Transfer rollers for shaping machines; forming rollers, mechanical seals, feeder tanks for housing molten and powdered materials, pouring machine for transferring molten materials; foundrymen's ladles for glass and metals; dies for use with machine tools, extrusion molding machines and die-stamping machines used for extruding, stretching, and pressing materials; electric welding machines; machine parts for material transport and transfer machines, namely, tubes, nozzles and fairings; roughing...