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嗯，青山辛苦了。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.自此精修，渐进于无剑胜有剑之境。(2) Fishing in the separation zone.其后，啸山风闻傲天成为金棠和桂生的手下，并经营起运送烟土生意。啸山发现这是回归上海的好时机，便趁傲天运送鸦片时，拦途截劫，终如愿与傲天、金棠共同成立三铿公司。几年间，「三铿」飞黄腾达，雄霸鸦片市场，横行法租界，三人更兄弟相称，合称上海三大亨！本片是《罪途》三部曲的第二部，紧接《罪途1之死亡列车》，后续《罪途3之正义规则》，三集共同讲述了一个故事。上集的最后，乘警发现自己的物证有误，而且其他几位乘客各执一词，使得案件更加扑朔迷离。在调查陷入僵局之时，一桩十年前的校园暴力案件浮出水面， 当年的真相被人掩盖，真正的犯人又会是谁？