Abstract: A composite corner finishing strip for finishing a wallboard corner joint having a plastic body with a first flange and a second flange, each flange having a rib edge and an opposite free edge, such that the respective rib edges are joined to form a corner rib defining an angle. At least one of the first flange and the second flange have a plurality of perforations, the corner rib extends beyond a corner defined by the first and second flanges, and defines an interior space, and a web of face paper at least partially covers the body.

Abstract: A pneumatic tire (10) has an inner shoulder (11), an outer shoulder (12) and a tread (13) therebetween. The tread includes a plurality of circumferential grooves 30, 32, 34, 36 38) dividing the tread into a plurality of ribs including inner and outer shoulder ribs (14, 14?), inner and outer intermediate ribs (18, 18?) between the shoulder ribs and a central rib (16) between the intermediate ribs. First sipes (20) are provided in the shoulder ribs and the central rib. Each first sipe has an interlocking shape. Second sipes (22) are provided in the intermediate ribs. Each second sipe has a shape different from that of the first sipes. Third sipes (24) are provided in the intermediate ribs. Each third sipe has a shape different from that of the first and second sipes.