Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT Priority to CN201810519989.5A priority Critical patent/CN108414732A/en Publication of CN108414732A publication Critical patent/CN108414732A/en Status Pending legal-status Critical Current Links Original Assignee South China University of Technology SCUT Priority date (The priority date is an assumption and is not a legal conclusion. South China University of Technology SCUT Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 甘振先 李静 陈万昕 陈连佳 吕宏鑫 李小雨 高嘉欣 戚桠童 冯伟浩 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number CN201810519989.5A Other languages Chinese ( zh)
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Google Patents A kind of round outside but spuare inside crack resistanceĭownload PDF Info Publication number CN108414732A CN108414732A CN201810519989.5A CN201810519989A CN108414732A CN 108414732 A CN108414732 A CN 108414732A CN 201810519989 A CN201810519989 A CN 201810519989A CN 108414732 A CN108414732 A CN 108414732A Authority CN China Prior art keywords square spuare punching block outside round Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Google Patents CN108414732A - A kind of round outside but spuare inside crack resistance CN108414732A - A kind of round outside but spuare inside crack resistance
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