ygs67 发表于 2018-2-28 11:10:19

ASTM C1433M-18

ASTM C1433M-18 Standard Specification for Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains, and Sewers (Metric)

admin 发表于 2018-3-4 23:00:51

谢谢您的分享，金币已奖励!
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