Beijing central kovanlong technology ltd. Is an international manufacturer specializing in the development, production and operation of electrical quality equipment, such as uninterrupted power supply (ups), modular data centres and data machines for distribution. From the backup 500va to the online 4. 8 mwa power-sharing series, the company's products meet the needs of users in different industries. Currently, the company has branches in beijing, shanghai, guangzhou, shenyang, chengdu, wuhan and xi'an。