铝通 2.5Mpa-DN450蝶式缓闭止回阀，450H47X-25Q
铝通 2.5Mpa-DN400蝶式缓闭止回阀，400H47X-25Q
铝通 2.5Mpa-DN350蝶式缓闭止回阀，350H47X-25Q
铝通 2.5Mpa-DN300蝶式缓闭止回阀，300H47X-25Q
铝通 2.5Mpa-DN250蝶式缓闭止回阀，250H47X-25Q
铝通 2.5Mpa-DN200蝶式缓闭止回阀，200H47X-25Q
铝通 1.6Mpa-DN1400蝶式缓闭止回阀，1400H47X-16Q(Z)
铝通 1.6Mpa-DN1200蝶式缓闭止回阀，1200H47X-16Q(Z)
铝通 1.6Mpa-DN1000蝶式缓闭止回阀，1000H47X-16Q(Z)
铝通 1.6Mpa-DN900蝶式缓闭止回阀，900H47X-16Q(Z)
铝通 1.6Mpa-DN800蝶式缓闭止回阀，800H47X-16Q(Z)
铝通 1.6Mpa-DN700蝶式缓闭止回阀，700H47X-16Q
铝通 1.6Mpa-DN600蝶式缓闭止回阀，600H47X-16Q
铝通 1.6Mpa-DN500蝶式缓闭止回阀，500H47X-16Q
铝通 1.6Mpa-DN450蝶式缓闭止回阀，450H47X-16Q
铝通 1.6Mpa-DN400蝶式缓闭止回阀，400H47X-16Q
铝通 1.6Mpa-DN350蝶式缓闭止回阀，350H47X-16Q
铝通 1.6Mpa-DN300蝶式缓闭止回阀，300H47X-16Q
铝通 1.6Mpa-DN250蝶式缓闭止回阀，250H47X-16Q
铝通 1.6Mpa-DN200蝶式缓闭止回阀，200H47X-16Q
