A shock absorber for a remote-controlled model car includes a sealing member fixed on the topside of a piston. The sensor assembly includes a spool which is connected to one end of a wire that extends outside the cylinder. A pair of grooves is defined in the front panel adjacent opposite sides of the window respectively. The adhesive employs dual binder system, which includes linear polymer and cross-linking polymer. Moreover, considerable amounts of the Liquefied Petroleum Gas and light olefins are also formed as by-products that add value to the process. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shape to form a filter structure having an outer perforated tubular shroud interiorly lined with the filter media.