Classification of electric butterfly valves - mechanical equipment, electric butterfly valves, electric butterfly valves, damping butterfly valves, electric butterfly valves, electric butterfly valves belong to the mechanical equipment industry, but whether in daily life or industrial production, electric butterfly valves are widely used in hotels, terminals, passenger stations, stations, theatres, shopping malls, factories, office buildings, reconstruction of old buildings, indoor decoration, ceiling and other places
Keel is the skeleton and base material for decoration, which is widely used