A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. The method includes selectively etching an active region of a substrate to form a recess pattern, performing a post treatment on the recess pattern using a plasma, and forming a gate pattern in the recess pattern. A controller, which is operable with the plurality of electrode nodes, is configured to sense current flowing through the electrode nodes. Specification information output portion generates and outputs specification information specifying a position of the compressed data where the information indicative of prohibition of copying was detected first by the copy protection information detecting portion. , from their axles to their periphery, so as to ensure a tight seal between adjacent blades.