... farming ,seawater culture,can be as water treatment equipment,and chemical storage equipment ... board, 9. The overflow outlet, 10.the water inlet, 11.the water outlet, 12. The base ... (prepare by your side), 13.The steel frame, 14. The drainage outlet ... .15. The drainage board, 16.The bottom board, 17.The outside jotting board, 18.the side board GRP water ...