RC Reinforced concrete structure, high-rise condominium, waiver high, is to get higher construction costs. Therefore, the downside is SRC SRC structure is a structure made of concrete and rebar. The narrow room with a floor below the main floor is thick enough to cause a lower rise. I placed the memory reinforcement of the steel frame is the frame, a portion of the upper floors may be the RC structure. Fireproof, durable, and strength in the RC structure when it is used. Is excellent in earthquake resistance. The long construction period, up to eight storeys high. It is recommended if you want a design. Combined with concrete structure.