Drain pipe for on-floor drainage piping system

摘要

The present invention relates to a drain pipe for a layered pipe which can reduce the height of a pipe installed on an upper part of a foundation concrete to reduce the height of a floor finish of a bathroom,Wherein a vertex angle and a base angle of the isosceles triangle are rounded, a length of a base of the isosceles triangle is greater than a height, and a vertical bar is integrally formed on an equilateral side of the isosceles triangle, And the vertical bars formed respectively at the two equally spaced sides are alternately formed.;