A positioning device for positioning a number of two-sided adhesive pieces includes a base, a number of pulling blocks, and a pressing block. The system includes a passive or active radio identification device at each joint in the pipe or casing string. The server divides digital contents held therein into a plurality of packets, and transmits packets of a minimum unit for constructing the digital contents to the second network. The holes escape easily to a body contact region when the IGBT is turned off. The product is analyzed by, first, receiving instructions to select at least one of the product, the parts, or the materials for analysis. A multi-directional transmission serves to increase the distance between the two chassis and enable them to travel at differing vertical and horizontal angles.