A bimetal saw band which is suitable for cutting materials of high hardness and wear resistance at high cutting speeds and with a reduced consumption of coolant is disclosed. In the process, no heavy-duty equipment or steps are required to hoist chassis frames in the air and turn them upside down. In other embodiments, the functional polymeric phase change material comprises at least one crystallizable section and may also comprise a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section. The encrypted file along with header information is stored below the application layer within the mobile system.