Introduction: Uh, uh... The alpha gamma gamma ray used by the witch.

摘要

Colour profile (1) used in the construction of a spirally-coiled double-walled thermoplastic conduit,which has a hollow profile essentially a square section,two side walls (5) and an outer wall (3) and an inner wall (4) limiting cavity (2) inside. In the hollow profile the wall intended to form the inner wall (4) of the pipe is thickmore than the wall (3) of the hollow profile intended to form the outer wall (3) of the pipe. The inner curvature radius (7) of the adjacent axles on the thickest wall (4)is significantly greater than the radius of curvature (6) of the other two axis of the cavity (6) and the inner surface of the thickest wall (4) includes a nerve (8) extending in the profile cavityon the side of the profile forming the inside of the pipe,in the longitudinal direction of the profile at least substantially the entire length of the profile.