นัฐกานต์ วุฒิพิศาล ม. 4/10 เลขที่ 14
- 10. Chaipattana Aerator, Model RX-1
Chaipattana Aerator, Model RX-2
Chaipattana
Aerator, Model RX-3
Chaipattana Aerator, Model RX-4
- 11. Chaipattana Aerator, Model RX-5
Chaipattana Aerator, Model RX-6
Chaipattana Aerator, Model RX-7
Chaipattana Bio-Filter, Model RX-8