paschalformwork2312
- 在住国：日本
- 現在地：未設定
- 出身国：日本
- 出身地：未設定
A whole building rests on columns. Most building failures are due to column failure. And most column failures are not due to a design flaw, but to poor construction practices. So it is very important to know the process of building the RC column well.
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