Disc air diffuser
The new air diffuser wall penstocks consists of a trachea, a rubber disc, a movable plate, a disc body and a fixing ring. The trachea is a closed tube at the top with a tracheop cap at the top for assembling and debugging the elasticity of the rubber disc; There is a small flange under the tracheal cap to snap a fixing ring; The rubber disc is tightly clamped between the tracheal cap...
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