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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.在我们这个国家，不真正了解农民，就谈不上从深层意义上去了解和认识我们这个民族和我们的国情。本片通过插队青年肖平的视野给观众讲述了六十年代我国西北部一个偏僻小山村的那段艰辛坎坷的往事。“文革”一场动乱，最大的受害者是我们的农民，他们用枯瘦的却坚韧不拔的脊梁背着我们这个国家，作者深情地爱着那块贫脊、苍凉、古老而质朴的黄土地，爱那些纯朴可爱的庄稼人，他用笔为他们画一幅像，画他们的可亲可爱、也画他们受几千年遗留的封建宗教意识束缚造成的可怜、可悲乃至可恨！然而，爱也罢，恨也罢，全是母与子一般的眷恋真情，全是骨与肉。本片通过插队青年肖平的视野给观众讲述了六十年代我国西北部一个偏僻小山村的那段艰辛坎坷的往事。…,樊哙出来道：既然没人愿意说，那还是我樊哙来吧。2006年 ルパン三世 セブンデイズ?ラプソディ 七日狂想曲The wave of protests is beyond the scope of this book.不过，当蒲俊打探到番邑即将要运粮给安桐的消息，众人纷纷开怀大笑，受再多的苦也显得无足轻重。JSON is a lightweight text data exchange format