Waved mesh tube

A waved mesh tube comprising multiple parallel first strings spirally extending in a first direction and multiple parallel second strings spirally extending in a second direction, the second strings being laid on the first strings;

• said waved mesh tube being characterized in that:
• the mesh tube has continuous circles of waved bending sections arranged along an axis of the mesh tube, the bending sections being arranged along entire length of the mesh tube, the mesh tube being formed with the bending sections so that the wall of the mesh tube has multiple wave crests and wave troughs axially adjoining each other, the wave troughs defining an inner diameter of the mesh tube, while the wave crests defining an outer diameter of the mesh tube, a difference between the inner diameter and the outer diameter being a thickness of the wall of the mesh tube;
• each of the wave crests and the wave troughs having an acute angle.