... , 251, 463 2. Dia: 1~300mm 3. Non sparking and magnetic 4. High Tensile Strength T2 Copper Round Bar1 ... , 251, 463 2. Dia: 1~300mm 3. Non sparking and magnetic 4. High Tensile Strength Alloy Shape Chemical CompositionRockwellHardness ... Roll Pins, Screws, BoltsIndustrial: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings ...