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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.4. Code: hello; Hello; Hello, wait.如今胡家诚心上门求亲，双方皆大欢喜。　　在另一边，糖果的网络主播朋友齐淼偶遇恶犬袭人，挺身与恶犬搏斗，救下行人，令人意想不到的是，整个过程被人拍下，经过恶意剪辑后，竟以“虐狗”为标题发送到网上，齐淼一时间陷入舆论漩涡，百口莫辩。陈爷爷你想，既然有人弄了个假玉米放在张家，那人能不防着真的回来？少爷为何会被刑讯逼供？还不是他们急了，狗急跳墙。3 to play N64 games and PS games, need Wii classic handle, otherwise the key position is not enough风流成性的郑在民是某财团董事长的二公子，在父亲的荫庇下过着逍遥的日子。其未婚妻崔英珠为见初恋男友仁旭也要前往雅加达，在民知道后前往其下一目的地巴厘岛。英珠到雅加达，仁旭带她前往巴厘岛游览，却遇上在此等候的在民。英珠慌称仁旭是其大学学长，但二人的表情让在民心中疑惑。在民打电话回去调查，得知了二人的关系，表面上却不动声色……