To simply and inexpensively produce a drum (a roller having a pin) of an apparatus for water jetting flow treatment of a nonwoven cloth having emboss patterns and/or hole patterns with flowing water by improving the apparatus.

This drum 1 is composed of a metallic stable mesh drum 11 covered with a mesh woven material 12 as a spacer or an underlay and an unstable plastic sleeve 5 covering the mesh woven material, and the plastic sleeve has plastic projecting parts 6 outwardly projecting to a radial direction and draining holes 7 distributed on the whole periphery of the projecting parts.