Analysis of the functionality of vintage umbrellas in ancient times: Chanel upgraded the umbtcje2bqe

Analysis of the functionality of vintage umbrellas in ancient times: Chanel upgraded the umbrella frame material by increasing the density of the SSV Polyester Fiber umbrella fabric and LRC coating, in order to achieve better sun protection and user experience, effectively blocking 99% of direct ultraviolet rays on the umbrella surface. Combined with high-pressure needle weaving, the remaining 1% of ultraviolet rays are repeatedly consumed in the gaps of the umbrella fabric, ultimately achieving a 100% sun protection effect and rain proof effect, not to mention