If you are familiar with flexible conduit, yes it is a pipe connector that are often seen on construction industry. Conduit connector itself is available with two various diameters, the thick one and the thin one.
The thick one is more robust and specifically used for extra mechanical protections, while the thin one is a great combination between strength and durability, so it can be used as a protector of electrical power, communication cables, motor leads, listed assemblies, wire fixtures and manufactured wiring systems.
Generally, the thick flexible conduit is a non-UL made with high grade galvanized low carbon steel with an interlocking design. But there are also manufactured from a high grade steel, hot dipped in a zinc bath for protection against normal effects of corrosion.
For more information about flexible conduit products, kindly contact Bliss Yih Enterprise Manufacturer, Taichung, Taiwan.