The present invention is a high-density circuit, wherein the circuit conductors, and the spaces between conductors, are preferably less than about 0.005 inches wide, and wherein the lines are disposed over a relatively large area. The circuit is defined by a pattern of grooves in a dielectric...
Large output: 8 production lines with a daily output of 1600 tons Applicable scene H-shaped steel is mainly used for beam and column members in industrial and civil structures. for example 1. Steel structure load-bearing brackets ...