The registered address of tianjin pumping industry (zengjin) ltd. Is located at road no. 7 (keyer no. 2 of china-taxed tianjin commercial secretary co. Ltd.), north china, and is run by a legal person representing zhang lin-soon market supervisory authority, including general projects: sale of pumps and vacuum equipment; sale of oil refining, chemical production equipment; sale of technical services, technical advice, exchange of technology, transfer of technology, extension of technology; rental of mechanical equipment; sale of mine machinery; sale of machinery dedicated to tunnel construction; sale of hydraulic machinery and components; sale of gas-powered machinery and components; sale of parts and components of machinery; sale of machinery for construction work; development of mechanical equipment; sale of mechanical equipment; sale of mechanical electrical equipment; sale of mechanical equipment; sale of mechanical equipment; installation, maintenance of specialized equipment in agro-forestry and forestry fisheries; sale of equipment other than electrical and electrical equipment authorized by law; construction and repair of electrical equipment; construction of electrical and electrical equipment under the exclusive control of the power chain; construction and repair of electrical equipment under the law; and repair of electrical equipment under the exclusive system