This system is made up of rolled steel beams with shear studs welded to the top flange. The beams aid precast concrete units which has a structural concrete infill above the beam involving the finishes in the models, and sometimes with an additional topping covering the models. The staff at https://cangzhoukaiyao85173.vidublog.com/30323361/rumored-buzz-on-cangzhou-kaiyao