色五月视频,久中文字幕中文字幕亚洲无线,国产大片在线看,欧美啪啪精品,国产精品欧美日韩,国产福利在线观看永久免费

Guangzhou Steel support which requests should fit?

Guangzhou Steel support which requests should fit?

1. Guangzhou Steel components can be used to support the convergence of high-strength weld or bolt adapter;
2. Waist beam convergence node should be set at the support point adjacent to, and should not exceed 1/3 of the distance support;
3. Steel beam waist and row of piles, should choose between underground successive wall not less than C20 fine aggregate concrete infill; convergence node steel and steel support beam waist should be set stiffener.