高幟免保溫材PIRALU隔熱風管系統(免保溫材及鐵皮)
GOLDEN FLAG PRE-INSULATED ALUMNIUM
DUCT BOARD
　
Reinforcements for PIRALU Ducts (30mm thickness, Pressure: 700pa)
　
Reinforcements for PIRALU Ducts (30mm thickness, Pressure: 1,000pa)