The registration address of hangzhou qianqiao science and technology ltd. Is located in room 429, 7th floor, co-ordination road, 28th street, zhejiang province, with the registration authority being the market supervision authority for the upper city of hangzhou, with legal representatives operating on general items: technical services, technology development, technical advice, technology exchange, technology diffusion; export and import of technology; import and export of goods; sale of the internet (other than for licensed commodities); supply of instrument instruments for sale; sale of instrumentation instruments; sale of instrumentation instruments for smartness; sale of instrument instruments for environmental emergency detection; sale of instrument instruments for environmental monitoring; sale of instrument for specialized instruments for agricultural and forestry purposes; sale of instrument for solid waste instrumentation; sale of equipment for sale on a daily basis; sale o...