... for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes ... , Wear Plates on Heavy Equipment, Bellows International Specification:Rods/Bars/Tubes: ASTM B196, 251, 463 ...