SDA 20x5
SDA 20x10
SDA 20x15
SDA 20x20
SDA 20x25
SDA 20x30
SDA 20x35
SDA 20x40
SDA 20x45
SDA 20x50
SDA 20x60
SDA 20x70
SDA 20x80
SDA 20x90
SDA 20x100
กระบอกลม SDA 20x5 /10/15/20/25/30/35/40/50