Recently, according to an announcement from the State Intellectual Property Office, Wanhua Chemical Group Co., Ltd. has obtained a patent titled "Fiberglass reinforced polycarbonate composition and its preparation method and use", with authorization announcement number CN111154246B. The patent abstract shows that the present invention relates to a fiberglass reinforced polycarbonate composition that improves appearance and impact resistance, its preparation method and use. The composition mainly includes the following components: 45 to 90 parts by weight of polycarbonate resin; 5 ~45 parts by weight of fiberglass; 0.5~10 parts by weight of grafted polycarbonate. The composition can greatly improve the surface gloss of the fiberglass reinforced polycarbonate composition. At the same time, the composition has excellent tensile strength, flexural strength and heat resistance. It also has excellent moldability of polycarbonate resin and is suitable for electronics. Electrical product enclosures or structural parts.