged net-cage is between 3 and 13 minutes (can be controlled).
4.submergence depth: the submergence depth of submerged net-cage is between -4 and -10 meters (can be set before)
5. Use lifespan: The structure of net-cage can be used more than 10 years for the whole structur has no metal accessories, needing no mend. The net-clothes can be used 2 or 3 years.
6. Sea-area\'s setting: Can be set at the half-opened or opened sea-area where the isobaths is above -15M.