Closed floor boards is the latest introduction of new technology products, is a more advanced composite floor deck system, the experiment confirmed than any other type of floor boards open 
 System more robust capacity and shear force. Closed special ribbed design makes steel deck and concrete panels are completely wrapped rib protection, as the place where the steel plate, 
 Order to maximize the development of steel - concrete name from the properties, successfully applied to the force of the floor boards reinforcement system, and has excellent fire resistance. Close 
 Mouth are: YXB51-200-600, YXB65-185-555, YX65-254-762, YX65-170-510, etc. 
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