Title: Wenzhou Hongda Electrical Equip Co.,Ltd. Description: was established in1995. One of our main product lines is family electrical equip, such as single-phase automatic voltage regulator (AVR), three-phase voltage regulator, UPS, TC set up and down transformer, battery charger, automatic inverter, door chime, impulse sealer, antenna, and so on. Tags: voltage regulators doorbells Category: Wenzhou URL: http://yadong.chinasuppliers.alibaba.com