PURPOSE: To obtain a cylindrical formed body wound by combined spun bond filaments composed of at least two kinds of resin components mutually sufficient melting difference and thermally fused by low melting point resin component, useful for filter, drain material, etc., and having good draining property and pressure resistance.

CONSTITUTION: This cylindrical formed body is obtained by thermally fusing multicomponent combined spun bond filaments composed of at least two kinds of resin components comprising a high melting point resin component and a low melting point resin component having ≥10°C difference in melting points and forming the fused material into a tube. The cylindrical formed body excellent in draining property in soil water, filtering accuracy (stability), filtering life, pressure resistance, foaming preventing property, cake cleaning property, etc., is obtained in good productivity.