engine and propulsion system parts for boats and ships, namely, demountable rubber stave bearings, [ metal-backed rubber stave bearings and bearing housings, ] naval brass and non-metallic sleeve bearings, sleeve bearing of various metal shell materials, flanges bearing of various metal shell materials, [ rudder bushings, ] stuffing boxes and stern casting, [ and demountable keel coolers ]

[ structural parts of ships and boats, namely, dock bumper and ship fendering systems comprised of bumpers; pusher bumpers; torque journal hub propellers; towknee pusher plates; bucket fenders; window channels ]

[ non-metal hatch cover gaskets; non-metal window and door gaskets; ] [inflatable rubber air seal rings;] [ weatherstripping, all for use on ships and boats ]