machine parts in the nature of replacement parts for oil rig blowout preventers; namely, valves, rams, ram shafts, ram blocks, ram holders, ram assemblies consisting of metal and rubber ram parts, pistons, piston assemblies consisting of metal and rubber piston parts, packing adapters, cylinder manifold pipes, locking segments, locking cones, locking plates, retainer plates, bleeders, sleeves, springs, dampeners, stabliziers, accumulators, poppets, charging assemblies, connectors, couplers, glands, and kelly valves; namely, hex or square pieces of pipe that hook on the top of the drill pipe and rotate the pipe

replacement parts for oil rig blowout preventers; namely, sealing components made primarily of rubber for use with oil rigs; namely, seals, seal kits comprising rubber seals and mounting hardware, packing elements primarily made of rubber; namely, annular seals that seal around the oil rig drill pipe and completely shut off the open hole when the drill pipe is removed, shock absorbing components made primarily of rubber for use with oil rigs; namely, ram rubbers, ram assemblies consisting of rubber and metal ram parts, piston rubbers, piston assemblies consisting of rubber and metal piston parts, O-rings, and wear bands