Electrical cable installation duct, having flexible plastic tubing having free friction surface plastic matrix distributed lubricating particulate having composite carbon black friction coefficient below 0.1

摘要

The elongated tubular product has a constant cross section with a plastic solid tube (1) which is flexible enough to be wound and unwound. The solid tube has a surface coating (3) with the free surface (2) forming a friction surface comprising a plastic matrix with a distributed lubricating particulate solid phase (4) flush with the free surface. The lubricating particulate phase is composite including carbon black and a lubricating plastic coefficient with a friction coefficient below 0.1.