It is used to make indoor lighting lines of the casing, mainly from the normal operation of the protection of lighting lines, but also a certain degree of toughness and rigidity; easy to bend the line tube is not easy to break? More
According to the size of the diameter with the corresponding spring into the elbow. Bend out after the spring can be.
With a little smaller than the diameter of the extension of the spring on the inside, forced out of the extension of the pull spring on the shape, provided that the quality of pvc tube is better.
To the hardware store to buy a few different specifications of the spring (different diameter of the different hood specifications), it is easy to hold a variety of angles of the bend, and will not break.
PVC flame retardant pipe diameter is more, you can buy pipe at the same time with the pipe spring. In the construction of the elbow spring will be tied to the two ends of the PV line, so that the spring in the middle of any pull the pipe, so that you can easily in any part of the pipe pipe construction.
