原名:Choice of Steel Material to Avoid Brittle Fracture for Hollow Section Structures by Grainne Mulhern
作品简介:成型空心型材仍然对自由销售构成障碍,具体情况是冷弯空心型材,因为程度高。……
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原名:Choice of Steel Material to Avoid Brittle Fracture for Hollow Section Structures by Grainne Mulhern
作品简介:成型空心型材仍然对自由销售构成障碍,具体情况是冷弯空心型材,因为程度高。……