Hebei luang science and technology co. Ltd. Is an integrated enterprise that combines the development of aggregates, high-quality production and professional services. Guided by the provision of one-stop integrated product solutions, the company has specialized national research and development teams, large assembly production workshops, professional producers, and services based on domestic service and mobile steam washing vehicles. Companies attach great importance to the promotion of innovation in the domestic service industry, using the o2o development model to increase the efficiency of companies in terms of business sales, customer management, information matching, marketing, etc. Mobile steam wash vehicles are mobile carriers using electric tricycles or vans, which generate sufficient pressure and gas by heating for the cleaning of cars, are fast, mobile and suitable for new business service models for "door wash vehicles". The household cleaning project uses specialized elec...