7 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