matters needing attention in the inspection and appraisal of building steel structure engineering: the inspection of 1. steel structure can be divided into steel structure material performance, connection and construction matters needing attention in the inspection and appraisal of building steel structure engineering: the inspection of 1. steel structure can be divided into steel structure material performance, connection and construction matters needing attention in the inspection and appraisal of building steel structure engineering: the inspection of 1. steel structure can be divided into steel structure material performance, connection and construction matters needing attention: the inspection of 1. steel structure can be divided into steel structure material performance, connection and structure construction steel structure engineering inspection and appraisal precautions: the inspection of 1. steel structure can be divided into steel structure material performance, connection and structure construction steel structure engineering inspection and appraisal precautions: the inspection of 1. steel structure can be divided into steel structure material performance, connection and structure construction steel structure engineering inspection and appraisal precautions: the inspection of 1. steel structure can be divided into steel structure material performance, connection and structure