Floor boards, floor boards, floor plate, steel plate, pressure plate refers not only as permanent formwork concrete slab, and as the lower floor of the reinforced floor of the force involved in the calculation, work together to form the concrete composite slab. Floor of the advantages (1) light weight (2) high intensity (3) stiffness (4) to facilitate the construction of fast (5) a combination of easy-to-update (6) to facilitate the construction requirements of the industrial production of composite slab: (1) a combination of floor-pressure galvanized steel plates should be used, it is still galvanizing layer thickness should meet in the use of time will not rust damage requirements. (2) pouring concrete wave groove average width of not less than 50mm. When the tank is set stud connectors, composite slab should not exceed a total height of 80mm. (3) a combination of the plate thickness of not less than 90mm; pressure plate above the top surface of the mixed Pure thickness of not less than 50mm. (4) anchor requirements: a combination plate ends stud anchors should be set. Peg should be set at the end of bearing pressure plate at a concave rib, penetrating pressure plate and studs, steel weld on steel beams were. (5) a combination of plate steel sheeting on steel beams supporting the length of not less than 50mm. On masonry bearing length should not be less than 75mm. Composite slabs Performance: save a lot of temporary template. Eliminating all or part of the template support to reduce the amount of concrete. Permanently reduce the structural loads, high-rise buildings and earthquake zones more important in the transport, stacking, installation of all save a lot of labor. Reduce the workload facilitate the laying of communications, electricity, heating and other pipelines. And can be laid insulation, sound insulation, heat insulation, isolation and other materials. Improve floor performance full of good tensile strength and excellent ductility and concrete compressive strength and greater rigidity of steel. Open floor boards: YX76-305-915, YX76-344-688, YX70-200-600, YX75-200-600, YX75-230-690, YX51-250-750, YX51-305-915, YX51-341 -1025, YX51-253-760, YX76-295-880, YX35-125-750, YX76-313-940