What is the difference between a fireproof bridge and a galvanized bridge?
"Wire" means: wire refers to the wire, "tube" refers to the water pipe. "Under the water pipe under the wire" is home improvement in the hydropower project in a jargon. Meaning: water pipe to go the sky, the wires go underground. Explanation: The water pipe is best to take the ceiling, covered with a ceiling, easy to leak when the maintenance; wire through the ground, the cable is not easy to go wrong, take the ground to avoid the water pipe. "Under the water pipe under the wire" can not be misunderstood, in the wall or underground tiled, the water pipe in the wire under the tube. This laying unsafe, this situation to ensure that the wire tube in the water pipe in the next.
Metal wire tube, PCV tube is usually used for home improvement (non) dark laying, KBG tube for the specification occasions, public equipment or other occasions. Under normal circumstances not dark laying. And the KBG tube protects the wire more
What is the meaning of the cable 3 * 1 * 0.8?
