OEM truss girder /factory steel bar truss,steel floor truss,steel flat truss Instead of normal concrete formwork and composite steel decking. our product have advantage as follows: 1)saving labor,time,cost. (easy assemble,reinforced bar be prefabricated ) 2)better mechanical structure model. 3)no fire resistant and corruption maintain demand.(compare with steel deck) widely applied in steel structure floor,roof,steel-concrete composite slab composite Steel decking steel bar truss decking Final concrete slab Thick SHALLOWER, saving space,saving concrete cost installation easy easy reinforcement Welding steel mesh Steel bar. Saving cost Plate(steel sheet) AS SHEAR BONE,Bearing the loading after concreting Just as PERMANENT formwork. .useless after concreting Plate Fire protection demand No need Plate corrosion protection Maintenance demand.* specially around stud place where sheet harmed after welding No need Perfect performance in marine environment across direction layout Difficult to design&settle Easy to settle Mechanical property good better Seismic performance bad good Integrate cost high low Comfort due to slab autooscillation bad good