A class of ceramic compositions according to the formula PbMzx1-xO3 where M is selected to be either Sr or Ba, x is selected to be between 0. The circuit board is electrically connected with the daughter board assembly by a flexible electrical connector. Thus, the CRBT control server can play the CRBT based on a playing priority earlier defined by the called user. Then, a second solution is used in a second removal step to completely remove the photoresist layer. The roller is mounted with its axis above the cutting plane and its uppermost edge of the ribs at or above the axis of the bottom roll.