Renqiu Zhengmai Electric Appliance Co., Ltd sing wis ditusuh taun 1994, lan dialing ing Pearl China North, Lake Baiyangdian, ana sing lubuk narab Hebei, Shijiazhuang nggih kidul, Area anyar Xiong'an di kuleh, supaya kuwi duduh transport sing cocog. Kuwi nggunakké prodhiyu kuwi: I. Auto electronic regulator; II. Generator rectifier Bridge III. Generator kanggo coach, machini injini, lan truck IV. Pertingan sing coach, makinari, lan trauk V. Heater Parking; VI. 48V, 56 V, lan 76 V generator in wingeri VII anyar. Tester Regulator; VIII. Tejsa supok retifier; IX. 24V, 48V, lan 56V singer portable DC Ten Tenet: pinuh user yaiku tujuan ngupayah : Percaya isa ngerti sipat - sipat.