A crosslinkable, pre-adhesive composition is described comprising an acid-functional acrylate copolymer and an aziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles. The relay apparatus receives from the communication terminal an access request for a service to be performed by the server. The check valve regulates a flow of liquid through the opening of the casing. The bridges run the length of the fiber. The pressure plate 100 is also provided with both a plurality of fitting rods 130 and the same number of channelled fitting tubes 140.