Business scope: General items include pump and vacuum equipment manufacturing, pump and vacuum equipment sales, general equipment repair, general machinery and equipment installation services, mechanical parts and parts processing and sales, machinery and equipment sales, generators and generator sets sales, valves and sales, bearing sales, hardware products wholesale and retail, electronic products sales, wire and cable business, rubber products sales, import and export of goods, etc. (except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law).