My new home shop a good tiles, some places knock the sound is not the same, the decoration company that is buried under the line will lead to sound wrong, is this right? Or because the tiles are empty drums, decoration companies refused to admit? It is reasonable to say that between the tiles and the pipe there is a very thick cement sand, it should not lead to the sound of drums on the tiles, right? Which professional advice urged, anxious! anxious! anxious! Thank you! More
when the non-galvanized steel pipe is threaded, the connecting ends are welded across the ground wire; when the galvanized steel wire is connected with the copper wire, the cross-sectional area is not less than 4mm2; When the steel pipe is screwed, the two ends of the connection are fixed with a special grounding card; 3) The metal trunking is not used as the grounding conductor of the equipment
What are the reasons for the explosion of the cable? In the cable online
No, it 's just that you may have some cement and sand
