An apparatus and method are provided for the simultaneous forming of a plurality of shaped articles from plural sheet metal blanks. The technology involves wireless mesh network systems, methods and devices based on the natural network coding. Applying the selected signal to the decoder to decode received symbols. The semiconductor layer on the second area is patterned into a second active pattern including a recessed portion and a second insulation pattern in the recessed portion is formed into a second device isolation pattern on the second area. The pipe-bending assembly is mounted on the base and has a transversely moving bracket, a vertically moving bracket, a location-changing assembly, a rotating transmission device, a rotating bracket and two pipe-bending devices.