E-commerce system of automatic guiding of engineering operation cloud-side service and used-material supply

The invention relates to an e-commerce system of automatic guiding of engineering operation cloud-side service and used-material supply, and relates to providing of an engineering execution end, a used-material requirement end, an engineering planning contracting end, a construction contracting end, a device assembly stock end and an engineering stock supply end. According to the system, a networking device is utilized for connection with a network server and a database, related work such as engineering planning and designing, contracting, used-material purchasing, machining, management, control and checking of automatic guiding of engineering is carried out through the system, real-time effective communication, progress grasping, common-view increasing, effective and smooth engineering task execution can all be achieved through functions of engineering construction space size and function marking graphs, 3D space simulation construction information graphs, 3D construction evolution image graphs, 3D used-mate