高容量屋脊通風器:通(tong)(tong)研(yan)環(huan)保高容量屋脊(ji)通(tong)(tong)風器有流(liu)線型的外形、線條流(liu)暢(chang),抗風阻力小,流(liu)量系數高,通(tong)(tong)風排氣效果非常好(hao)。設有風閥門控制裝置(手動(dong)(dong)、電動(dong)(dong)近(jin)控制),排水通(tong)(tong)暢(chang),無雨水滲(shen)漏隱患(huan)。