PVC cover (round) 燕屋通风盖 (圆形)
PVC cover (round) 燕屋通风盖 (圆形)
用于燕屋通风孔以减低气流或减少从通风孔折射进来的光线.
Swiftlet house ventilation holes - to reduce air flow & sunlight.
用于燕屋通风孔以减低气流或减少从通风孔折射进来的光线.
Swiftlet house ventilation holes - to reduce air flow & sunlight.