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High tensile bolt joint structure for box-shaped sectional column and h sectional beam and construction method thereof?keyword=High tensile bolt joint structure for box-shaped sectional column and h sectional beam and construction method thereof?keyword=High tensile bolt joint structure for box-shaped sectional column and h sectional beam and construction method thereof?keyword=High tensile bolt joint structure for box-shaped sectional column and h sectional beam and construction method thereof 专利,更快更准确