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标题: ASTM A911/A911M-15 清晰版 [打印本页]

作者: jinchao1207 时间: 2016-10-14 07:43:02 标题: ASTM A911/A911M-15 清晰版

本帖最后由 xifeng1115 于 2016-10-17 17:01 编辑

求助 ASTM A911/A911M-15 Standard Specification for Low-Relaxation Steel Bars for Prestressed Concrete Railroad Ties 清晰版

作者: liuxilin1215 时间: 2016-10-14 07:43:03

ASTM A911/911M-15 Standard Specification for Low-Relaxation Steel Bars for Prestressed Concrete Railroad Ties
http://bbs.infoeach.com/thread-116146-1-1.html

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