مكان المنشأ
Guangdong, China
اسم العلامة التجارية
ZUPON
نوع
window and door ventilation
rated ventilation volume
90 cubic meters /m, h (electronic & passive)
heat preservation
2.7w /square meter, k
noise insulation in open position
27 dB(A)
noise insulation in closed position
37 dB(A)