Hebei ingyong science and technology development co. Ltd. Is registered at no. 176, small and medium enterprises entrepreneurship zone (smez) of the zhuong county economic development zone, habei province. The zhang county market supervisory authority, represented by legal persons, is han bao-hung and operates in general terms: technical services, technology development, technical advice, technology exchange, technology transfer and technology promotion; property management; professional cleaning, cleaning, disinfection services; domestic service; daily residential services; cleaning services for buildings; maintenance services for the installation of water and electricity in residential areas; repair of electrical appliances; installation services for household appliances; sale of machinery and equipment; sale of mechanical and electrical equipment; manufacture of specialized equipment for environmental protection; sale of specialized equipment for environmental protection; sale of...