This curtain wall structure integrates the advantages ofour company's classic products TBO-70A and TBO-60B system:continue to use and optimize the internal expansion tensile anchor structure with the advantages of tba-60b systemso that the bolt group structure notch and the sealant strip installation notch connected between the steel plate and theprofile are completed on the functional surface of the internal expansion step structure. and directly reflect the boltgroup structure notch on the boss ofthe advantages ofTBO-70A system, And the convenient installation function oftheTBO-70A system in which the glass is directly loaded on the boss structure is retained.