Jiangmen Shengquan Hardware Products Co., Ltd. was founded in 1986. We specialize in the R&D and manufacturing of mid‑to‑high‑end decorative hardware products, with over ten years of well‑established OEM and ODM experience for overseas clients. GRANDOOR specializes in high-performance fire-rated doors (certified to BS476-20/22 and EN1634-1) and precision-engineered door systems, offering a comprehensive range from fireresistant to custom non-fire doors with 20+ architectural finishes to complement any design aesthetic. Combining cutting-edge technology with rigorous international safety standards, we deliver reliable security solutions trusted by residential, commercial, and industrial projects worldwide - "Safety Engineered, Quality Assured".