SPECIALIZED MATERIAL TREATMENT TO PISTON RODS IN HYDRAULIC AND PNEUMATIC CYLINDERS BY APPLICATION OF PROTECTIVE COATINGS THROUGH WELDING VIA THERMAL SPRAY PROCESS AT EXTREMELY HIGH TEMPERATURES AND SPEEDS TO PREVENT WEAR AND CORROSION

Metal castings and [engineered metal forgings;] engineered metal rollings, namely, ring shaped fittings of metal

metal castings and engineered [metal forgings and engineered] metal rollings in the nature of ring rollings [, open die forgings and closed die forgings]

metal castings and engineered metal forgings and engineered metal rollings and engineered fabricated metal parts and engineered machined metal parts

Metal castings and engineered metal forgings; engineered metal rollings, namely, ring shaped fittings of metal