Armouring tape (102) for wrapping around a hose (300) during its fabrication by a hose-wrapping machine (200; 400). The tape (102) is coiled into a roll (100) having a hollow core (109) from which the tape (102) is unwound to be wrapped onto the hose (300). The hose-wrapping machine (200; 400) rotatably mounts the roll (100) with the hose (300) passing through the roll core (109), the roll axis (108) being skewed to the hose axis (304) by the helix angle at which the tape (102) is to be wrapped onto and along the hose (300). The hose (300) is moved longitudinally through the longitudinally static roll (100) and at the same time, the roll (100) is rotated around the longitudinal axis (304) of the non-rotating hose (300). The armouring tape (102) unwinds from the inside (109) of the roll onto and along the hose (300) so as to wrap the hose (300) with a uniform helix of armouring tape (102). The use of a tape (102) containing an elastomer-embedded array of armouring cables (104) enables armouring wires and elastomer layers to be applied without a stabilising layer of fabric, and greatly simplifies setting-up of machinery for hose fabrication. The use of a tape roll (100) which can be unwound from its inside (109) enables hoses to be wrapped without having to orbit rolls that are very large and heavy.