TH,由THT通风橱,THO,THU装置组成。通风橱和THO装置由表层涂有散粉的镀锌钢板制成。THU装置由镀锌钢板制成。THO在尖顶和平顶都可以安装。
Archived products (not for sale): Roof cowl TH 300 Roof cowl TH 400