7075铝合金和铁（做机器设备常见的那种，可钻孔攻丝）那个硬度高，韧性好？还有，7075怎么看真假？ 上海大学哪些专业最值得读？
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绛旓細7075鏄摑鍚堥噾鏉愯川銆7075閾濆悎閲鏄竴绉嶅喎澶勭悊閿诲帇鍚堥噾锛屽己搴﹂珮锛岃繙鑳滀簬杞挗銆7075鏄晢鐢ㄦ渶寮哄姏鍚堥噾涔嬩竴銆7075閾濆悎閲戠粨鏋勭揣瀵嗭紝鑰愯厫铓鏁堟灉寮猴紝瀵逛簬鑸┖銆佽埞鐢ㄦ澘鏉愭渶浣炽傛櫘閫氭姉鑵愯殌鎬ц兘銆佽壇濂鏈烘鎬ц兘鍙婇槼鏋佸弽搴斻傜粏灏忔櫠绮掍娇寰楁繁搴﹂捇瀛旀ц兘鏇村ソ锛屽伐鍏疯愮（鎬у寮恒備骇鍝佺壒鐐1銆侀珮寮哄害鍙儹澶勭悊鍚堥噾銆2銆佽壇濂芥満姊版ц兘銆
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绛旓細7075缁煎悎鎬ц兘鏇村ソ銆7075閾濆悎閲鏄竴绉嶅喎澶勭悊閿诲帇鍚堥噾锛屽己搴﹂珮锛岃繙鑳滀簬杞挗銆7075鏄晢鐢ㄦ渶寮哄姏鍚堥噾涔嬩竴銆7075閾濆悎閲戠粨鏋勭揣瀵嗭紝鑰愯厫铓鏁堟灉寮猴紝瀵逛簬鑸┖銆佽埞鐢ㄦ澘鏉愭渶浣炽傛櫘閫氭姉鑵愯殌鎬ц兘銆佽壇濂鏈烘鎬ц兘鍙婇槼鏋佸弽搴斻傜粏灏忔櫠绮掍娇寰楁繁搴﹂捇瀛旀ц兘鏇村ソ锛屽伐鍏疯愮（鎬у寮猴紝铻虹汗婊氬埗鏇翠笌浼椾笉鍚屻5052閾濆悎閲戝睘浜嶢l-Mg绯诲悎閲,...
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