欧美精品区在线网站_欧美精品区在线网站

Run the script to see if it has any different effects.The outer surface is plated with oxygen-free copper, and the raw materials of the core wire are brass, bronze and miscellaneous copper. Because the raw materials of copper inside and outside are different, it is called copper clad copper. The quotation is moderate, and the quotation for miscellaneous copper is usually only half or lower than that for oxygen-free copper. The produced wire is attributed to non-standard wire, and its anti-twisting and anti-oxidation functions are better than those of copper-clad aluminum. Suitable for induction and wiring engineering with low accounting, it can lay hidden lines in the wall. However, due to the influence of raw materials, the resistance is relatively large, with a 100-meter resistance of 25-35 ohms or even more, and the signal attenuation is very large. It is not so-called all-copper. We pay attention to the distinction.奈何这个李左车就是不识时务，自己已经决定的诏命，还要三番四次地劝谏。秦枫微微一笑，道：无妨。这会子，就让京城的人先看他孙子。C天色渐渐暗了下来，一日就这么过去了。