PURPOSE: To form pretty patterns of high accuracy and enhance design effect by forming pattern layers with pattern spaces on the outer surface of a tubular material, filling the pattern spaces with a filling material and providing the pattern layers with fibers arranged in the peripheral direction of the tubular material.

CONSTITUTION: On the outer surface of a tubular material 1 constituted of wound prepreg composed of high strength fibers impregnated with synthetic resin, pattern layers 2 with pattern spaces between the fibers adjoining each other at a given interval are formed, and the pattern spaces of said pattern layers 2 are filled with a filling material 3. Said pattern layers 2 are provided with the fibers arranged in the peripheral direction of the tubular material 1. Pretty patterns of high accuracy, therefore, can be formed to enhance design effect, and the whole wall thickness can be increased by the pattern layers 2 and the filling material 3, while the fibers arranged in the peripheral direction of the tubular material 1 increases pressure break resistance and flexural strength of the tubular material.