Guangzhou dou yun technology co. Ltd. Is a commercial smart self-help equipment producer with a strong research and development power in software and hardware, has obtained several national patents and has a 3,000 m2 equipment production centre in fushan, guangdong. At present, the main products sold are green bags free of charge, tokyo zero-dollar prototypes, smart models, prefabricated vegetables / ice cream sellers, shared child cars, raw and fresh containers, etc。