Custom-designed internal components for gas turbines, namely, seal segments, rings, flow straighteners, [crush pads, ]flame arrestors, heat exchangers, [blades, rolls, cylinders, supports, gaskets, ]seals, [valves, ]deflectors, [couplings for gears, nozzles, buckets, blades, combustion liners, transition pieces, crossfire tubes and tube retainers, journal and thrust bearings, oil seals and deflectors, ]shrouds, [packing rings, shaft packings, ]mechanical seals[, bearings, shafts, gears, bushings, clutches, fan drivers, switches, pumps for fuel and oil]