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Pneumatic valve for blowing plastic balls, of which they are constituted by an elastic body with a perimetric channel comprised between a top penetration head and a tip that also acts as a stop preventing its detachment from the ball, characterized by having practiced axially an internal cavity with a throttled access hole. (Machine-translation by Google Translate, not legally binding)
ES97741U1962-07-261962-07-26
Pneumatic valves for blowing plastic balls
ExpiredES97741Y
(en)