Pultruded member with functional features

A tubular pultruded composite member having a longitudinal axis comprising a plurality of reinforcing fibers in a solid polymer matrix, said member having embedded in a surface thereof at least one functional feature having been incorporated therein during its manufacture when the fiber reinforced liquid polymer was pulled through a pultrusion apparatus, wherein said tubular pultruded composite member has embedded therein a series of wall spacers parallel to said longitudinal axis, said wall spacers having been used to control the wall thickness of said tubular pultruded member during its manufacture when the fiber reinforced liquid polymer was drawn over a mandrel and through a die,