Established in 1986, Ruian Aotai Electrical Appliances Co., Ltd. is a specialized manufacturer of copper, iron, porcelain, plastic screw lampholders (E14, E27, E40) and spigot lampholders (B15d, B22d). Meanwhile, the quality conforms to the GB1406-89 (screw), GB1407-80 (spigot), IEC-238 internationa...