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旧 2009-09-09, 06:22 PM   #1
huangyhg
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默认 i am traveling to canada for a 6-mo

i am traveling to canada for a 6-mo
i am traveling to canada for a 6-month work experience. can anyone inform me about the classification of structural materials, their application and the main structural characteristics (yield stress of steel, compression stress resistance of concrete, and module of elasticity of both? thank you for any other tips.
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