a einstu00fcckig from a thermoplastic plastic piping formmasse stranggepreu00dftes for inclusion of collections, including a kabelschutzrohr for inclusion of cables as lichtleiterkabeln is innenseitig using a gleitmittels, preferably in conjunction with a profile, reibungsmi ndernd trained.the lubricant consists of silicone oil and is in a low level in the formmasse incorporated, but on the inner surface of the rohrwandung a reibungsminderung creates.
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