五隆興科技發(fā)展有限公司1. A-end of section steel column
B-end of 2-shaped steel column
3. A new type of reinforcement joint is used at the middle end of the section steel column to connect two non rotatable reinforcement through the rotating sleeve
4. Connection between column vertical reinforcement and section steel beam
Compared with welding technology, the efficiency of the whole connection process is doubled, the quality is better than welding, and the benefit is remarkable.
![[stiff column] the performance of double screw sleeve instead of welding is incredible!](http://www.phillydoglicense.com/en/wp-content/uploads/2021/08/1-150x150.png "[stiff column] the performance of double screw sleeve instead of welding is incredible!")
