FIELD: devices for manufacture of products of polymeric materials, applicable in the chemical industry for producing of the facing batten. SUBSTANCE: the extrusion head has a body with a cooling system and inserts located on it. The body is made detachable. The inserts make up a moulding slot of a profiled section consisting of two moulding channels. The moulding channels communicate with a flow-through channel and are enclosed between the profiled and plane sections of the inserts. The inner surface of the profiled insert is formed by a sinusoid curve. Rods are positioned longitudinally in the points of concavity of the mentioned surface. EFFECT: provided even distribution of speeds in all points of cross-section of the extruded product. 4 dwg
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