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The outer surface is plated with copper, and the raw material of the core wire is mainly aluminum. The outer surface is scraped and the aluminum core is silvery white. The quotation per unit of aluminum is about 1/4 of that of copper, and the same volume of aluminum is only 1/3 of that of copper, so the quotation per unit of copper clad aluminum is much cheaper than that of oxygen-free copper. Copper-clad aluminum has poor oxidation resistance, faster oxidation speed in humid environment, and poor tortuosity resistance of aluminum raw materials. It is not suitable for laying in the wall, and is only suitable for customers who do not have high demand for network stability or may temporarily establish a network.(For Vista users, right-click the dragon icon to choose Run as Administrator.)江城大学有一个“最伟大的推销员”鲁如花，她神出鬼没，能够想尽一切方法推荐各种产品，鲁如花在一次推销中，与在国外长大的富家子弟文初不打不相识。文初在父亲的逼迫下回国的文初仇视一切，更是讨厌“唯利是图、小心眼、市侩”的鲁如花。但在相处中，文初逐渐发现“如花其实不如花”，原来，鲁如花为了生计和学业，帮助患有先天疾病的双胞胎弟弟鲁似玉筹集医药费，才想尽办法去挣钱。冷若冰霜的文初被积极、可爱的如花不断吸引。正当二人感情升温之际，似玉的病情、文初家人的压力向二人袭来。如花的商业才能被盛世集团看中，董事长夜然的特别关怀也让二人的感情出现危机。如花从未向生活低头，而文初亦排除万难走向如花，两人终于走到了一起再见。该剧故事中反映了现在老、中、青各阶段人们的婚姻状态，通过三名律师来化解各类婚姻矛盾讲述着不同的了悲欢离合。该剧的三个主人公刘神、安静、费丽丽堪称的婚姻官司的专家，他们通过在办理案件的过程中挽救好多当时人的婚姻，可是他们各自的婚姻都似乎一塌糊涂的不得了，在处理和这么多的案例中，他们都各自找到了自己的生活定位……流水潺潺，幽谷空旷。