110pvc管道止回阀卫生间排风扇逆止阀烟道止回阀通风单向止回阀 '110pvc pipe check valve toilet exhaust fan check valve flue check valve ventilation one-way check valve'

Brand: other article No.: 001 Purpose: check model: 110 Specification: two ends are connected to 110pvc pipe, one end is 110pvc and one end is 80/100 exhaust pipe, two ends are connected to 75PVC pipe, one end is 75pvc and one end is 80/100 exhaust pipe, Structural form of 80/100 exhaust duct at both ends: swing type Order No.: 001 Working temperature: normal temperature flow direction: one-way standard: national standard connection form: ferrule form: diaphragm type material: plastic type (channel position): straight type Whether cross-border export is exclusive supply of goods: No Pressure environment: atmospheric pressure processing customization: No Applicable medium: air