① characteristic;1. Good carrying capacity: it can effectively carry a large load and ensure the safety and stability of the structure.2. Good fire performance: relatively not easy to burn, enhance the fire safety of the building.3. Strong sealing: effectively prevent concrete and other leakage, to ensure the construction quality.4. Superior bending performance: not easy to deform under force.5. High installation accuracy: plate type rules, easy for accurate installation and splicing.7. The sound insulation effect is relatively good: it can reduce the noise transmission to a certain extent.8. Strong durability: the material and structure give it a long service life.② Material; 235 / 355③ Scope of application: steel structure buildings, high-rise buildings, multi-storey buildings, and industrial plants④ Process; stamping process⑤ Model size; YXB 54-200-600