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Self-blocking sleeves (Cis Sud exclusive patent) are designed to connect corrugated tubes.
The internal rubber joint ensures that the connection is water-tight and prevents the entry of external elements.
The two modules that comprise the body of the sleeves are pressure locked, holding the internal sheath and blocking off the two ends being connected and preventing the tubes becoming disconnected.
The modules comprising the body are made of polypropylene.
The internal sheath (joint) is made of heat shrinking rubber.
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