Hainan Development HoldingsNanhai Co., Ltd. operates curtain wall and interior decoration engineering, photovoltaic glass, and special glass deep processing business in China and internationally. The company undertakes curtain wall engineering and decoration projects. It also provides energy-saving architectural glass, such as reflective glass, single silver LOWE and double silver LOWE, heat strengthened glass, tempered glass, laminated glass, heat curved glass, double curved tempered glass, digital printing glass, ceramic frit glass, and IGU.