EXXXX-AAA-EXHT

E = Extrusion + XXXX = Material | AAA = Dimension A | EXHT = Hollow Tube

DETAILS

The first segment begins with E to indicate that the product is an extrusion. The XXXX represents the extruded EMI Material. 

The second segment is Dimension A.

The third segment (EXHT) indicates that the shape is hollow tube.