What's the size of the PVC pipe?
rigid flame retardant tubes: rigid PVC tubes, also called PVC, cold rolled wire tubes, light, medium, heavy duty. Pipe length 4m / root, the color is white, pure white, curved to special bending spring. Connection pipe joint using the insertion connection, the connection node table with special adhesive, sealing interface.
Semi hard flame retardant tube: also known as PVC flame retardant plastic pipe, PVC resin by adding plasticizers, stabilizers and flame retardants, etc., by extrusion and obtained for wire protection, the general color is yellow, red, self and so on. The pipe joint is made of a special joint and is coated with plastic adhesive. The pipe is bent freely without heating. It is supplied in bundles. Each bundle is 1000m. The above mentioned "PVC tubes" should be used in accordance with the specific material and construction methods. But the use of general residential use quota items rigid flame tube.
Rigid polyvinyl chloride pipe: it is made up of polyethylene resin, stabilizer, lubricant and so on. It is processed by kneading, rolling, plasticizing, cutting and extruding. The heating, heating, bending and cooling are available. Mainly used for wires, cables and other bushings. Pipe length is generally 4m / root, the color is generally gray. Pipe connections shall be heated, spigot and socket connections and plastic hot air welding. The bending must be heated.