IMPROVEMENTS IN TUBULAR BODIES AND METHODS OF FORMING SAME

摘要

A tubular body (10) comprises an inner hollow core (12) and an outer casing (14) of one or more strips of self mechanically inter-engaging helically wound material having a higher yield stress than that of the core material. Also provided is a method of forming the tubular body (10) comprising the steps of winding the outer core (14) onto the inner (10) core (12) and an end connector (32) for use with said tubular body (10) when said body (10) is provided with helically extending detents (30a) on an outer surface thereof.